Top 20 2008 Chevrolet Avalanche LS Questions & Answers

Hi Benjamin: I'd be getting the brakes checked (or actually check them myself). That involves getting the vehicle jacked up, removing the wheels, and visually inspecting the brake pads and discs. PLEASE! This is a safety issue and you NEED good brakes. Don't delay/ Get them checked. Best to you.

First check the speakers wiring, due to the car movement these wires tend to break or create a bad connection, at the doors they break at the passage of the door to the body, inside a rubber coil. The speakers also can get wet due to water infiltration, so check for it too.

https://www.modifiedlife.com/2004-chevrolet-avalanche-car-audio-wiring-diagram/

On my 04 Grand caravan,the E G R tube went through a pipe about the size of a quarter to the valve cover.it should have a rubber grommet in it

Some fixya user told me a website reliablestore it is very good.. I used it to repair my shredder it had some spark issue which wasn't easily fixed. you can go there and try

Try, www.youtube.com/watch?v=3RFTS22w6tM

First need to hook up a scanner to see if the emc is talking to the tcm, It may just be a communication problem

Sounds like your "traction control" system is having issues such as a wheel speed sensor. You can have these type things scanned free at your local auto parts store, Auto Zone, Advance Auto Parts etc. etc. They should be able to "steer" you in the right direction. Hope you get the problem at hand resolved, for that is dangerous driving like that. Jesus loves you, John 3:16-17 (KJV)

You found the right place right time buddy.. i know a lot of websites for repairs and manuals that can really help u..

Depending on what you have for diagnostic knowledge and tools. You may want to send it in for diagnostics and repair. I can tell you that your vehicle's BCM (Body Control Module) controls these circuits. If it was a t my shop. I would first look for any fault codes. Then through the scan tool, manually command the doors to lock and unlock. Depending on what I find, take a closer look at the master control switch. This is in the drivers door and opens/closes windows and locks/unlocks doors. I'm forwarding you a couple wiring schematics just in case. I don't want to slow you down. FYI under the hood, inside the power distribution box. There is a relay for the tailgate lock/unlock. Any questions please feel free to write back. Good Luck.

Look here https://www.mahle-aftermarket.com/media/local-media-north-america/pdfs-&-thumbnails/torque3.pdf

you found the right place buddy.. i know a lot of websites for repairs and manuals that can really hel p u.. like reliable-store is pretty good

Battery Disconnect or Replacement Problems

temp control is the board

if talking about evap container --under vehicle buy rear axle and fuel tank --disconnect lines and connections and replace be careful of sparks because of fumes from canister

May be a voltage drop on the feed wires or weak ground point to those passenger side windows .

It should be on side of transmission.

That's odd - I am not aware of any configuration change that can be made to the radio that could change the operation of this switch. So, I think the problem may be internal to the radio (not interpreting the input of this switch correctly). You could try resetting the radio (and all other modules) by carefully removing the negative battery cable for a few minutes.

Has no fuel switch . Filling the vehicle with fuel would not have anything to do with it a day later . Is it fuel or ignition system problem ? Testing would need to be done to find which > Sounds like your best bet would be to have A qualified repair shop check it out .