Question about Cars & Trucks
Changed coil and spark plug and injector. Checked for power and ground to each using noid light and ok. Compression=155lb. Removed valve cover and valve spring and lift ok. Any suggestions?
Do a running compression test. What you are experiencing IS mechanical. I would suspect a lifter collapsing at higher/faster rpm and you will not see it with the valvecover off.I have seen this numerous times and a running compression test will let you know
Posted on Apr 25, 2015
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Posted on Jan 02, 2017
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