1999 GMC Jimmy "2 engine lack" Questions

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2 minutes afer starter car engine ligth come flasher and code p0300 P0300 Random/Multiple Cylinder Misfire Detected This is sometimes a symptom to a clogged fuel filter or fuel line. When was the last

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...engine does get hotter then 170 degrees F check for water in oil on dipstick. head gasket? head cracked? need more diagnostics and info. I was having a similar problem and where the more gas I gave ...

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...2 things that an engine needs to start. One is ...it has to have spark to the spark plugs to detonate the fuel fumes inside the cylinders. Check for spark by removing a spark plug the placing the ...

Question about GMC Jimmy

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...2 months old. I went ahead and changed it anyway. A new fuel pump cured the problem. Testing the MAF and the O2s is not going to tell you anything. A failure, an open or a short would set the check ...

Question about GMC Jimmy

1 Answer

...my email as fast as you did . sounds like wrong firing order of the cylinders. If you have the 4 cylinder engine the firing order is 1-3-4-2. Number 1 is the end of the engine the belts are ...

...2. Rough running after overheating is a sign of engine damage. Most often a warping of the cylinder head. This is also manifested by the lack of power and fouled plugs. Have your engine checked by a ...

Question about GMC Jimmy

1 Answer

...2: bad spark. 3: loss of fueling to one one or more cylinders. or bad compression. 4: leaking injectors. 5: ECU/PCM , in limp home and owner not using a scan tool to scan it and see why. and ignoring ...

Question about GMC Jimmy

2 Answers

...2 Misfire Detected Symptoms - Engine Light ON (or Service Engine Soon Warning Light) - Lack/loss of power - Hard start - Engine hesitation Possible causes - Improper spark plug at cylinder #2 - ...

...1, then 2, etc) If it drives OK with manual shift, then your trans is not shifting properly. If, however, the engine is still lacking power when shifting manually, there is a problem with the

...me,I had coil packs on my engine and one was not grounded,there 2 bolts in each coil pack and only one was the ground,I removed coil pack and cleaned and put a new bolt in and engine ran fine,Good ...

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