2002 Tahoe electrical mystery

FCWSNOOP

MEMBER
2002 CHEVROLET TAHOE

I have a 2002 chevy tahoe and just recently when turning the ignition key off from the running (on) position I lose power to my instrument panel and have to reset my clock. In addition to that the car turns over just fine but has trouble continuing to idle for a brief period. Now this only happened once but as I walk away arming the alarm via remote the horn sounded as normal but then wouldn't sound again or unlock, so it had complete power loss and again was hard starting but eventually ran again. Any ideas? Thanks Ryan

1 Reply

RYANUNI

MEMBER
34 POSTS

Ryan, take a look at the battery terminals and the connections to the battery leads. I have had a similar problem on two seperate GM trucks, an excess of corrosion build up caused the truck to fail to start at times but more often start, then die. In both cases removing the terminals and cleaning everything with a mix of baking soda and water as well as a file and wire brush to remove stubbron corrosion did the trick. Not sure if it will work for you but I would give it a shot since its an easy, and more importantly free, fix. If this doesn't do it have your battery tested as the next free check. It obviously sounds like an electrical thing though, good luck.