Another "Rough Idle"
#1
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Location: Portsmouth NH
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Another "Rough Idle"
About two tanks of gas ago I noticed much more vibration in the gear shift lever, much lower idel (no more than 750-500). Took it in, tech noticed what I did, "cleaned plugs,checked cats) still did it. He called Mazda was told to take it to again "highway speeds" and leave it in 4th. Well it was a tad better but is at it again AND is going back again. Maybe a cracked engine mount? I drove it like a sissy until I found out the tires are shot since then "a little harder". No drop off in power at any RPM although sounds tinner( tin-e-er) if thats even a word? Anyway kinda pissed.
#2
Go Texas Longhorns!
I would check the MAF, clean it down with some electronics cleaner, make sure your air filter is also clean, get some redline fuel injector cleaner and run that through the tank. How many miles do you have? You may need new spark plugs as ours need to be replaced every 25K or so.
There was a heat issue with the engine mount near the cat that there is a TSB for, but unless you notice a real bad vibration, its likely something else.
There was a heat issue with the engine mount near the cat that there is a TSB for, but unless you notice a real bad vibration, its likely something else.
#3
mine does the same thing, early production 2004 model. Best bet is to drive a little harder once and a while and clean out the carbon. If you baby the car too much, like shifting at 4k rpm all the time, they will studder a little. Also try running octane boost through a tank.
#4
Bummed, but bring on OU!
If you have been babying it, as stated above try some Yamaha Ring Free. I use it every 3rd tank or so, for carbon prevention, along with a few redlines per trip. It's about $12 a bottle at my local outboard shop, and you use 2-4 ounces at a time.
#5
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Is there a 'pop' noise from the engine when you redline it and the carbon clears out?
Sometimes this happens with my car, always wondered about the pop noise, but it only happens every now and again, and I have to be pushing the car hard.
Sometimes this happens with my car, always wondered about the pop noise, but it only happens every now and again, and I have to be pushing the car hard.
#8
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Thanks for the input. I just turned 16k and nope the whole car does not shake. The tranny much more so and feel it in the seats. I haven't heard a pop either, Monday I'll make sure to tell the techs about the MAF and maybe an engine mount?
#9
Just out of curiosity, what RPM should the engine be idling at typically?
Mine idles at just under a thousand, and sometime dips closer to 750 where is shudders for a bit before picking up again. (Particularly when I have a A/C set at 3 or 4)
Is this normal, or should I have it check out? I have only 1800 miles on my car.
Mine idles at just under a thousand, and sometime dips closer to 750 where is shudders for a bit before picking up again. (Particularly when I have a A/C set at 3 or 4)
Is this normal, or should I have it check out? I have only 1800 miles on my car.
#10
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Originally Posted by poker
Is there a 'pop' noise from the engine when you redline it and the carbon clears out?
Sometimes this happens with my car, always wondered about the pop noise, but it only happens every now and again, and I have to be pushing the car hard.
Sometimes this happens with my car, always wondered about the pop noise, but it only happens every now and again, and I have to be pushing the car hard.
#11
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Originally Posted by brtzrx8
Just out of curiosity, what RPM should the engine be idling at typically?
Mine idles at just under a thousand, and sometime dips closer to 750 where is shudders for a bit before picking up again. (Particularly when I have a A/C set at 3 or 4)
Is this normal, or should I have it check out? I have only 1800 miles on my car.
Mine idles at just under a thousand, and sometime dips closer to 750 where is shudders for a bit before picking up again. (Particularly when I have a A/C set at 3 or 4)
Is this normal, or should I have it check out? I have only 1800 miles on my car.
My suggestion is get out on an empty road or a highway and run the car hard in 3rd gear for example from 7k to redline for a couple minutes, and I mean keep it in that ran for a couple minutes, you will notice it idles better and the car just plain wants to run better after doing so.
#12
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Originally Posted by Brice-RX8
My suggestion is get out on an empty road or a highway and run the car hard in 3rd gear for example from 7k to redline for a couple minutes, and I mean keep it in that ran for a couple minutes, you will notice it idles better and the car just plain wants to run better after doing so.
#13
5/1/06 - Revi + Ram Air - 24,000 miles + installed new spark plugs with the Revi. – OEM tires, exhaust, 91 octane.
Idle – the bumble, or rev dip or whatever it is called is gone. Smoother idle now.
Consensus seems to be that the right CAI will improve the idle of the rotary.
Idle – the bumble, or rev dip or whatever it is called is gone. Smoother idle now.
Consensus seems to be that the right CAI will improve the idle of the rotary.
#15
Stalls When Idling
just had my 2004 RX8 at the dealership yesterday for dying out at red lights. It has 52,000 miles on it. They changed the spark plugs and did an engine clean, oil change and charged me around $500.00. Driving home today it died at another red light just like before. was able to get it cranked and get home. anyone know what this problem is?
#17
i just heard today that several RX8s had to have engines replaced, the early 2004 models
they still say they dont know what is wrong with mine after being in the shop a full day
getting worried now
they still say they dont know what is wrong with mine after being in the shop a full day
getting worried now
#18
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Originally Posted by ZOOMinMS
i just heard today that several RX8s had to have engines replaced, the early 2004 models
they still say they dont know what is wrong with mine after being in the shop a full day
getting worried now
they still say they dont know what is wrong with mine after being in the shop a full day
getting worried now
wow,
never heard of that. you should post this on the disscussion section...
beers
#19
THE BITCH IS DEAD
Join Date: Sep 2005
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im down here in houstin, tx n its raining really bad, i have the AEM installed n the greddy sp2, i was waiting at the light n the rpm's just dropped a lil n then bounced right bak up, a gave it a lil gas but it didnt die on me so i was ok, the drive home was alright, no problems or nethin, wen i parked in my garage the rpms died down n bounced bak up again, but it didnt die on me, im just curious if this ROUGH IDLE has nethin to do wit the rain n my AEM?
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