What causes a car to hesitate and backfire?
big_deezy asked:
I have a 91 jeep cherokee 6cyl and fuel injected, i have tried using fuel injector cleaner but hasnt stopped. During acceleration the car hesitates and backfires. What would cause this?? What would I need to fix?
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I have a 91 jeep cherokee 6cyl and fuel injected, i have tried using fuel injector cleaner but hasnt stopped. During acceleration the car hesitates and backfires. What would cause this?? What would I need to fix?
http://www.prohomeschool.com/blog/
July 12th, 2009 at 7:09 am
Best look into the ignition timing. The only other thing to look for is low fuel pressure. A lean mixture takes longer to burn and could cause backfiring.
July 15th, 2009 at 5:01 pm
Many things like cracked or wet distributor cap, bad fuel injetor, burnt or chiped valve, bad spark plug wire and on and on. need a mechanic to look at it and or drive it.
July 17th, 2009 at 3:16 pm
could be dirty points in the distributor head,take of the distributor and clean the points,and or sparkplugs
July 19th, 2009 at 12:39 am
A clogged fuel filter or low fuel pressure could cause this.
Change the fuel filter and check the fuel pressure.
Also check the distributor cap for carbon tracking and plug wires for arching.
It could be any number of senors and/or a plugged catalytic converter.
Check the ignition timing to.
This vehicle has no ignition points.
July 21st, 2009 at 6:10 pm
sounds like the mixed up the spark plug wire blues,
July 21st, 2009 at 6:14 pm
it could be out of time.put a timing light on it and see.
July 22nd, 2009 at 7:20 pm
sparks are dirty wrong fuel timings out to much carbon in the exhaust from a block in extractors list goes on good luck