60
questions

clicking noise from under dash. could be a actuator in heat a/c system. can I fix this?

Dont know. Much history about truck the previous. Owner. Has passed. But i put an obd2 on it an no codes fuses are good spedo Works . I've. Also beleve the trans is good. Anyone have any ideas it sure would help

Struck can not trun down or off unless pull the fuse

will code po446 cause REAL problems to vehicle if not repaired?

Second set of disc brakes since I have owned this truck. I have replaced everything from the hub out on both sides: rotor, caliper, and brake pads. I still get lots of noisy clanking from the front brakes when under way,especially if I hit a bump or hole in the road. A little pressure on the brake pedal and "wa-la" no noise...???????

Driving down highway and cruise control just quits. During those faults the left turn signal also does not work. Switch off and back started again usually fixes the problem?????

The rear end is making a loud bang that garage now says it's the difference is this possible and why would they have not recognized this while installing the new transmission not happy at all could someone please help me thankyou so much regards cat

Replaced throttle body gasket wasn't it then replaced throttle body it self because only water goes through intake is two lines on bottom of throttle body that wasn't leak either and there's no water in oil at all and its 5.3 engine help please

































When I turn the key on the ON position the lights on the 4wd selector switch the buttons come ON then go OFF. Then the SERVICE 4WD light comes on. None of the buttons responded. I have another 04 gmc sierra 4wd I took the tccm and put it in and still the same lights come ON when turn the key on then go out and no response when I push the buttons. I replaced the encoder ring and same thing. I swapped out the 4wd selector switch and still nothing the only thing i haven't tried is replacing the transfer-case shift motor or the front axle actuator. I also cleaned the grounds on the frame that are underneath the driver door. i went to a couple shops and they want $150 - $200 just to hook up the scanner and diagnose the problem.

when trying to shift in to 4wd high light blinks then goes back to 2wd.can hear it trying to shift but wont.never had a maesage say service 4wd or any thing. worked in auto and 4wd high just a couple weeks ago.

During the hot of summer, the AC settings do not blow any cold air. The freon is full and the fan runs, just only pushes out hot air. During the winter the heat doesn't work, again the air comes through from the fan, but cold as can be. More or less it just seems to fan in the outside air whatever it is.