|
2004 Rx8 shuts off while Driving
Hey all, so I have a 2004 rx8 with about 78k miles. While driving on the highway for about 20 mins, when I have to brake and slow down, the RPM needle goes down to the idle state than the car would automatically shut off. I would have to wait a minute or two before starting the car again and it takes sometime before the car could idle properly (The car struggles to stay on)
Does anyone know what the issue might be, I had two people tell me it might be the coils, any suggestion will be helpful. |
There are a lot of threads on this, but heres what you should look into:
1. Ignition components: Coils, Plugs 2. What type of intake do you have? You're engine could be starving for air... 3. Possible bad CAT. Check that out. |
I had the same problem a few months ago...specially when i had the AC on, it shut off. Always when i came to a stop also, mine has 98k miles, and its an '04. I did a complete tune up to it and cleaned the MAF SENSOR, and now the car starts better and quicker and runs a lot better too, doesnt vibrate as much but when i have the AC on it still vibrates a little but it doesnt shut off anymore...so do a tune up if u havent done it yet and clean the MAF SENSOR.
|
Thanks guys, I recently change the CAT about year and half ago, I'm going to have the shop check the coils and do a complete tune up, hoping that will solve the issue.
Thanks again |
could it be a vacuum leak? Check to see that all of your rubber hoses that are connected to the intake are not leaking/ are snug on on both ends ... does your car make a BOV whistle during free revs etc?
A vacuum leak will alter your fuel trims under constant load during cruising and when you stop, those fuel trims will no longer be valid ... therefore the fueling is incorrect and your car shuts off |
I'm thinking its the coils, most people agree with me. I have don't hear a whistle noise when I rev the engine but I'll make sure to mention it to my cousins when he works on my car to check the vacuum as well.
|
Changing the plugs, coils, and wires is the best bet. Cleaning the MAF and air filter is good too.
Another possibility is the fuel pump. Although, usually when the fuel pump fails there's no idling issues. |
Hahah its funny I should participate in this post because now my car is being problematic. Whenever I fully depress the clutch to the floor--generally from going from 50mph or greater to a full stop--the RPMs go from a 1000 +-100 for a few seconds and then wildly goes down to 500 to a 1000 then drops to 0.
I decided to play some experiments on the way home noting this problem... if i keep the clutch depressed as I slow, then I stall out--and only the check engine and battery light comes on and the engine is recoverable by reengaging the gear. If I keep it in neutral with no clutch depressed then I get the quad light show as I slow and the engine dies. Lastly if I let the engine stop me by downshifting then I had no real issue other than when engaging the clutch if I took my time I faced the opportunity of stalling as it frequently got close to 0. So here's what I have looked at. I'm installing my BHR coils soon, perhaps even like tomorrow soon. I took off my MAF and noted the sensor was dirty as heck, so I cleaned it with the CRC MAF cleaner, let it dry... took it for a drive still the same issue, then I removed the MAF to check it again and noted the O-ring is broken... and the sensor still looks dirty--so perhaps I get a new one. Will wait for thoughts on that... the spark plugs have maybe 6000miles on them, just recently installed them. I did note the idle was a bit better when stopped after I finished installing my circle earth system yesterday; however, I was curious if that could have made the slow down issue worse? I have not replaced the CAT... I may take a peak at the honeycomb and see if it still looks good--if not thoughts on a BHR midpipe w/ Davesport or the RP SuperCat? Thanks! Oh its a 6Speed MT with 82,000miles on it and I keep it extremely well maintained. EDIT--Simple Fix: Replaced the MAF, one of the wires in it was broken so a replacement solved the entire problem. Idles and drives far better! |
So I have done a good amount of research on this issue. I have read so many opinions about possible solutions to this issue, from checking the coils (people are big fans of changing the coils, especially in this forum :) ), checking the CAT, Fuel Pump, and cleaning the MAF or replacing it. Also, I have spoken to others who have gone through the same issues, most have taken their cars to Mazda so their motors can replaced under the warranty. Unforunately, my car has a straight pipe so I would assume Mazda will just consider my car void under the warranty.
I bought a replacement MAF for my car and will be replacing the air filter as well. To my amazements, there are so many people out there who have gone through this same issue with this car. I have owned this car about 1 year in half now and I have gone through so many issues, on average I would say every 4-5 months I am dropping this car off to a mechanic shop. I have decided once I solve this issue, I'm going to sell the car. Don't get me wrong, I love driving the Rx8 and physically it is a beautiful car but you get to a point that you just want a working car. I can't believe Mazda has release a vehicle like this in production with so many issues, this is just proof that Mazda does not care about giving their consumers a 100% reliable product. |
I've had my rx8 for over a year now ... absolutely 0 issues, I just maintain it well (knock on wood) .... but I understand where you are coming from ... good luck with your search.
|
I had this same problem. Only thing is my car shut off after the 2nd time and wouldn't come back on.
It's like everyone says. 1. Bad CAT 2. Coils/Plugs 3. Sensor Now this could have happened for a couple of reasons. Does your car take a couple seconds to start up or does it start quickly? That was my issue and eventually the CAT died with everything else. Just get it to a stealership and checked. Like an $80 inspection and they'll probably tell you its something one of us said and charge some outrageous price.... Can't avoid it...:wallbash: lol But good luck to you and hope all is well. |
This issue is usually alleviated by not only cleaning/replacing the MAF sensor (as needed) but by also resetting the e-shaft profile and making sure the e-shaft position sensor is clean, as well.
|
or take it to a rotary shop like KDR, IRP or JPR ... they are all in your area. I would go 1. KDR, 2.JPR, 3. IRP in terms of my preferance
|
stinksause:
Talk to me after another year goes by YeepsRX8: I had my cousin check the coils and I recently replaced the cat, I'm still have the same issues though :/ This coming week, I will change the air filter and MAF, hopefully that fixes the issue, if not, than I will probably take it to one of the rotary shops (KDR, IRP or JPR) or a mechanic I know will be able to fix the problem but will rape me with pricing. A mustang is looking so much better to me right now. |
I had the same problem about 3 months ago.. whenever i stopped car would die, when i got home i pulled off my intake and the shop had overfilled it and it went up into my intake.. all i did was got some mass airflow cleaner and ran a bottle of seafoam while keeping my car at about 7.5k for 10 minutes and it fixed the problem.. been running great ever since
|
Azam, do you do your own maintenance or take it somewhere? I will definitely get back to you in a year ... especially since I will be turbo by this winter
But nonetheless, good luck with your car passion regardless of whether there is a rotary in your future |
:Drooling_well my 04 automatic rx8 has been gently whistling on lower rpms since i got it 8 months ago & losses power easily... especially if i turn the lights on, when the ac is on or loud radio the car shuts-off soon after... maf sensor & filter seem to be fine, replaced ignition wires & spark plugs months ago, now im going to try to replace the engine-belts & alternator ... if anyone has any solutions or advice plz respond, i would love to finally have the car running with no issues..
|
BabybooR33:
I would check the air filter by your intake (apparently mines was really dirty), also the MAF sensor might have something broken in it. If anything, I would just change the whole sensor (its about $80 bucks). From doing all my research, I've notice a good amount of time people would clean or replace the MAF and the car would run fine. |
So after changing the air filter in the intake, cabin air filter and the MAF sensor, 20 mins of driving the car the rpm needle struggle to stay on 1000 rpm and went down to zero and it completely shut off.
So from changing the CAT, checking the coils and the alternator. My final conclusion is that it has to be the motor, I will drive the car 3-4 months more than be in the process of selling it. It was a fun car to drive but definitely a car that does not have a long life span and very high maintence. Hopefully Mazda fix these issues in the 2006 - 2009 models |
good luck man ... I hate seeing people turn away from the 8, but that's life of a rotary owner I guess
|
Well guys, it seems like I jump the gun. I guess my car had to get use of the new sensor, I drove it to NJ (35 - 40 min drive) on Saturday and drove the car all day today. The car drove better than before and it has not stalled on me once during the past two days.
I assume the car just had to get used of the new MAF sensor, I will keep you all updated since I know there are couple 8 owners out there going through the same issues. |
(2004-Automatic rx8)ok.. i finally replaced the battery, alternator, ignition coils, maf sensor, filter, belts & a belt pulley wheel that was making some noises(ignition wires+spark plugs replaced a few months ago) & the car starts up better & accelerates a little smoother/better, BUT 2-3k rpm engine whistle still persists & the engine sometimes almost shuts off when i come to a stop or red-light... anyone have any clues to what it may be? or im stuck with the way things are as long as it rides pretty decently..
|
Originally Posted by Charles R. Hill
(Post 3701688)
This issue is usually alleviated by not only cleaning/replacing the MAF sensor (as needed) but by also resetting the e-shaft profile and making sure the e-shaft position sensor is clean, as well.
|
Maf sensor
Originally Posted by hokie027
(Post 3675203)
hahah its funny i should participate in this post because now my car is being problematic. Whenever i fully depress the clutch to the floor--generally from going from 50mph or greater to a full stop--the rpms go from a 1000 +-100 for a few seconds and then wildly goes down to 500 to a 1000 then drops to 0.
I decided to play some experiments on the way home noting this problem... If i keep the clutch depressed as i slow, then i stall out--and only the check engine and battery light comes on and the engine is recoverable by reengaging the gear. If i keep it in neutral with no clutch depressed then i get the quad light show as i slow and the engine dies. Lastly if i let the engine stop me by downshifting then i had no real issue other than when engaging the clutch if i took my time i faced the opportunity of stalling as it frequently got close to 0. So here's what i have looked at. I'm installing my bhr coils soon, perhaps even like tomorrow soon. I took off my maf and noted the sensor was dirty as heck, so i cleaned it with the crc maf cleaner, let it dry... Took it for a drive still the same issue, then i removed the maf to check it again and noted the o-ring is broken... And the sensor still looks dirty--so perhaps i get a new one. Will wait for thoughts on that... The spark plugs have maybe 6000miles on them, just recently installed them. I did note the idle was a bit better when stopped after i finished installing my circle earth system yesterday; however, i was curious if that could have made the slow down issue worse? I have not replaced the cat... I may take a peak at the honeycomb and see if it still looks good--if not thoughts on a bhr midpipe w/ davesport or the rp supercat? Thanks! Oh its a 6speed mt with 82,000miles on it and i keep it extremely well maintained. edit--simple fix: Replaced the maf, one of the wires in it was broken so a replacement solved the entire problem. Idles and drives far better! |
Originally Posted by BabybooR33
(Post 3738399)
(2004-Automatic rx8)ok.. i finally replaced the battery, alternator, ignition coils, maf sensor, filter, belts & a belt pulley wheel that was making some noises(ignition wires+spark plugs replaced a few months ago) & the car starts up better & accelerates a little smoother/better, BUT 2-3k rpm engine whistle still persists & the engine sometimes almost shuts off when i come to a stop or red-light... anyone have any clues to what it may be? or im stuck with the way things are as long as it rides pretty decently..
whistle = vacuum leak Also it's possible that the o-ring on the MAF got pinched during install. |
Originally Posted by OL!z RX8
(Post 3670764)
I had the same problem a few months ago...specially when i had the AC on, it shut off. Always when i came to a stop also, mine has 98k miles, and its an '04. I did a complete tune up to it and cleaned the MAF SENSOR, and now the car starts better and quicker and runs a lot better too, doesnt vibrate as much but when i have the AC on it still vibrates a little but it doesnt shut off anymore...so do a tune up if u havent done it yet and clean the MAF SENSOR.
Hi I'm having the same problem mine has 90 and when I'm. On a stop happen. The same I was wondering how much did u pay for the tune up? Thanks |
^ If you don't actually know what's causing the problem, don't throw away your money on parts, hoping that one of the parts you replace will solve the problem. Take the car to a Mazda dealer, tell them what's wrong, and let them diagnose the problem and fix it. That's what they're getting paid for.
|
Originally Posted by Azam1030
(Post 3670776)
Thanks guys, I recently change the CAT about year and half ago, I'm going to have the shop check the coils and do a complete tune up, hoping that will solve the issue.
Thanks again |
Hello Guys, Im with the same problem right now, while driving after 20 mins, My RX8 shuts off. Anyone resolved the issue? Azam1030 Did you resolve the problem?
|
Look for a vacuum leak - spray shots of brake cleaner at the intake tubing, all over.
The car will sputter when the brake cleaner gets into the leak. |
Hey guys I have a 2004 Mazda rx8 touring turbocharged. The car was driving fine and then all of the sudden I downshift and leave the car in neutral and the car wasn't idling right and it shut off ?. Help anyone. Idk what it is and it's getting annoying
|
rx8 shuts off when you come to a stop
So guys i have the same problem working on girls 2007 rx8 runs rough and shuts of as soon
as you slow down to a stop it dies so i changed spark plugs no results i went to a friend and we unpluged the wire from the coil not the spark plug wire but the one that brings the power so i unpluged first wire turn over the engine doesnt start pluged it back same with 2nd and 3rd wires doesnt start but the 4th wire unpluged and car starts so means the 4th coil is bad i told her the results ordered 4 new coils at autozone with lifetime warranty 125$ gonna change them tomorrow and see what happens but very glad i went to a friend he showed how to check those coils , hoping for the best |
so apparently this is a common problem
same thing is going on with my 04 MT I changed the coil packs and cleaned the MAF. still wont idle and dies when in neutral/at a stop. from what ive researched, it could possibly be the air pump or the relay. is this rite? how could I test/check either? |
im having a similar issue.
i recently changed my oils and filters and use lucaus for the first time in my gas tank and my cars freaking out. It shuts off at low rpm and it backfiring insanely loud w a lot of flames. as i take off from 1st gear-2nd it bogs like its not getting enough air or gas. planning on checking the intake, and lines, vaccum and spark plugs. |
I am having the same problem
:worship:Hello,
I have an automatic 2004 with 45000 miles. I take good care of the car. It is garaged and I change the oil regularly. I was driving for 10 minutes and I just lost power and the car stalled. I was unable to re-start it. The local shop where I get oil changes is having trouble finding the problem. They say its not the ignition or fuel pump. 2 months ago I had a CEL on. It turned out that I needed a new CAT. The same shop replaced the CAT with 2 new oxygen sensors; all OEM parts. Since then the car has run well; until this stall. Any thoughts? In case this shop cant ID the problem, does anybody know a mechanic that has experience with this car in the northern New Jersey Bergen county area? I will bring it to the dealer if I have to.... But would rather not. Many thanks! |
Hi guys ,
It is such a pain to hear these owners all are facing same type of issues . I bought my 05 AT RX8 two month ago with very good price and it has only 58000 Miles on it . when i got it was totally flooded so with little research and getting info about this car i bought new set of coils , plugs , wires and new battery , then i did deflood my engine and it was working for 1 week fine then troubles start . first i noticed engine does not have good compassion and i was getting whisper noise and shaking when i was putting it in gear and when i was driving it for less than half hour especially behind the traffic light or when i was pressing break to stop or park the car engine got die , even took me more than half hour to start again . I have to mention also that in cold start idle is around 1.6 RPM and the engine is drinking huge amount of oil like before any daily start i should fill it by at least 2 quarts oil and total in only 1 month i bought it 10 quarts and i was wondering even there was no any leak at all. My other big problem is that our mazda dealer doesn't have any service or support for RX8 and they did not help me at all . Now i am just searching about these issues but till now i did get any direct answer ,all are possibility and suggestions to try change the parts and so on. I hop at least here you can help me to find the solution . |
Originally Posted by korance
(Post 4577481)
Hi guys ,
It is such a pain to hear these owners all are facing same type of issues . I bought my 05 AT RX8 two month ago with very good price and it has only 58000 Miles on it . when i got it was totally flooded so with little research and getting info about this car i bought new set of coils , plugs , wires and new battery , then i did deflood my engine and it was working for 1 week fine then troubles start . first i noticed engine does not have good compassion and i was getting whisper noise and shaking when i was putting it in gear and when i was driving it for less than half hour especially behind the traffic light or when i was pressing break to stop or park the car engine got die , even took me more than half hour to start again . I have to mention also that in cold start idle is around 1.6 RPM and the engine is drinking huge amount of oil like before any daily start i should fill it by at least 2 quarts oil and total in only 1 month i bought it 10 quarts and i was wondering even there was no any leak at all. My other big problem is that our mazda dealer doesn't have any service or support for RX8 and they did not help me at all . Now i am just searching about these issues but till now i did get any direct answer ,all are possibility and suggestions to try change the parts and so on. I hop at least here you can help me to find the solution . Engine doesn't have good compassion? Or do you mean comression? You're filling 2 quarts of oil daily? :dunno: Did you check for any leaks? Is it burning all this oil? |
Originally Posted by GK1707
(Post 4577526)
Engine doesn't have good compassion? Or do you mean comression? You're filling 2 quarts of oil daily? :dunno: Did you check for any leaks? Is it burning all this oil?
|
05 MT Im having similar problems. Mine idles at 700 to 800 but then dips down to 400 and occasionally dies. Also a couple times a week it will have an erratic idle where it revs itself up to 1500 and then dips fast to 900 and it continues this until I put it in gear. Within the past 3 months I have changed the ignition system, got a red top battery, new mitsubuishi starter, new clutch, cleaned maf, and the cat looks good. I am hoping to get some other input before I take it to the mechanic because around here anyone with a vagina gets fucked over. For example, the last time I took it to the shop for these issues the mechanic said it was all in my head....
|
So coming back to the 2007 rx8 that i worked on for a friend of mine so she ordered the coils i changed them started the car and it run fine untill warmed up then it started doing the same thing runs rough when warm when driving its fine but as soon as you stop the rpms go down it starts running rough and dies so the rx8's had a recall on their engines they wear out fast so if your car is under 100 thousand miles your covered with a free engine replacement if your engine is bad so do the thing i did go to the dealership and ask if your car is covered they will prolly say no but stay and make them check because its 100% covered to be replaced free sheadule an appointment for a compression test nothing else just the compression test its a 100$ if it fails the compression test the inspection is free along with a new engine! Ive done it my friend is driving her red rx8 and is very happy with the new engine for free!
|
I read the post online the guy had the same issue and the dealership changed from spark plugs to cat and nothing then they did the compression test so dont waste money buying different parts go make sure your car is covered with a new free engine make them check and then run the compression test it will fail if you have the same issue as i posted
|
Originally Posted by pivor11
(Post 4579820)
I read the post online the guy had the same issue and the dealership changed from spark plugs to cat and nothing then they did the compression test so dont waste money buying different parts go make sure your car is covered with a new free engine make them check and then run the compression test it will fail if you have the same issue as i posted
|
Originally Posted by Azam1030
(Post 3671001)
I'm thinking its the coils, most people agree with me. I have don't hear a whistle noise when I rev the engine but I'll make sure to mention it to my cousins when he works on my car to check the vacuum as well.
|
Hello everyone my name is Hafeez and i'm driving a 2009 RX8 R3. recently there was a leak in my coolant tank so had to change a new one, since i'v changed the new one my car started to over heat and the coolant sensors were always on, then the mechanic switched the previous sensor with the old sensor, but my car now stops every time i stop revving the engine every red light. it basically only drives normal for 5 min. Plz help me identify the problem
|
A few years ago I was having similar issues with my 04 MT. I would be driving and the car would just shut off, then start after resting for about 15 minutes. After this happened a couple of times on the interstate, I asked my buddy that races 8's and he said the fuel filter or pump. He just happened to have an extra stock pump and we replaced mine. She hasn't shut off on me since then and that was in 2009/10. The filter was just clogged and fuel couldn't get through after enough pressure built up. But each car is different.
Posted From RX8Club.com Android App |
Hey everyone new member here as well as new rotory owner. 2004 rx-8 Gt Mt 38k miles. No test done so far Issue: car starts fine but dies out every time at stop but never dies while rev while park and letting off throttle (before moving car). Takes 30-40 min till it will start again after it has died otherwise it will crank but not start and have killed my battery by multiple attempts of trying to start car (replaced battery as old one fail battery test). There is carbon burnt smell like a burnt clutch smell reeking through my cabin area ether sitting in car while running and or while driving.
Car has been bought 5 months ago with this problems and have been just garage kept ever since bought as its just a project car. I've worked on cars before just never a rotory motor. I appreciate your time and consideration in my matter mahalo. P.S came with after market exhaust not sure if just cat back set up haven't looked underneath yet. Not sure on exhaust brand. Aftermarket air intake K&N not sure if original filter box no cover. Car sounds amazing nice sound while revving no power lost except one time while driving 70-80 mph during wide open throttle car seized to continue as if it lost compression or gas rpm's dropped slowly no response while pressing gas pedal lights everything was ok had to pull over waited about 45 min till it started back up again and I just took it easy on the throttle for the remainder of 20 mile drive and got home ok. |
Originally Posted by clutchboi808
(Post 4657586)
Hey everyone new member here as well as new rotory owner. 2004 rx-8 Gt Mt 38k miles. No test done so far Issue: car starts fine but dies out every time at stop but never dies while rev while park and letting off throttle (before moving car). Takes 30-40 min till it will start again after it has died otherwise it will crank but not start and have killed my battery by multiple attempts of trying to start car (replaced battery as old one fail battery test). There is carbon burnt smell like a burnt clutch smell reeking through my cabin area ether sitting in car while running and or while driving.
Car has been bought 5 months ago with this problems and have been just garage kept ever since bought as its just a project car. I've worked on cars before just never a rotory motor. I appreciate your time and consideration in my matter mahalo. P.S came with after market exhaust not sure if just cat back set up haven't looked underneath yet. Not sure on exhaust brand. Aftermarket air intake K&N not sure if original filter box no cover. Car sounds amazing nice sound while revving no power lost except one time while driving 70-80 mph during wide open throttle car seized to continue as if it lost compression or gas rpm's dropped slowly no response while pressing gas pedal lights everything was ok had to pull over waited about 45 min till it started back up again and I just took it easy on the throttle for the remainder of 20 mile drive and got home ok. |
The fuel pump has been known to overheat if there is less than a 1/4 tank of gas. That smell you have may be the CAT, whip it off and check if is blocked. Ensure the battery terminals are clean and secure.
|
Thanks for the reply GK1707&CRO8TIA. The only thing I know so far when bought was transmission is brand new and the motor is original motor and haven't done a full tune up yet as I have no access of a garage at this moment I'll keep you guys updated on the matter and condition of plugs and wires. Also I am the 3rd owner of this car but no car facts on vehicle history. I've done a lot of research and completely understand the concept on how rotory works just not the technical areas already mention. fuel pump struck me by surprise thanks for that did not know. Thinking of removing front bumper to allow better access for my hd jack no low profile jack available. I will try to get some pictures up.
|
Originally Posted by clutchboi808
(Post 4657910)
Thanks for the reply GK1707&CRO8TIA. The only thing I know so far when bought was transmission is brand new and the motor is original motor and haven't done a full tune up yet as I have no access of a garage at this moment I'll keep you guys updated on the matter and condition of plugs and wires. Also I am the 3rd owner of this car but no car facts on vehicle history. I've done a lot of research and completely understand the concept on how rotory works just not the technical areas already mention. fuel pump struck me by surprise thanks for that did not know. Thinking of removing front bumper to allow better access for my hd jack no low profile jack available. I will try to get some pictures up.
|
| All times are GMT -5. The time now is 12:08 AM. |
© 2024 MH Sub I, LLC dba Internet Brands