20 Most Recent 2005 Chevrolet Avalanche - Page 7 Questions & Answers

You need to check the space between your heater core and your a/c condensor. Dirt and dust plug these up alot. It could also be your heater control switch itself, not allowing the heater door to switch over. If you don't hear a vaccuum sound when you change from vent to heater or defrosr, your switch/control is bad.

Could be your coolant temperature sensor is faulty,here's a link on how to replace.

Replace the sender unit in the fuel tank.

yes there is a breather and it would be located on the top of the fuel tank

Remove the positive and negative cables by removing 8mm bolts,then the 13mm hold down bolt at base of battery.

My first guess would be a restriction in the radiator or a faulty bearing in the fan motor.

you need to remove the door panel look for the screws then pull the panel back and pry against the retainers one at a time

could be in control panal and could also be a vacumm issue. not sure how those cars are set up. hope this helps some and good luck

On an 03 Sil SS C0298 "Powertrain Control Malfunction" H "Electronic Brake Control Module (EBCM)" Believe this code to be same for your truck too. hope this helps

The solenoid is mounted on the back side of the tank. From under the truck you can remove the valve wiring connector, remove the valve from the tank and remove the lines from the valve and canister. If there is no hose on the new valve, then use 5/8 heater hose to run the filter for the valve beside the transmission.

the blower motor and the blower motor resistor are both under the passenger side of the dash. remove the trim panel under the dash and you will see them both. I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_d728a59f986299fa

If it's similar to a Silverado, the tailgate handle consists of a bezel (plastic cover) and a Red and Green plastic clip that break very easily. Take the bezel off (just pull carefully from the tailgate, careful not to break the plastic clips) look for 2 rods, again 1 connects to a red clip, the other to a Green, replace the broken one, or a cheap/temporary fix is to use a plastic zip tie at the connection. Snap the bezel back in.

Duplicate question.