In this video I discuss symptoms of worn or bad fuel injector o-rings. A brittle or cracked fuel injector o-rings can cause vacuum leak, fuel leak, an engine misfire, poor engine performance, hard start, no start rough idle, stalling etc... I also show how to properly remove the fuel injector without damaging the o-rings and how to properly install it. For example, the o-rings should be lubricated with fresh engine oil prior to installation.
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