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1996 GMC Jimmy - Page 10 Questions & Answers
Fuel pump not working
You may have a defective ignition starter switch, it is common in this year. When the switches go bad you loose power to the fuel pump circuit that power the relay.
My 1996 4.3 liter gmc jimmy wont start and i have a weak spark, I changed the coil and driver along with the crank and cam sensor. I also changed the vcm and still it has a weak spark,
HelloThe engine
and automatic transmission in this vehicles drive train
are fully electronically controlled by a computer called the PCM and
TCM (Power Train Control Module, Transmission Control Module). When a
problem like this or other drive-ability related problems occurs the
computer stores a record of the problem (there are of course some
exceptions to this, like the fuel pump, engine coolant temperature
sensor and MAF sensor for instance) in the form of a fault code in
its memory, to read these fault codes you must have the systems
memory scanned with a special tool. Once the fault code(s) are read
you then must perform the appropriate diagnostic testing to find and
resolve the problem(s) DO NOT REPLACE ANY PARTS UNTIL
A TRAINED TECHNICAIN HAS DIAGNOSED THE PROBLEM TO AVOID SPENDING YOUR
HARD EARNED MONEY ON PARTS THAT MAY NOT CORRECT THE PROBLEM
Why wont my 1996 4.3 gmc jimmy start?
might be ecu fault are there any engine managment lights on dash is there defo fuel getting to engine can you here the pump running just incase its a duff pump if its totaly drained the fuel line it would take a bit to get the fuel to the engine any way
How do you know when a tesion pulley goes bad
Shannon, sometimes the spring will break , sometimes the pulley will come off, but most times the bearing will begin making a roar or grinding sound from lack of lubrication. Hope this helps.
Rattling front end
Ethan, I would put it up on a lift and check for anything loose ,like shocks,sway bar mounts & connectors,A-frame bushings etc. Hope this helps
Fuel pump keeps running after engine starts
It could be the problem. The old wire may have been delivering less voltage than the new wire. Now that the wiring is good, too much voltage is going to the feulpump regulator. You need to have the fuel pressure checked.
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