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2003 Chevrolet Silverado 1500 5.3L TCC Lockup
Posted to GM Transmission on 10/12/2007 8 Replies

Goes in and out of lockup at 48 to 52 mph. With modis hooked up, we can engauge lockup, does not do it. Checked brake switch-good, checked grounds-good, seems to be temp related, only does it when at operating temp., can't see anything out of range on scan in ...

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car Vehicle Data

2003 Chevrolet Silverado 1500

VIN 2GCEC19T53
Engine5.3 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
AffectedTCC Lockup
ConditionsUnlocks & Locks Causing Surge
Message Closed

car Vehicle Data

2003 Chevrolet Silverado 1500

VIN 2GCEC19T53
Engine5.3 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
AffectedTCC Lockup
ConditionsUnlocks & Locks Causing Surge