Rick's Free Auto Repair Advice

Posts Tagged: Chevrolet Avalanche

P0741 Avalanche Colorado Express Silverado Suburban Tahoe Trailblazer

Fix code P0741 TCC Stuck Off GM has issued a technical service bulletin PIP4329 to address trouble code P0741 and a check engine light. The cause of the problem is debris plugging the converter clutch signal orifice cup plug 238 in the transmission pump cover. The debris blocks the transmission fluid that’s needed to move the converter clutch valve and apply the transmission torque converter clutch (TCC). To fix the problem, disassemble the pump and clean the converter clutch signal orifice cup plug in the cover and also clean the … Read More

Uneven brake pad wear and noise

What causes Uneven brake pad wear and noise Rear disk brakes are exposed to the same road debris, salt, snow, rain, and heat as front brakes. But because they do only 20% of the braking, they don’t get worn as quickly. That leaves them especially vulnerable to the elements. Since the pads don’t wear as quickly, the caliper doesn’t slide on the caliper pins nearly as far, so caliper pin rusting is far more common. This is especially true in 2000-06 Chevrolet Silverado, Avalanche, and Suburban 1500 trucks. Every time … Read More

No Heat or AC — GM Trucks

No Heat or AC — GM Trucks Owners of some GM Truck and some SUV owners may experience a problem where they have no heat or AC or cannot control the heating, ventilation and A/C system. They may also find that the system always defaults to the DEFROST mode. The following trouble codes may be stored in memory: B0229-Recirculation Actuator, B0414- Left Air Temperature Actuator, B0424 Right Air Temperature Actuator, or B3770 Mode Actuator Cause GM reports that the problem may be found in the HVAC actuator harness contacting a … Read More


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