Fuel leak
Thread Starter
Pro
Joined: Dec 2005
Posts: 535
Likes: 2
From: Shorewood Illinois
Fuel leak
Hi all:
Got my first real problem with the Vette. I know I've got a fuel leak (strong smell, distance to empty decreasing faster than it should be). I pulled over and couldn't spot the problem by pulling the engine covers, and there was nothing dripping underneath.
With some of the recurring problems Vette's have, is this another one? Is there a common place for these to leak? I'm thinking its in the fuel line somewhere since I parked it when I got home and the smell eventually went away (I'm thinking that the leak depressurized the lines).
Any insights would be great.
S
Got my first real problem with the Vette. I know I've got a fuel leak (strong smell, distance to empty decreasing faster than it should be). I pulled over and couldn't spot the problem by pulling the engine covers, and there was nothing dripping underneath.
With some of the recurring problems Vette's have, is this another one? Is there a common place for these to leak? I'm thinking its in the fuel line somewhere since I parked it when I got home and the smell eventually went away (I'm thinking that the leak depressurized the lines).
Any insights would be great.
S
Burning Brakes
Joined: Jun 2005
Posts: 860
Likes: 0
From: Jacksonville Florida
Originally Posted by Scatterbrained
Hi all:
Got my first real problem with the Vette. I know I've got a fuel leak (strong smell, distance to empty decreasing faster than it should be). I pulled over and couldn't spot the problem by pulling the engine covers, and there was nothing dripping underneath.
With some of the recurring problems Vette's have, is this another one? Is there a common place for these to leak? I'm thinking its in the fuel line somewhere since I parked it when I got home and the smell eventually went away (I'm thinking that the leak depressurized the lines).
Any insights would be great.
S
Got my first real problem with the Vette. I know I've got a fuel leak (strong smell, distance to empty decreasing faster than it should be). I pulled over and couldn't spot the problem by pulling the engine covers, and there was nothing dripping underneath.
With some of the recurring problems Vette's have, is this another one? Is there a common place for these to leak? I'm thinking its in the fuel line somewhere since I parked it when I got home and the smell eventually went away (I'm thinking that the leak depressurized the lines).
Any insights would be great.
S
EDIT:
Ok, did some research and there are a few common leakage points for the C5:
First is the fuel filter. It's located near the fuel filler neck area and tends to crack/leak/wear over time. Second is the fuel filler neck. Apparently the top where it joins the actual metal has a seal ring that also wears over time and can cause leakage. Third is the fuel cells themselves. There is a common cracking/leakage point at the "straddle" connector that joins the two tanks. And finally the thread I was referring to had a loose spark plug as the culprit. Apparently the fuel smell was coming from the area of a particular cylinder with no underhood leakage detected. GM tech traced it to loose sparkplug. I guess a lot depends on where your smell is coming from.....
Last edited by Bounty; May 29, 2006 at 04:01 AM.
Burning Brakes
Joined: Feb 2005
Posts: 1,230
Likes: 14
From: Mandeville Louisiana
I am having this issue, I know what mine is tho. it was 2 things the gas tank on the drivers side where the fuel pump comes out was leaking, and the very front injector 0 ring was leaking.
Burning Brakes
Joined: Jun 2005
Posts: 860
Likes: 0
From: Jacksonville Florida
Originally Posted by brandon1566
I am having this issue, I know what mine is tho. it was 2 things the gas tank on the drivers side where the fuel pump comes out was leaking, and the very front injector 0 ring was leaking.
Good suggestions to look at. Steve, remember you can have the system pressure tested and that should eliminate injectors, fuel rail, and pump as possible leakage points. Hope this helps....
Thread Starter
Pro
Joined: Dec 2005
Posts: 535
Likes: 2
From: Shorewood Illinois
I can't believe you guys are awake!
At least I'm supposed to be working. Doesn't anyone sleep anymore! Thanks for the tips, I'm pretty sure I should be able to get a bead on this bugger this morning after some sleep. Someday (hopefully soon) I'll figure out the search function.
Glad the wheels worked out for ya, definitely send a couple of pics. I'll post the results of my efforts here as well in the hopes it helps someone else.
Thanks again guys...
S
Glad the wheels worked out for ya, definitely send a couple of pics. I'll post the results of my efforts here as well in the hopes it helps someone else.
Thanks again guys...
S
Thread Starter
Pro
Joined: Dec 2005
Posts: 535
Likes: 2
From: Shorewood Illinois
Update
No leaks in the engine compartment. Checked all the injectors and the plugs (changed the plugs and wires while I was there), and nothing. One last thing I did before calling it a night was to press up the system and take a look underneath.
Not really surprised, but there's a steady drip coming from the center area, in front of the rear transaxle assembly. I thought the fuel filter was on the drivers side. Is there a fitting up between the two tanks?
Little help here would be great. Thanks again guys!
S
Not really surprised, but there's a steady drip coming from the center area, in front of the rear transaxle assembly. I thought the fuel filter was on the drivers side. Is there a fitting up between the two tanks?
Little help here would be great. Thanks again guys!
S
Burning Brakes
Joined: Jun 2005
Posts: 860
Likes: 0
From: Jacksonville Florida
Originally Posted by Scatterbrained
No leaks in the engine compartment. Checked all the injectors and the plugs (changed the plugs and wires while I was there), and nothing. One last thing I did before calling it a night was to press up the system and take a look underneath.
Not really surprised, but there's a steady drip coming from the center area, in front of the rear transaxle assembly. I thought the fuel filter was on the drivers side. Is there a fitting up between the two tanks?
Little help here would be great. Thanks again guys!
S
Not really surprised, but there's a steady drip coming from the center area, in front of the rear transaxle assembly. I thought the fuel filter was on the drivers side. Is there a fitting up between the two tanks?
Little help here would be great. Thanks again guys!
S
Thread Starter
Pro
Joined: Dec 2005
Posts: 535
Likes: 2
From: Shorewood Illinois
Fuel leak - another update
Found the leak at the inlet to the fuel filter. Changing the filter solved the problem. One other question - the RANGE on my DIC (hold the jokes please) keeps decreasing, slightly more than I thought it would on my test drive. Could this be because it's figuring out that I lost a few cups of fuel during the filter change? There was no problem with the change, the strong gas smell is gone and there's no evidence of a leak now. Let me know what you think.
One more thing, I finally figured out how to use the search function, and used the directions found here to change the filter. The only difference was that I didn't need the fuel line disconnect tool. Both sides of the filter had the little blue clips. Hopefully this will help those with a '98.
S
One more thing, I finally figured out how to use the search function, and used the directions found here to change the filter. The only difference was that I didn't need the fuel line disconnect tool. Both sides of the filter had the little blue clips. Hopefully this will help those with a '98.
S
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Instructor
Joined: Jan 2004
Posts: 155
Likes: 0
From: cresson tx
Wife mentioned a decrease in gas mileage and an odor of gas this past friday. Sure enough there is a gas leak. Seems to be localized only on the driver's and to the rear.
Starting the troubleshooting process ...
Starting the troubleshooting process ...
