well i did a compression test the other day and it was 210 across, it use to be 215 across, but for some reason it dropped 5psi, then i did it again today and its 215 in 1 and 2 and its 210 in 3 and 4, that seem strange? its done this to me before well kinda, one day i did a comp test and it was 210 across and then tried it again the same day after a lil while or the next day and it was back to 215 across, very weird to me.

 

i would look at the compression tester and a minor difference in testing for your problems.

as long as your within 5-10% your all good.

 

well i dont have anyone to hold the tester so i let it rest on my strut bar

 

maybe the diff in heat in your engine ??

 

did you crank the same amount of times and did you do it with the plugs in or out? makes a difference...

 

not really sure, its just weird to me, yea i cranked it the same amount of times, just weird how it changes sometimes or go back to wat it used to be.

 

any other ideas