
1996 GMC K2500 Sierra SL 5.7L Tcc
At 50-55 mph only in 3rd or 4th gear tcc solenoids are cycling on and off. This is cuasing a rpm "surge". Unhooked the egr and evap sol with no change. New tps installed. All input and output speeds steady on graphing scanner. It appears that the ecm is turnin...
Summary posted 3/16/2011
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Message Closed w/Summary
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VIN | 1GTGK29R9T |
Engine | 5.7 L / 8 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | Fuel Injection |
Affected | TCC |
Conditions | Cycles On/Off |
Misc. | 4L80e |
Message Closed w/Summary
Vehicle Data
1996 GMC K2500 Sierra SL
VIN | 1GTGK29R9T |
Engine | 5.7 L / 8 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | Fuel Injection |
Affected | TCC |
Conditions | Cycles On/Off |
Misc. | 4L80e |