Check the compression and valve clearance.

Answered by KHLow2008 (expert)
39,857 answers provided

how is that done?

Response from mkirksy3
5 questions asked

http://www.2carpros.com/articles/how-to-test-engine-compression

Check above link.

Answered by KHLow2008 (expert)
39,857 answers provided

I did the compression test and all the cylinders even the bad one was around 150PSi. The cylinder is still not firing or misfiring. i took the spark plug out and it was black on the end of it, the other spark plugs was kind of white. There is oil on the bottom of the distributor cap, but no oil inside.. not sure where that leak is coming from. I also changed the fuel injector on that one cylinder. When i first start the car, it idle fine until it heat up to normal temp. not sure what else to do. could it be a sensor or something.. maybe computer not responding.. i dont know

Response from mkirksy3
5 questions asked

Did you check the valve clearances?

Answered by KHLow2008 (expert)
39,857 answers provided

Did you test the plug wires?

Answered by KHLow2008 (expert)
39,857 answers provided

How is a valve clearance check is done? the plug wire are pretty good?

Response from mkirksy3
5 questions asked

Did you ohm out the plug wires? Looks does not show anything if there are internal breakages. You need an ohmmeter to test the resistance. There must be resistance and below 25k ohms.

http://www.youtube.com/watch?v=P7wI4EtZSaA

Answered by KHLow2008 (expert)
39,857 answers provided