tommyv

ok well thanks for your help. But if it was a dropped valve wouldnt i have no compresion at all? cause it did have 50psi

HG have never been replaced that i know of. car has 130,00 miles. one mechanic told since it is the num 3 cyl. it may have some thing to do with the fuel presser reg. that it may be washing the cyl. does that make any sence.

I have a 98 subaru outback legacy 2.5 dohc engine shakes bad at idle i pulled plugs one at a time they all made difference except #3 cyl. checked compresion all good exept #3 in was only 50. goin down the road or accelerating it seems to run fine but mpg dropped big time. does anybody have any clue that could help me out.