1988 GMC Jimmy engine shuts off when head lights switch tur

1988 GMC JIMMY
55,000 MILES • 6 CYL • 4WD • AUTOMATIC
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DICK JACOBS
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When the vehicle is running and the head lights are turned on, the engine shuts down and will not restart right a way. If I let it sit for 20 - 30 mins, it will restart. What causes this problem?
Dec 10, 2009 at 8:10 AM
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JDL
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Welcome to the forum, how long since a tune-up? Make sure the battery has a full charge, connections are good and the charging system is ok. When it refuses to restart, does it crank ok, if so, check for spark at the plugs, engine cranking. Go from there.
Dec 10, 2009 at 9:42 AM