Gas leaking from manifold exhaust

Tiny
SCOTTQBERRY
  • MEMBER
  • 1994 CHEVROLET S-10
  • 4.3L
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 130,000 MILES
The truck is very sluggish when I throttle up to speed it almost feels like it's flooding. I do smell gas.
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Wednesday, June 22nd, 2022 AT 3:07 PM

3 Replies

Tiny
JOE F
  • EXPERT
Hi,

If you have a fuel leak, that can be dangerous, so we need to get things fixed.

Where do you see fuel leaking, at the intake manifold or the exhaust manifold? If the exhaust, I wouldn't run it until it's fixed.

Also, have you experienced a misfire, and have you checked your fuel pressure?

Let me know. However, I want to start by scanning the computer. This vehicle has an OBD1 system that doesn't require a scan tool. All you will need is a short jumper wire or even a paper clip. Follow the directions in this link and let me know what is found:

https://www.2carpros.com/articles/buick-cadillac-chevy-gmc-oldsmobile-pontiac-gm-1983-1995-obd1-code-definitions-and-retrieval-method

Do this and let me know the results.

Take care,

Joe
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Wednesday, June 22nd, 2022 AT 5:51 PM
Tiny
SCOTTQBERRY
  • MEMBER
Thanks Joe. I think it's leaking where the headers attach to the manifold, and I will get you the code. Any good guess what is causing it to do this?

Scott Q
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Wednesday, June 22nd, 2022 AT 7:41 PM
Tiny
JOE F
  • EXPERT
Scott,

If it's leaking near the headers, that is a concern because it could easily start a fire. Also, when you say headers, which is what usually replaces the exhaust manifold.

Do me a favor. Upload a couple of pics where you feel it is leaking so I can see it.

Take care,

Joe
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Wednesday, June 22nd, 2022 AT 8:32 PM

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