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fuel leak

Old 07-26-2015, 02:23 PM
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fuel leak

I've had my 2005 automatic with 90,000 miles rx8 since April 2014. In December of 2014 my car stopped starting tried the deflooding process but that wouldn't work. I didn't really have the finances to fix so it sat till about February of this year, ended up swapping out my engine with an imported one. Later found out that this car had already had the engine swapped under the extended Mazda warranty. My car was driving fine after the swap only issue was the check engine light would stay on. I was told it was probably just the o2 censor since the car was blowing a lot of smoke before the swap. But the idle was fine didn't have any issues, but last night I was about to park when the car suddenly died. When I tried restarting it I got a heavy fuel smell and then noticed my car leaking fuel right by the engine over on the passenger side. Could this be something that just wasn't installed properly during the swap, like a line or is this a different problem altogether. Any help would be appreciated, this is my first time posted so I'm sorry if I posted in the wrong section.
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Old 07-26-2015, 03:56 PM
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First I would get back in touch what whomever installed your swapped engine. Don't try to drive the car with a fuel leak, that would be a disaster. They should be responsible for any loose or leaking fuel lines. If you did the sway yourself, go back over all your connections to find where it is leaking. Could be the old fuel lines were reused instead of new fuel lines. It could be something rubbing against the lines.

Anyway, if you are not an experienced rotary mechanic with knowledge of the fuel lines in an RX8, get someone with experience to help you. You have no location in your sig, there may be RX8 club members, and/or rotary wrenches in your area. Beware of dealers here, they may misdiagnose you or do more than necessary, and rip you off.

https://www.google.com/search?q=rx8+...ih=994&dpr=0.9

https://www.rx8club.com/series-i-tec...hey-go-231895/

A CEL on start-up isn't usually anything motor-threatening.
Its likely an evap leak or bad CAT or O2S. (TeamRX8)

But a blinking CEL is always a misfire.

Did you throw a code? what is the code number?


Go here and scroll down to the section on CEL and codes.

https://www.rx8club.com/new-member-f...t-here-202454/




I know you said you had swapped an engine recently, but there may be other maintenance issues on your RX8 since it had 90,000 plus miles on it.

RX8 Club’s recommended maintenance schedule, more comprehensive and proactive than Mazda’s schedule.
30,000 miles:
- Replace Ignition coils
- Replace Plug wires
- Replace Spark plugs
- Clean MAF (mass air flow sensor)
- Clean ESS (e-shaft sensor)
- Reset ESS profile
- Clean power steering connections
- Clean battery terminals and clamps
- Replace transmission fluid
- Replace coolant (Mazda FL-22 is highly recommended)
- Replace air filter
- Replace brake fluid (fluid in the brake lines AND the clutch line)
~$300 USD in parts if you shop smartly.


every 60,000:
...all 30,000, plus...
- Clean all chassis electrical grounding points
- Replace accessory belts
- Clean OMP lines
- Replace rear differential fluid
- Replace thermostat
- Clean / Straighten AC condenser fins
- Clean / Straighten oil cooler fins
- Inspect catalytic converter
- Clean / Inspect intake valving
- Consider / inspect all points in 90,000+ as well, many items fail early
~$130 USD in parts if you shop smartly.

90,000:
...all 30,000, plus any 60,000 not yet done, plus...
- Replace coolant bottle
- Replace radiator hoses
- Replace radiator
- Replace front O2 sensor
- Replace motor mounts
- Inspect clutch pedal assembly for flex / weld breaks
~$900 USD in parts if you shop smartly.
At 100k, anything original in the cooling system is really suspect and failure prone. It represents the biggest threat to your engine.
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Last edited by gwilliams6; 07-26-2015 at 04:24 PM.
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Old 07-26-2015, 05:14 PM
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Originally Posted by gwilliams6 View Post
First I would get back in touch what whomever installed your swapped engine. Don't try to drive the car with a fuel leak, that would be a disaster. They should be responsible for any loose or leaking fuel lines. If you did the sway yourself, go back over all your connections to find where it is leaking. Could be the old fuel lines were reused instead of new fuel lines. It could be something rubbing against the lines.

Anyway, if you are not an experienced rotary mechanic with knowledge of the fuel lines in an RX8, get someone with experience to help you. You have no location in your sig, there may be RX8 club members, and/or rotary wrenches in your area. Beware of dealers here, they may misdiagnose you or do more than necessary, and rip you off.

https://www.google.com/search?q=rx8+...ih=994&dpr=0.9

https://www.rx8club.com/series-i-tec...hey-go-231895/

A CEL on start-up isn't usually anything motor-threatening.
Its likely an evap leak or bad CAT or O2S. (TeamRX8)

But a blinking CEL is always a misfire.

Did you throw a code? what is the code number?


Go here and scroll down to the section on CEL and codes.

https://www.rx8club.com/new-member-f...t-here-202454/




I know you said you had swapped an engine recently, but there may be other maintenance issues on your RX8 since it had 90,000 plus miles on it.

RX8 Club’s recommended maintenance schedule, more comprehensive and proactive than Mazda’s schedule.
30,000 miles:
- Replace Ignition coils
- Replace Plug wires
- Replace Spark plugs
- Clean MAF (mass air flow sensor)
- Clean ESS (e-shaft sensor)
- Reset ESS profile
- Clean power steering connections
- Clean battery terminals and clamps
- Replace transmission fluid
- Replace coolant (Mazda FL-22 is highly recommended)
- Replace air filter
- Replace brake fluid (fluid in the brake lines AND the clutch line)
~$300 USD in parts if you shop smartly.


every 60,000:
...all 30,000, plus...
- Clean all chassis electrical grounding points
- Replace accessory belts
- Clean OMP lines
- Replace rear differential fluid
- Replace thermostat
- Clean / Straighten AC condenser fins
- Clean / Straighten oil cooler fins
- Inspect catalytic converter
- Clean / Inspect intake valving
- Consider / inspect all points in 90,000+ as well, many items fail early
~$130 USD in parts if you shop smartly.

90,000:
...all 30,000, plus any 60,000 not yet done, plus...
- Replace coolant bottle
- Replace radiator hoses
- Replace radiator
- Replace front O2 sensor
- Replace motor mounts
- Inspect clutch pedal assembly for flex / weld breaks
~$900 USD in parts if you shop smartly.
At 100k, anything original in the cooling system is really suspect and failure prone. It represents the biggest threat to your engine.
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Thank you for the quick reply, I had taken my car to aamco and they said everything looked, but I do think the ignition coils need to be changed. However right now with this issue the car won't turnover just cranks. I have a video of where the leak is coming from but I don't know how to post it on here. Also I'm in Ontario CA
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Old 07-26-2015, 06:20 PM
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Did aamco put in your engine ? I would be surprised if aamco folks really knew their way around a rotary car. There are regional RX8 club forums for your area. I would try to reach out to some SoCal. members and find a local rotary shop to properly work on your car. or ask for mechanical help from members who would come out to you.

If you really have a fuel leak, DO NOT try to start it. A spark could ignite the fuel vapors from the leak. The vapors are more dangerous that even the liquid gas. You must get that taken care off before anything. The car will need to be raised so you can get underneath to see where the leak is coming from. Unless someone can come to your home and you can carefully roll the car onto ramps, you will need to have it towed to a shop with a proper lift. And if it is towed ,you must tell them there is a potential fuel leak. It shouldn't get much worse without pressure from a running fuel pump, but please be careful.

If you spend some time and read through the new owners posts, you will see how critical all your ignition components are in a rotary, even more so than on a piston car. Any worn or failing single ignition component can cascade into engine and/or cat failure.

There are threads there also on starting issues.

https://www.rx8club.com/series-i-tro...t-here-222584/



Members here will be helpful , but we also need you to read and search for answers yourself, which are posted on the forum. Rather than just wait for someone to do the searching for you. Take the time, most answers to any issue are here if you look.

You can search the forum sections that pertain to what you are looking for. And you can just google: "RX8club, starting issues " , or whatever the issue or problem.

Last edited by gwilliams6; 07-26-2015 at 06:43 PM.
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Old 07-26-2015, 06:34 PM
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Also I forgot to mention the car only leaks fuel as it's trying to crank over. And I can't remember the code for the engine light, but I believe it was a misfire in cylinder 2
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Old 07-26-2015, 06:45 PM
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Go to that new owners thread I linked. It will tell you what a misfire CEL means. You really need to stop and do some reading, ok.

https://www.rx8club.com/series-i-tec...t-here-222280/

I was kind and did your searching for the link, but you need to stop and read,please.

Last edited by gwilliams6; 07-26-2015 at 06:48 PM.
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Old 07-26-2015, 10:47 PM
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I appreciate the help, sorry didn't mean to make it seem like I was trying to avoid doing a little research, I just wanted to make sure I described the problem as best as I could in case someone else had anything to add. But I am definitely going to look at those links now that I'm off of work. Thanks again
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