Question about 1988 GMC Jimmy
Just replaced plugs rotor and cap wires were replaced a year ago why does my truck 1988 gmc jimmy want to stall out if i dont hit gas all the way to the floor
Timing may be off adjust the cap. A timing light will help in this situation.
Posted on Nov 27, 2012
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Posted on Jan 02, 2017
SOURCE: 1995 GMC JIMMY
I had a problem just like that on my blazer and it turned out to be the wire harness on the fuel injectors. It could also be your fuel injectors, had to replce mine at 85000
Posted on Aug 04, 2008
SOURCE: no power when hit the gas
The fuel presure should be at least 60- 66 psi key on engine off, and then drop some when started, if it doesn't go any higher than 50 psi that would explain your backfire concern. If it is low then the fuel pump is weak. I have also seen soot on the little wires inside the Mass Airflow Sensor cause a concern like this.
Posted on Nov 18, 2008
try the oil pressure switch, that was a common problem on Gm trucks when I used to work on them, the oils switch was bad and woulden't allow it to start and the ones I worked on were on the back of the distributor.
Posted on May 29, 2009
Did you check the timing?
Mine would idle rough and hesitate. I replaced all kinds of parts before finding out it was a bad ECM (computer) I found a used one for 50 bucks or so that fixed it.
Posted on Apr 19, 2010
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