Question about 1998 GMC Jimmy
I was driving home from school, got off the highway, came to a stop at the light, and the Jimmy just died. No sputtering or anything. First thoughts were fuel exhaustion... Maybe someone syphoned the fuel out of my tank? A cop pushed me across the intersection and into the gas station where I added 10 gallons of fuel which means there was still 8 in the tank. Got towed home and went to work on it the next morning. We listened for the fuel pump to engage but are unsure what to listen for, which makes me think that is the problem. Checked the spark plugs for spark, good. Replaced the fuel filter. It's still just turning over but not firing up. Gonna try to listen for the fuel pump again this morning and go get a fuel pressure gauge. Also, we checked the fuse box and did the poor man's test by switching the Fuel Pump fuse with the Horn fuse which were identical. The horn worked with either fuse. Is that an valid test? Any more ideas?
Your on the right track with the fuel pump test, chanses are its the pump thats went out. its best to have two people one to turn key and one to listen out side of car, the best way to hear if it runs. Now don't be fooled just because you hear the pump it can run and still not put out any pressure, thats ware the test comes in.
Posted on Feb 09, 2009
Can I ask WHERE is the fuse that you said you checked, I can not find a fuse anywhere in my 1997 Jimmy, Checked all the markings on the fuse cover that is on the end of the dashboard, None says fuel pump, Although all of the fuses are checking to be good, there is no marking on the cover that says fuel pump, Where is the fuel pump fuse in my 1997 jimmy .?????
Posted on Dec 05, 2011
First check the fuel pump relay located in the glove comparment, you can switch with another one, they are the same. It that does work, Stand outside the drivers door, turn key on and listen in the rear left panel and you will hear a humming for about 2-3 seconds, thats the fuel pump. Sometimes it may hum but not have enough pressure, which will cause the car not to start.
Posted on Feb 25, 2009
There usually is a way to relieve the pressure in the fuel line. Look on top of the engine near the plenum , look for aluminum tubing and it will have hidden back there somewhere a stem, that looks like a tire valve stem. There is even a cap on it that looks like a valve cover stem. Take the cap of and depress the plunger with something small, as if you were letting out air of a tire, except it will be gas.
Posted on Apr 22, 2009
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Posted on Jan 02, 2017
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