Changin spark plugs
10

Asked by GuruB4NJZ Dec 02, 2018 at 10:34 PM about the 1999 GMC Jimmy 4 Dr SLE SUV

Question type: Maintenance & Repair

I change all the spark plugs. N when went to start
it. Starts up but now the coolent gague dont move
at all so dont know whats wrong.

2 Answers
42,950

Hornet_2497 answered 5 years ago

While changing the spark plugs you must have bumped loose the wire going to the coolant sensor. They are usually located near the front of the engine, tapped into the cooling system, on the top of the engine. The spark plugs themselves have nothing to do with this problem. Easy fix....loose wire.

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