Over Voltage Relay Test?

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Over Voltage Relay Test?

07-17-2000, 03:42 PM

Johnny

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I have a 300SDL and I think I have a bad relay , but not sure. Any easy way to test myself or is it a lost cause? Car sympton: when car is idling I experience an intermittent RPM spike then drop-off ,then car smooths out and runs fine. I have noticed the problem both at idle when engine is cold , and upon re-start with warm engine. I have gone thru archives but did not find any trouble shooting suggestions.

Johnny Justice
1986 300SDL 171K
1996 Ford Explorer 62K

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