VEHICLE STARTED LOSING POWER AT TAKE OFF AND LOW...

1994 GMC Jimmy

Tiny

wolfyp69

December, 10, 2012 AT 11:13 PM

Vehicle started losing power at take off and low speeds. When I stopped to check it out the was a fuel odor and fuel in the oil. What could be the cause for this?

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3 Answers

Tiny

JDL

December, 10, 2012 AT 11:39 PM

If you have tbi fuel system, look to see if injector/s are leaking? Any visible gas leaks under the hood, under the vehicle? Check the pcv system.

Sometimes you can smell gas, undewr the hood, if there is an issue with evap system.

How long since a tune-up? Any applicable mil codes?

Tiny

wolfyp69

December, 11, 2012 AT 12:07 AM

Its a multiport injection system The gas smell seems to becoming from the exhaust and from the oil which was about a quart over when I checked it.

Tiny

JDL

December, 11, 2012 AT 1:17 AM

You can use a fuel pressure gage. See if pressure will hold for bit, everything off. Check the vacuum line for fuel pressure regulator, any gas in it?

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