2000 3.0L Valve issues
We have a 2000 3.0L (280K miles) and we replaced the heads (remanufactured) about 40K miles ago. The valves seats appeared to have moved down and lost their fit. The valve landings looked great. We replaced the heads with remanufactured and the truck ran great.
Now, 40K miles later, the truck is running bad again and one mechanic (a friend) is telling me we have low compression on the 1,4, &6 cylinder. He checked and is sure the valves are not sealing. He says we have 50 pounds and 35 pounds of compression on those cylinders. The engine is running rough, better at higher RPM of course.
Previously, my son brought this truck to the dealer and they said he needed the injectors cleaned (we had already done thisa few months back, prior to him taking the truck to the dealer. (We used the super duper Ford injector cleaner system)) More info... It was this same dealer that identified the valves leaking previously and they were correct (when we replaced the heads). I find it a odd that that same dealer did not identify the valves leaking, low compression, this time. So we are at odds on what to do. The work...I don't care about, I'll do the heads again, but I'll surely be a tad testy if I pull these heads and there is nothing wrong. I think at the least, I'll get our compression testor from work and check them myself.
My concern is... I heard there was a problem with 3.0L engines having valve seat issues. It think a failure in such a short time is cause for concern and it makes me a bit apprehensive in going into the engine unnecessarily. If I fix this thing again, can I expect more of the same. Is there an issue I should be aware of ?
Any thoughts or comments are welcome and apprecaited.
Sorry for being long winded but....the more information the better.
Last edited by Sky King; 06-03-2009 at 08:15 PM.