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4x4 service light

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Old 03-08-2006, 01:31 PM
butler's Avatar
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Default 4x4 service light
I have a 2000 Blazer with the service 4WD light on all the time. The 4WD will not work in any range, however this problem has not thrown any codes. Does anybody have any ideas?
 
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Old 03-08-2006, 02:01 PM
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Default RE: 4x4 service light
Will the lights just blink then go back to 2 HI? check all the vacuum lines. In the enth end <--------hee hee, you'll probably have to get the TCCM replaced. Easy fix, (3) 10mm nuts and about $300.00+
 
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