Chevrolet Repair Questions? Ask a Mechanic for Answers ASAP
I have squeaks, rattles and chirps when driving. They drive me nuts too!
When your pedal is squeaking does it sound more like a rubber squeak than a metal squeak?
Sorry, JustAnswer was acting up. It wouldn't let me respond.
Does your avalanche have vacuum assist brakes or hydroboost? The 2007 has both options?
Do you see a large black donut looking thing between the firewall and the brake fluid reservoir?
The more common option is the hydroboost hydraulic assist and they will sometimes leak fluid internally causing a squeak noise.
This style has fluid hoses running from it to the power steering pulley and is mounted between the firewall and the brake fluid reservoir.
Down at the firewall where the brake pedal rod goes through the firewall pull the carpet back and look for signs of fluid. This is a good indicator that it is leaking through the booster.
I definitely am. I took 4 tries to get that to post. It kept saying an "error occurred".
I don't know if it's the internet here at the shop or JustAnswer's system.
Ok. Let me know which booster it looks like you have when you get a chance and we'll get going again.
I just wanted to check whether you need any additional help.