I have a 99 intrepid with a 2.7. it misses under load. codes were p0351 to p0356. changed plugs, leads and checked all coils. now I get no code and it still misses under load. no vacuum leaks....stumped
Sounds like he has misfires on all six cylinders according to the codes he provided. A single broken valve spring on one cylinder will not cause all 6 cylinders to misfire.
I got all 6 codes because I replaced all the leads to the plugs, had to unplug each coil. now I have no codes no engine lite but still have a miss. still stumped
Should have Champion Copper Plugs in there for a 2.7L
When you say replacing "Leads" are you talking about the springs under the coil packs? Did you use Dielectric grease under there? Otherwise could be shorting to ground intermittently.
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