Recent content by tryamu

Originally Posted By: qdeezie If it's a valve stem seal, there are tools that can be used to change it out without having to remove the head. I found it seaching for how to. Looks kind of tight fit. Not much room but possible.

Originally Posted By: Trav Time to do a leak down test. 110 psi seems low, I would expect 180+-15 or so just guessing. Throttle open, engine warm? Thanks, I will check ! No. Just a quick test. Not fully open , but warm.

Originally Posted By: Oildudeny Looks like that exhaust valve can't keep up with the 2 intake Thanks, Interesting idea. Guess the onley thing to do is start pulling it apart.

Originally Posted By: WyrTwister If it is a valve seal , should be cheaper than rings . Any chance it is still under Warranty ? Best of luck , :-) Thanks, Hope its not a rebuild case. No. No warrenty.

Thanks, I was confused of the even compression test as well.

Thanks, I am thinking of valve stem but do not know for sure. Guess all the oil and carbon do bad things for the combustion. The plug was not easy to remove, so the earlier owner did not mange to get it out. I did use a different tool. Should be the same.

Hi you all, Ford Expedition, 2005. Oil, carbon build up cylinder number 2 spark plug. What could the reason be? 95k miles, feels week. Just like running on 7 cylinders not 8. Plug tested using a snow mover engine checking for spark. Ok. accel Coils 0.9-1 ohm. 0.045 plug gap. Tried a simple...