Hello, Recently my car has been hesitating above 3-4+ k or so and when it does this it feels like the engine has lost spark perhaps intermittenly, the tach will jump all crazy into redline, even though it is not really redlining. The car will hesitate and the rpm does not match the sound of the engine. I have tested my coil and it appears to be that the resistence is not where it should be I just dont want to dish out the money if this isnt the problem. Is this the probably cause of my hesitation. Also, spark plugs, wires, dizzy have all been replaced last week. Thanks for the help!
No, I am not getting any c.e.l or code, the car operates fine under norman driving conditions, its only in the upper rpm range this happens. hmm how can i better describe this...oh and once and awhile while cruising on the highway in 5th, the rpms will jump slightly and quickly from cruising rpm say 3k to maybe to 3200 then back (5 spd, 2.2 fuel injected)
Your coil is probably breaking down under load.
The best way to test it is to buy a cheap spark tester from one of the auto parts and hook it up. The coil should fire even when you open the gap up to 1/2" on the spark tester. If it doesn't, the coil is bad.
No, a spark tester is not like a voltmeter.
You disconnect a spark plug wire, and push the spark tester into the plug wire.
You then ground the other end of the tester, then start the engine, and observe the spark quality.
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