I have a noise that sounds like a fan hitting a metal shroud coming from my truck. I recently changed the tranny so all of those options or gone. It occurs when driving, and sometimes when idling. It seems to increase with torque. Yesterday I was backing up with some speed and noticed when I braked the sound was quite pronounced. I went and did this several times with the noise being there each time, especially when braking. This has stumped several mechanics who felt it was in the transmission. The noise sounds like a metallic clang, when driving at highway speeds I can hear it, it is more pronounced when accelerating. I can also hear the noise in idle although it is random. Any help appreciated, thanks.....
2007-01-04 01:28:04 · 4 answers · asked by Bud P 1 in Cars & Transportation ➔ Car Makes ➔ Chevrolet
Its probably the metal tube (for lack of a better word) under your truck. Its annoying but not hazardous. I would get it checked out just the same.
2007-01-04 01:29:58 · answer #1 · answered by Jon S 4 · 0⤊ 0⤋
You mentioned that you had the trans replaced recently. I suggest that you check the bolts on the flex plate that hold the trans torque converter to the engine crankshaft for tightness or you may even have a cracked flex plate.
2007-01-04 09:44:59 · answer #2 · answered by overthehill 1 · 0⤊ 0⤋
Check your transmission mounting bolts. Also check the torque converter bolts. You should use new flex plate to torque converter bolts.
You may have a cracked flex plate.
2007-01-04 09:34:12 · answer #3 · answered by R1volta 6 · 0⤊ 0⤋
take it back to the guy who put the tranny in,from your story I'm assuming that this noise was not there before the new tranny was installed
2007-01-04 09:38:53 · answer #4 · answered by vincent c 4 · 0⤊ 0⤋