"06" 4.0L Intermittent P0352

[mumgow]

I did have an intermittent P0300 but turned out that when I changed spark plugs I was given the wrong ones.
My bad for not checking before I installed them. That code cleared out after putting in the right ones. But after I took my next trip and after it had warmed up going some 50 mi. It hesitated and came up with P0352. It only happens a few times then runs fine. After a while the code clears itself. I've driven 10 mi. to town, gone shopping, start home and it will act like it's misfiring a couple of times then clear up. Always happens after it has warmed up and is intermittent. Any ideas?

 

[Beachcomber86]

Probably not the cause, but before you take it and have the coil packs checked, do the following.

Check the wiring at the MAF, throttle body, distributor, and fan for cracked / worn away insulation. If it is there, repair that and see how things go.

Found my ghosts in the machine

 

[mumgow]

Have had wiring harness replaced because of too many shorts from cracked insulation and upgraded the coil pack. Also new plug wires.