My Ford Taurus SHO 3.4 liter sedan is not getting fire to the 3, 6, 7, and 8 coil pack. My test reading are PO353, 356, 357 and 358. I have changed all coil packs and spark plugs and check to see if the coil packs are firing off and they are. what should i do next.
Have you checked the plug wires? Are the spark plugs Motorcraft and not Bosch? If they are Bosch replace them, those plugs have been known to come apart inside the engine. Check the coil wiring loom for any rubbed through places in the engine compartment.
those are primary coil ckt failure codes,follow coil loom back to big connector at engine ck for pins pulled out of connector,possible coil driver ckts in pcm are bad,hope this helps
3 6 7 8 ,this is a v-6 wouldnt trust those codes
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