Compression test results
#1
Compression test results
Ok so my car throws a temporary misfire code and i can kinda feel it at idle. However it drives fine and has power even when getting on it. So today i did a compression test and here are the numbers i got.
(motor was ran for good 20 minutes to warm it up and did a dry test)
Cyl #1 220
Cyl #2 178
Cyl #3 240
Cyl #4 250
***EDIT: I did pull the 15amp fuel pump fuse under the dash, and i removed 1 spark plug at a time, and putting it back in after finishing that cylinder. Also WOT when cranking the car 8 times.***
So since i questioned cylinder 2 i tested it again and got 175psi on dry. Then i put a little oil in that cylinder and performed a wet test and got the #195psi. It did not significantly jump back up very high so im kinda stuck on thinking could it be more of a piston ring or a valve issue? I know i should do a leak down test, but i do not have access to a leakdown tester.
Curious to know if any s2k members could chime in with professional opinions, i would highly appreciate some thoughts.
Thanks
-S2kOutlaw
(motor was ran for good 20 minutes to warm it up and did a dry test)
Cyl #1 220
Cyl #2 178
Cyl #3 240
Cyl #4 250
***EDIT: I did pull the 15amp fuel pump fuse under the dash, and i removed 1 spark plug at a time, and putting it back in after finishing that cylinder. Also WOT when cranking the car 8 times.***
So since i questioned cylinder 2 i tested it again and got 175psi on dry. Then i put a little oil in that cylinder and performed a wet test and got the #195psi. It did not significantly jump back up very high so im kinda stuck on thinking could it be more of a piston ring or a valve issue? I know i should do a leak down test, but i do not have access to a leakdown tester.
Curious to know if any s2k members could chime in with professional opinions, i would highly appreciate some thoughts.
Thanks
-S2kOutlaw
#3
yes i pulled the fuse and did 1 cylinder at a time and putting in the spark plug after finishing that cylinder. also had the gas pedal at WOT during cranking
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