Moisture on coil packs
02-20-2011, 05:21 PM
#1
2001 F150 5.4 Lariat
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Moisture on coil packs
Last week my truck started miss firing on the way to work. Assumed it was a bad coil pack again. I hooked it up to the computer at autozone had a miss fire in cylinder 5. When I pulled out the coil from 5 to switch it with #1 there was some moisture on the trunk of the coil pack in both cylinders. Is this something to be concerned about?
02-22-2011, 09:36 PM
#5
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Make sure your intake is not leaking, there are issues with the intakes on the 5.4's (not sure if this is what you have). They 'seep' coolant around cracks that form and pool in the spark plug holes. Not a cheap fix, the intake itself is $400.00 or so, so I hope its just condensation. They also said to check the air conditioning lines to make sure condensation is not dripping. I would lean toward coolant from the intake because it does not evaporate, leaving it on the boots for long periods of time....
02-23-2011, 09:37 PM
#6
