So, I've had my truck since November, after having it 3 weeks it felt like the hampster fell off the wheel, no power, running very rough and SES light on. nursed it to the dealer and found out a coil pack was bad. $300 later it seemed to work ok. No, last night, 6000km later it feels like the same thing again.

I've heard rumors that these things are common failures, especially in the damp but this is rediculous. So right now the truck sits back at the dealer waiting to get looked at.

My questions are:
1) Does anyone else suffer from this?
2) Does anyone recommend a cheaper alternative than buying coil packs from the dealer?
3) How would I diagnos which one was bad?

Thanks!

btw, on top of that I somehow lost my wallet last night, isn't life grand!

 

Sorry about your woes. Coil pack failure is common but often caused by other issues. Water in spark plug bores is common. It's easyer to change coils. Many opinions here about which ones are best Try unplugging each coil-one at a time- with engine running until you find one which doesn't is have much/any affect on engine - there's the culprit. If you replace it, this is a good time to replace all spark plugs. Using dielectric grease on the plug/coil connections will help preveent further problems. Maybe even replace the boots at this time.

 

Try unplugging each coil-one at a time-with engine running til you find one that does litlle or nothing to engine. That's the culprit. Easy to change it. If spark plugs are not new-replace them (a common cause of coil failure). Also check for moisture in spark plug bores (common cause of misfire and coil failure).If you find any moisture in the plug bores, consider replacing the plug boots as well.

I didn't think the first post worked,lol.

 

As it turns out, it was "cyl #8 misfire" caused by water in the plug hole. The plug was quite rusted they said. I don't understand how water could have gotten in there and stayed long enough to cause that problem and not evaporated off.

Is it a big job to change the plugs on these trucks?