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2006 Chevrolet Trailblazer SS Questions

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The top vacuum line connecting to were the throttle body isn't sucking air at all... normally it sucks air the way the brake booster hose line does wen disconnecting the line the car idles down or bogs down like it wants to turn off but it doesn't even do that..
Wen turned on the rpm's mark ok.. but wen it's in drive or reverse or come to a stop then letting go of the brakes my car takes off slowly and little by little it starts gaining speed and my rpm s start rising till they mark to 1300 and it stays there... and that's without even touching the gas pedal .... I need help fixing this problem quick
I've put a new camshaft sensor, oil gaugr, also put new tire monitor new ignition switch. It drives good just lights go on and I lose performance in my motor. What do you think it could be?
recently had front differential replaced and the 90,000mile service done as per the maintenance schedule. Stability track comes on randomly, on the highway, for no reason, on straight, flat, dry surface. Stays on until I brake a little and keep braking a little in intervals and then it goes off. Very scary. No rhyme or reason for this. I love my car!!! Don't want to give it up, help!
Since this started I have also noticed that when turning the car off it shuts everything down, when it never did that before it would stay on for about 10-15 minutes before this happened.
Back up is this a problem or is this normal
how to remove and install
Compressor was just working fine yesterday now the back of the truck sits low and the compressor dosent come on
And make them look new again?
just started
how do you stop odometer on ss trailblazer
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