cylinder 5 mis-fire, where to start?
#1
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cylinder 5 mis-fire, where to start?
Well my buddy Daryl pulled the codes from my 1996 Limited and apparently Cylinder 5 is misfiring. (92,000 miles)
Where would you guys start? Should I replace the plugs? wires? clean injectors?
thanks
Joe
Where would you guys start? Should I replace the plugs? wires? clean injectors?
thanks
Joe
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Doc Z....there are a number of hoses in this dam engine compartment, I checked them all over just to make sure, that there is no leak. Also the engine def runs funny....Rough Idle right off the start. Also when the Cyclinder 5 is disconnected....the Engine seems to be unaffected (i.e. still runs like crap) But when I pull a good Bank the engine gets even rougher.
Joe
Joe
#7
Joe,
Well, the fact that you can pull Cylinder #5 and it doesn't affect the engine indicates that that spark plug is definitely not firing.
Take the #5 wire and hold the end of it while the engine is running, with insulated grips of some sort, next to a ground source to see if you get a spark on the wire itself. That will rule out the wire at least if you get spark.
Also, if you have access to a multimeter, check it for continuity. If no spark and the wire has continuity, you can suspect a bad coil pack, although that is a rarity.
There are procdures for testing the coil packs. I'll fill you in on those after you perform the above tests.
Post back with your results.
G
Well, the fact that you can pull Cylinder #5 and it doesn't affect the engine indicates that that spark plug is definitely not firing.
Take the #5 wire and hold the end of it while the engine is running, with insulated grips of some sort, next to a ground source to see if you get a spark on the wire itself. That will rule out the wire at least if you get spark.
Also, if you have access to a multimeter, check it for continuity. If no spark and the wire has continuity, you can suspect a bad coil pack, although that is a rarity.
There are procdures for testing the coil packs. I'll fill you in on those after you perform the above tests.
Post back with your results.
G
Last edited by Dr. Zhivago; 08-29-2003 at 11:36 AM.
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