Can the coil packs fail from too much moisture

[Jake Raby]

Originally Posted by edevlin

"By 60K engine mounts are dead, at least 1/2 of the lifters are collapsed, vario- cam chain tensioner pads are delaminated, coil packs are cracked and the water pump bearings are history."

I'll order coil packs and o-rings (in case I have leaks in tubes) and stick them in next week. I hope that fixes the rough idle and that its not the MAF sensor, which I also suspect. BTW, is there any liability with running the car with dead engine mounts?

Ed

A dead engine mount places stress on the other components that are connected to the engine and tranny.. And it makes for a nasty transition on and off the clutch with a nasty bump between shifts.

The rough idle can also be a cracked intake manifold or vacuum hose. I see more and more cracked intakes.

[edevlin]

"If coil packs have more than 30K on them, replace them as a failure is imminent."

I replaced mine along with plugs, fuel filter and AOS this weekend and I was impressed by their condition, it was bad. I think only one of the six coilpacks that did not have cracks and large cracks on them in several places. Funny thing was the car was running pretty good except for rough idle (probably vacuum leak).

So, I have a question about how smart our ECU's are. Do the ECU's need to readjust to the addition of new plugs and coilpacks. My old plugs were only a year old, but the coilpacks were the original (90K). The car is running fine now, but seems like it is not quite as quick (quite subjective) as it was before swapping out parts this weekend. That is why I am wondering if the ECU is adapting. BTW, if its not clear already, I know just enough about this stuff to be dangerous....


Ed

Wouldn't say that replacing coil packs past 30K is necessary as "failure is eminent," as we've seen plenty of cars with 60k-80k on original coil packs doing just fine, but if the plastic casing is cracked, then yes, failure will come sooner than later. It's less an absolute mileage item and more a time sensitive item which is heavily influenced by the environment the item is in.