Question about 2002 GMC Envoy
The engine doesn't spin when you turn the key to start ? No click -no nothing . Check the starter relay in the under hood fuse / relay box . Security light lit on the instrument cluster ? Do you know what a relay is ? videos on youtube . How to voltage drop test starter motor circuit
Posted on Dec 18, 2016
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Posted on Jan 02, 2017
check to see if the starter itself is getting a signal to crank. youll need to use a test light and have someone else try to start the vehicle, while you probe the wire to the starter to see if it is getting power. if not, check the starter fuse to make sure its not blown, as well as the starter relay to make sure that is good too (very common on gm's for bad relays) if the fuse and relay are good, but your not getting signal, it is an ignition switch problem.
Posted on Dec 11, 2008
Ignition switch and neutral safety switch. Next time it happens wiggle thekeys in the ignition switch and try to restart.If it starts its probably the ignition switch. Then locate neutral safety switch on brake pedal and put meter on B+ wire from switch to starter relay and see if you get B+ on the would -be- crank. Next locate B+ wire from starter relay to starter hook a meter to it and see if you get B+ on the would -be crank.
Where ever B+ is missing is your problem.
Posted on Apr 14, 2010
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