Question about 1995 GMC Sierra
There is gas getting in oil pan can smell it on dipstick and it reads over full
If you have white smoke emitted from the exhaust system that means youv blow a head gasket which lets anti freeze in the engine compartmen and sometimes fuel in the oil pan
Posted on Nov 27, 2012
It means your fuel system is pumping it into the cylinder and finding its way into the oil. Older vehicles with carburetors would do this when the carburetor floats would get stuck open and allow that to happen, but on later vehicle with fuel injections systems it kinda unheard of. But can happen. If enough gas has mixed with the oil to raise the oil level noticeably then this should not be that hard to find. And can be extremely dangerous situation. All it were to need is a ignition source and cause your engine to become a grenade. Take air breather off and look for fuel spilling into intake manifold. Should possibly see some puddles of fuel or something. There are not many fuel lines going from the tank to engine. Just check all of them. Hope this helps
Posted on Nov 28, 2012
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Posted on Jan 02, 2017
To check EGR valve, plug the vacuum hose to it, and it should not get hot anymore. It if does, it is leaking.
But gas smell is usually bad plug wire or plug.
With good insulation, remove one sparkplug wire at a time, to see if one has no effect. That is the target.
Posted on Jul 25, 2009
yes it is possible to have a failed injector. test pulse and then remove the rail, leave the injectors hooked up electrically and have someone turn the key on (prepare for fuel spray by disconnecting the ignition and covering the area with a protective cover to also prevent the risk of fires), and watch for the patern. you can also isolate the problem easier by when it is running, disconnecting the harness at the injector or plug wire and notice the engine change. the one that doesnt change, is your problematic cylinder. then test accordingly.
Posted on Feb 16, 2010
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