Posted 04 March 2016 - 11:44 AM
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Posted 04 March 2016 - 12:06 PM
Any other symptoms to go with? AWD or FWD? The OSS/TSS sensors in the transmission could be starting to give, causing that jerkiness while driving. Clogged/leaky fuel injectors from dirty fuel or Edge sitting around too long can also cause the symptoms in their early stages. One or more coils starting to go, eventually creating a need for PCM repair/replacement.
Is there any damage to the underside of the body (under the passenger compartment)? That might be hiding a damaged EVAP canister. With any luck, if there IS an EVAP issue, it's the purge valve located on the firewall, very easy to replace, not very expensive.
So your fix might be any/combo/all of these things:
- Replace the OSS/TSS sensors (good time to do transmission 3x drain & fill; if fluid has no debris, flush next time)
- Run fuel injector cleaner through the tank (Techron or BG 44K recommended for best results). Fuel system dryer like HEET might also work, but would want to run cleaner afterwards anyway.
- Clean the Throttle Body (do not use carburetor or brake cleaner, use MAF sensor or electronic parts cleaner)
- Replace the EVAP purge valve
- Replace coils & repair/replace PCM
Posted 04 March 2016 - 02:36 PM
Posted 04 March 2016 - 05:11 PM
Number two coil failing? seems to be the main culprit with miss fires sometimes mostly I believe due to the higher heat area that it must survive in.
- sarchibald85 likes this
Posted 05 March 2016 - 04:29 PM
My guess would be a coil issues as well. They were all handled when the plugs were replaced. When you pulled the plugs you moved a couple yet again, and it seemed to go away. If you are going to throw parts at it, try replacing the two you touched. I have replaced a number of plugs on different vehicles in the past 5 years and the gaps were all correct.
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