2000 JIMMY

2000 GMC JIMMY
6 CYL • 2WD • AUTOMATIC
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KCFANZ
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  • 3 POSTS
Hard to start in the cold for a bit now. Then no start at all. Later the same day it finally started up with the help of a battery charger,but then it wasnt the same car as it was when we parked it the night b-4. Code P0300 Rapid mis-fire.Fuel pressure on rail within specs 11.9 ohms on each F-Injector, New tune up Even timing chain, Cleaned intake and plenum, still runs with mis-fire at low idle.Runs like a champ on free way now. Alot of power now after the tune up.Butt still misfires :(
Dec 14, 2010 at 9:38 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
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RASMATAZ
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 75,992 POSTS
Go to this link: https://www.2carpros.com/articles/engine-misfires-or-runs-rough
Dec 14, 2010 at 9:55 PM
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KCFANZ
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I have heard that the ball valves on the injector fail, could this be my issue? How do i check the ball valve?If the injector opens and gets heard how can you tell if the fuel is making its way out?
Dec 15, 2010 at 12:16 AM