JnCsvt
CEG'er
No, i dont know how to do that, or where to get it done... i could take it to my mechanic but i dont really want to go back to him right now
you want to unplug the coil also, open the tb, should be done on a hot engine, etc
Most directions DO say this, but doing it this way often results in an incorrect diagnosis. Conversely, the "crank-till-the-needle-stops" method gives you a max reading and is typically much more accurate... ESPECIALLY if you don't pull all the plugs to start, (which is usually one of the first steps given by most instructions). If a cylinder DOES have a compression problem, it is NOT going to reach the same max compression as a good cylinder... period. However, if you use the "crank X times" method, good cylinders COULD give similar readings as a bad ones, or, you can easily end up with readings that appear to show a compression problem, when there really isn't one. Ask me about the diesel I'm working on that was given to me because it "has a compression problem".tester should come with instructions but mine read that you only crank the engine 4 times, not until the needle stops moving.
did your mechanic just install it or what did he have it for in the first place? I hate to be the odd man out here, but this doesn't sound like a vacuum leak to me. What PCM, injectors & MAF are you running? Do you have any way to check your fuel trims?
I had a knocking svt motor, so he did the swap.
I couldnt find a vacuum leak so i dont think so either, svt pcm injectors and MAF, its all stock.. the car is an svt. engine is part matched so i even have the intakes.
I changed the MAF to see if it would help, no go.. i also changed the IAC same thing.
But it is a possibility i have a compression issue, because i have serious blow-by.. oil puddles in the accordian tube after running the car maybe a half hour at idle.
Something that popped into my head today that may or may not be a culprit. is the bugzuki plates. I installed them using a minimal amount of gasket sealant. It may be possible that air is escaping somehow through there.
Who installed the lower intake manifold to head gaskets? Did they clip the centering posts off them? If not they could have a major leak there.