DavidGXP
Member
- Joined
- December 20, 2012
- Messages
- 11
- Reaction score
- 1
- City, State
- Renton, Wa
- Year, Model & Trim Level
- 1998 Ecplorer Sport
I don't post on here much, but I do spend a lot of time browsingB-)
My 98 explorer sport 4.0 ohv has developed a rough idle and finally popped a code for random missfires on 1 and 3. I pressure tested each cylinder at tdc and noticed bubbling in the coolant reservoir. My number 1 plug was cracked and number 3 was covered in oil. (Bad guide smokes at start up). What sucks is that I just carfaxed my truck and it's always been serviced up to 105k. I bought it with 126k and it now has 142k. I flushed the coolant and there was no trace of contamination and I also replaced the rocker arms/pushrods and noticed zero sludge. The engine looked brand new:'(
This was all done before the idling problem of course..
I just ordered new heads, gasket kit, and a delta RV cam. I am hoping that everything turns out nice. I am an ase certified tech so this should be a breeze.
My 98 explorer sport 4.0 ohv has developed a rough idle and finally popped a code for random missfires on 1 and 3. I pressure tested each cylinder at tdc and noticed bubbling in the coolant reservoir. My number 1 plug was cracked and number 3 was covered in oil. (Bad guide smokes at start up). What sucks is that I just carfaxed my truck and it's always been serviced up to 105k. I bought it with 126k and it now has 142k. I flushed the coolant and there was no trace of contamination and I also replaced the rocker arms/pushrods and noticed zero sludge. The engine looked brand new:'(
This was all done before the idling problem of course..
I just ordered new heads, gasket kit, and a delta RV cam. I am hoping that everything turns out nice. I am an ase certified tech so this should be a breeze.
