1996 GMC Sonoma Q&A
1996 GMC Sonoma Question: gas smell
Check for leakage around the top of the fuel tank, look for staining around fuel line fittings and hoses including the gas filler tubing and vent line to the filler. I assume you're talking about when the vehicle is sittingstill not running. If you mean when it's running, check for the engine warming up properly and check for misfire. Also look for fuel leakage arouund the intake manifold and injectors. - Superbob
Is your check engine light on? Your 1996 GMC Sonoma should set an EVAP code and turn the check engine light on if there is a fuel leak as severe as you describe. Without any special test equipment you will need to visually check to see if you can isolate the cause of the leak. See if you can tell if the smell is worse in the front or the rear and then begin there. Visually inspect all the fuel system components beginning where the smell is the strongest. The fuel system components are generally pretty well exposed so have a look and see what you can find. Fuel is most likely not dripping but you may note a wet spot at the source of the smell. - Oakman
i have a 1995 GMC Jimmy and have the same problem. It is probably your spider fuel injector which is located under the exhaust manifold on the drivers side. When your injector starts to go out, your truck will run ruff and hesitate when accelerating, sometimes stall. Mine still runs but is ruff, and smells like pure gasoline. That is what is wrong with mine. -Brandon Ballasso Jax,Fla. - Visitor
air filter smells alot like fuel looks damp with it
Vehicles using the enhanced vortec V6 engine may be hard to start run poorly and/or use to much fuel due to a fuel leak inside the intake manifold plenum. Commonly this is caused by a leaking ...
started on freeway loss of power. then at stoplight when I gave it gas died. Wouldn't restart unless foot to the floor and then was ruff. I have been thru ignition system all new parts and reset to...