I got my 98 v6 camaro back from the shop cuz i replaced all my ingnition coils. I get to the shop and start my car and know the engine is knocking like crazy. not really at idle but anything above idle it knocks. any suggestions would be great? ohh and i know it could be the knock sensor but i have no clue where its located.?.?

 

Did it knock before it went in the shop?

 

nope. started knocking the second i picked it up and the tech said it was the A/C compressor. It doesnt lock and spin anymore but i dont think thats whats making the knock.I listend to it with a scope and cant find the knock.sounds like deep internals.

 

I would take it back to the shop. Sounds fishy...

 

i did. he wont fix it. he might just catch a rock in the jaw. but any suggestions on what the knock could be coming from?

 

Well, seriously I wouldnt open anything up untill the situation with the 'mechanic' was rectified. A call or online visit to the BBB Better buisness beureo (sp) is in order. I once got an entire living room set re-upholstered by calling them.

There are some simple diagnostics you can do though... how does the oil look? How does the water/coolant/antifreeze look? How long has the A/C done this?

 

Maybe a coil wire is off on one side than the other. If you have a hot car, the test ride may have induced a good bottom end knock is someone took a hammer to the gas pedal. Might be why they do not want to get involved is something happened there with your car in their hands.

I sure did romp your every ride. Wasn't my car! Ain't that a beach!