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I have replaced coil,wires,plugs,cap and rotor,fuel injectors and even water proofed my cap and rotor. WHY can't this misfire go away?
What makes this problem better or worse?
During Idle
How long has your 2003 Dodge Durango had this problem?
2 years
1 - 8 - 4 - 3 - *6* - *5* - 7 - 2
Possibilities > #6 - #5 plug wires crossed ......... No injector *pulse* ......... Vacuum leak **Hands-on** help from qualified personnel is likely required. Good luck!
Check for vacuum leak, nothing found. Wires are not crossed and replaced and tested all injectors
Ok - Do ALL injectors have a *pulse signal* from the injector driver module ??? Test with noid light. **Between the TWO posted answers you received here - the problem has ‘got’ to be found!!** Good luck with it!
I don’t have a noid light. I will see what I can do. I really don’t want to bring at to mechanic, I don’t have that kind of money. Do you know if I can rent a noid light? Thanks once again
Yes - parts store should have a noid light kit - pick the one that matches the wire connector .. While engine is cranking / running - noid light should flash steadily. An alternative is to take a VERY LONG screwdriver and use it as a stethoscope - put tip on injector - put ear on handle - should hear injector clicking while engine is running - listen to a couple that’s know to be ok so you’ll know exactly what to listen for .. IF injector is clicking - should be spraying fuel into cylinder. Noid light is just a lot easier. Be careful working around *rotating* engine / accessories!
Ok I will try that. But if there is no constant click what needs to be done?
Then it is no longer a diy repair! Seek out professional *hands-on* help.. This will take an experienced technician to determine the exact failure - there is no way to guide you through the troubleshooting flow chart here online.
Yes I have done a compression test. Good on all cylinders.