Knocking noise

10

Asked by Feb 12, 2016 at 10:55 PM about the 2003 Chevrolet Silverado 1500 LS Ext Cab Short Bed 4WD

Question type: Maintenance & Repair

I press clutch in  and I hear a knocking I let off it
quits. Everything is new from clutch to master
cylinder I thought it was a knock in motor but its
not I was wondering if it could be the transmission
bearing behind my throw out bearing

7 Answers

60,165

If clutch is tite and good and you only hear knock when depressed,it may be bad throw out bearing,or pilot bearing issue,

10

The throw out has been changed 3 times the pilot bearing was new just last spring along with clutch and pressure plate I have a hydraulic clutch

1 out of 1 people think this is helpful.
60,165

Did you bleed it properly?

10

It really sounds like a knocking like I at first I thought rod knock in motor but in neutral the motor is quiet and runs great

10

Yes everything works beautifully shifts and runs perfect just that knocking when clutch pushed in its more noticeable at moment clutch goes in to drive

10

I was thinking either pilot bearing or the bearing on the transmission shaft behind my throw out maybe the bearing is bad enough it vibrate s

43,055

Have you taken the inspection cover off and looked for any wear marks that may be causing a noise? Rubbing. I myself would block the truck up real good, get someone you can trust to operate the clutch, crawl underneath with the inspection cover off and see or try to pin-point what is causing the noise. (knock)

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