2004 Chevrolet Blazer trail Blazer

Tiny
JOSEPHDUB
  • MEMBER
  • 2004 CHEVROLET BLAZER
  • 4.1L
  • V6
  • 2WD
  • AUTOMATIC
  • 126,000 MILES
While driving all gagues shut off windows wont work have to turn head light switch all the way to the left turning the daytime lights off then all starts to work again few minutes it does it again it also makes a nois under the dash aprox around the steering wheel even after turning the key to off position some days it wont do it and most days it does one after nother again and again

Friday, January 10th, 2014 AT 11:16 PM

1 Reply

Tiny
CARADIODOC
  • MECHANIC
  • 34,331 POSTS
What you're describing is typical of a worn ignition switch. There's usually three or four different switches built into the one assembly. Arced and pitted contacts cause intermittent operation. Very often heat is generated in worn contacts and that heat will migrate out to the terminals in the connector. Inspect that connector first. If it is melted or you see two blackened terminals, replace the switch, and I'll describe the rest of the repair procedure. You may get by with just the new switch for a few days, but the problem will return if the terminals aren't replaced too.
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Saturday, January 11th, 2014 AT 2:50 AM

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