When I have my car stopped and on it is making a loud click sound on an off by the front part of the engine by a belt
Dec 2, 2009 at 9:52 AM
2002 Chevy Blazer loud noise
2002 CHEVROLET BLAZER
QUINNGLORIA
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Maybe belt old an cracked and/or worn belt tensioner. Try and isolate noise to and area or pully
Dec 2, 2009 at 10:11 AM
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Is it a click then a few seconds and another click? Watch the A/C compressor and see if it is cycling with the clicks. When you turn most newer vehicles to defrost the A/C also cycles to dry the air and prevent it from fogging the windows.
If that isn't it then it takes a bit more work. If you determine that it is not the A/C then use a 3/8" bar to move the tensioner and release the belt from under the top idler. With the belt loose start the engine. Don't run it over 30-40 seconds. Listen for the click. Is it gone? If yes then start turning each pulley and listen/feel for a sticking spot, grinding noise or a very loose bearing. They can be difficult to track down so check close.
If that isn't it then it takes a bit more work. If you determine that it is not the A/C then use a 3/8" bar to move the tensioner and release the belt from under the top idler. With the belt loose start the engine. Don't run it over 30-40 seconds. Listen for the click. Is it gone? If yes then start turning each pulley and listen/feel for a sticking spot, grinding noise or a very loose bearing. They can be difficult to track down so check close.
Dec 4, 2009 at 10:06 PM