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1999 Chevrolet Blazer LS 4.3L TCC Module
Posted to GM Transmission on 12/3/2009 15 Replies

This Blazer will not stay in 4wd above 10 mph. Above that speed it reverts to 2wd and sets the service 4wd light. It sets speed sensor code, but all three speed sensors show good. Have replaced front speed sensor and swapped the 2 in the back with the same res...

15 Replies Received (View Replies)

  Related Documents & Media  1999 Chevrolet Blazer LS

 
Message Closed w/FIX

car Vehicle Data

1999 Chevrolet Blazer LS

VIN 1GNDT13WXX
Engine4.3 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
AffectedTCC Module
ConditionsWill Not Stay Engaged Above 10Mph
Message Closed w/FIX

car Vehicle Data

1999 Chevrolet Blazer LS

VIN 1GNDT13WXX
Engine4.3 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
AffectedTCC Module
ConditionsWill Not Stay Engaged Above 10Mph