Quote:
Originally Posted by Jim-Bob
Normally you test a car with all three plugs out, throttle wide open, coil wire pulled, and with a fully charged battery. I also like to put jumper cables on the battery and attach them to a running car so that there is sufficient charge to maintain RPM across all 3 cylinders.
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all you do for a compression test is take the spark plug out of the cylender you are testing .
chuck the compression tester in
crank it about 4 times then look at the results for that cylinder.
repeat for each cylinder and dont forget to put the plugs back in
dont know what your on about jim-bob. but thats the most interesting way ive heard someone do it (no offence intended just my 2c)