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2001 Chevy Blazer 4 X 4 DRIVE

Tiny
RAYMOND LARUE
  • MEMBER
  • 2001 CHEVROLET BLAZER
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 95,000 MILES
My 4x4 switch is pushed the light blinks on the desired drive high or low 4x4. After waiting for a while the 4 wheel drive will take holt, sometimes / most it will kick out. Could this be the vaccum switch on the side of the trans? If so where is it located? The push button switch was changed last week. The garage tested the systems on the computer at the same time with no results
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Monday, January 21st, 2008 AT 10:11 AM

1 Reply

Tiny
DENNYP
  • MECHANIC
  • 1,824 POSTS
It could be the vacuum switch on the top of the transfer case, or a bad vacuum hose going to the switch. Check the vacuum hoses near the transmission dipstick tube for any leaks. Sometimes they get melted from the exhaust pipe.
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Monday, January 21st, 2008 AT 10:06 PM

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