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I'm new here. I just bought a 2009 Corvette and it is said to need a fuel tank pressure sensor replaced. I can do the job myself, most likely, if I can find info on how to get to where it is so it can be replaced. The Chevrolet dealer estimates it is a two hour job.
I have not found anything that shows how to do the job anywhere, and I checked the archives here and did not find anything on that. Has anyone here done that job that can help me?
Of course, your help and advice will be most appreciated.
It’s on top of the passenger side fuel tank. Tank has to be dropped to get to it, assuming they are actually talking about the pressure sensor and not one of the evap solenoids.
if they’ll do it for 2 hours of labor tell them to put it in writing and go for it. By the book you’re supposed to drop the drivetrain out of the way, then the fuel tank. The crossover tube between the tanks is a royal pain to get apart and back together with the transmission in the way.
Last edited by schpenxel; Mar 10, 2020 at 10:51 PM.
yeah the manual is supposedly not bad to reach the cross over tube fittings.... I think the auto trans makes it damn bear impossible with out lowering the cradle... get that two hours inn writing and you'll make some people unhappy lol
I mean I've done it in the driveway without dropping the drivetrain, but I have a manual transmission. It's more difficult on A6's, less room. It's doable but a pain. There are some pretty good YouTube videos on it
I still say let the dealership do it if they'll commit to 2 hours of labor
I mean I've done it in the driveway without dropping the drivetrain, but I have a manual transmission. It's more difficult on A6's, less room. It's doable but a pain. There are some pretty good YouTube videos on it
I still say let the dealership do it if they'll commit to 2 hours of labor
I just bought the Corvette. When test riding it I saw the check engine light and asked about it. The owner showed me the dealer quote for the sensor and diagnosis and labor time. I figured it could not be such a big deal and that I could by the sensor and replace it myself. Seems I was wrong about that. The dealer that quoted that price is a couple hour's drive away, so it won't be practical to go there to hold them to the service quote.
It's crazy that GM did not design the Corvette with some kind of access panel it the top of the tank, so those parts could be easily replaced if need be, instead of requiring a lot of labor to drop the tank...
if the dealer is 100 miles away and they'll honor an extremely low quote for the repair it's an option, I'll stop trying to help you now.. also you bought the car knowing it had the problem so there's that
if the dealer is 100 miles away and they'll honor an extremely low quote for the repair it's an option, I'll stop trying to help you now.. also you bought the car knowing it had the problem so there's that
Yes, I know I purchased the car knowing the check engine light is on. I do not need to be told that, thank you. And there/s no need to be offended by my reply. My intention was not to offend, and it never is or will be intended to offend anyone.
And yes, if that dealer quoted the labor of two hours to do the job, it's an option. I'll check locally first to see if there is a difference. Thank you for responding, once again.
What is the code exactly? I've honestly never seen one of those sensors fail but of course it's possible. There are some evap solenoids back in that area that go out pretty regularly but are much easier to change. Just wanted to be sure that is the issue before you go into fixing it
I don't disagree with the person that said it'd be cheaper to get AAA to tow your car to the dealership if they'll actually honor the quote for 2 hours. You don't seem to be interested in doing that, so that's fine
Personally, assuming it is the fuel tank pressure sensor, I'd disable that code in the tune and forget about it, but I know a lot of Corvette owners don't like that sort of thing (no offense). It's 100% only used for the emissions systems, it has nothing to do with actual fuel pressure or how the engine runs, etc. But that's just me. I guess since you'd have to pay someone to do the tune changes (probably $200 or so) that would probably make this whole idea less appealing.
If you can post the code # we can at least be 100% sure that's what is wrong before you do any major work.
Last edited by schpenxel; Mar 12, 2020 at 12:58 PM.
What is the code exactly? I've honestly never seen one of those sensors fail but of course it's possible. There are some evap solenoids back in that area that go out pretty regularly but are much easier to change. Just wanted to be sure that is the issue before you go into fixing it
I don't disagree with the person that said it'd be cheaper to get AAA to tow your car to the dealership if they'll actually honor the quote for 2 hours. You don't seem to be interested in doing that, so that's fine
Personally, assuming it is the fuel tank pressure sensor, I'd disable that code in the tune and forget about it, but I know a lot of Corvette owners don't like that sort of thing (no offense). It's 100% only used for the emissions systems, it has nothing to do with actual fuel pressure or how the engine runs, etc. But that's just me. I guess since you'd have to pay someone to do the tune changes (probably $200 or so) that would probably make this whole idea less appealing.
If you can post the code # we can at least be 100% sure that's what is wrong before you do any major work.
The invoice for the sensor reads as follows:
C Check Engine Light On
330 Needs Fuel Tank Pressure Sensor Estimate $275
7 CP 0.50 Net 45.00 Total 45.00
The guy said the dealer said the sensor is $45 bucks and two hours labor to change it. He showed me the invoice, which I have. That's all I know.
I've done a lot of work on cars in my life, and figured maybe I could do it for the cost of the part. People are telling me the labor estimate is way off, and the tank needs to be dropped to get to the sensor. I understand that is a very difficult and time-consuming job, which requires dropping the cross member and transmission. That's not for me. I almost declined buying it when I saw the check engine light on, but figured it may be a simple fix. I guess I was wrong.
agree, the fuel tank pressure sensor does not affect how the car runs. The light is annoying. I suppose I could try to remove the bulb behind the instrument. But that's probably a big job too.
Thank you for the detailed response! It was very helpful and enlightening.
If you have a manual transmission it can be done without dropping the transmission. I've done it in an afternoon, but it involved a lot of cussing. Look at some videos on YouTube and see if it seems like something you'd be up for. But I can honestly probably drop the drivetrain down a foot or two just as quickly these days... you'd be surprised how little holds them together
I cut the hump out of my car so I can access the crossover from above. Fittings are still a pain but at least it’s doable
I haven't gone quite that far (yet), but I have cut 3 holes and drilled a few more in the tub for other reasons on my DD. I certainly wouldn't hesitate to cut enough out to replace that sensor if needed. Water never gets high enough to get the bottom of the tub wet. And yes, I do drive in the rain.
I cut the hump out of my car so I can access the crossover from above. Fittings are still a pain but at least it’s doable
I did think about cutting an access hole. I did look briefly to see about doing that. That would likely bring about a whole new set of problems. Thanks for your response. It is a good idea. GM should have done that.
I haven't gone quite that far (yet), but I have cut 3 holes and drilled a few more in the tub for other reasons on my DD. I certainly wouldn't hesitate to cut enough out to replace that sensor if needed. Water never gets high enough to get the bottom of the tub wet. And yes, I do drive in the rain.
If one could precisely locate where to cut a hole to access that sensor, it's a good idea. Making a cover and sealing it up would not be all that difficult. Thank you for the response.
Fuel tank pressure sensor
