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Registered
Join Date: Aug 2010
Location: Kansas City, MO
Posts: 540
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Car makes a clunking sort of noise
I'm not sure what this could be. It sounds like it coming from the rear. Whenever I am turning and getting on it it seems to make this sort of cluncking/crunching type noise. It keeps pulling just fine. I have changed the trans fluid and put on new rebuilt axles.
Any ideas? Could it be wheel bearings? 1986 944 Turbo. Stock. |
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12-17-2010, 03:30 PM
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Garage Helper
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It could be many things from CV Joints to Motor Mounts - Need allot more information
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78-924 traded for 80-931 traded for 84-944 traded for 85.5-944 (7th one now).  UAV-M1 (Urban Assault Vehicle - Model 1) Bless the lowered, and pass the nitromethane. Pedal to the metal till you see the gates of hell then brake NLA - No longer available is a four letter word |
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12-17-2010, 05:39 PM
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Registered
Join Date: Jan 2006
Location: San Diego
Posts: 216
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If you replaced the CVs, it might be the ring and pinion in your transaxle. The pinion bearings are the weak link in the transaxles. Once they start to go, the ring and pinion will start to make noise and after a while the trans may blow up.
The one I had sounded like a chain dragging over metal in the turns.
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Jim Richmond 944 Spec race car, SoCal NASA & POC 01 Boxster S |
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12-17-2010, 09:47 PM
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Location: Kansas City, MO
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This trans is a 944 Turbo. As far as I know the RP problem isn't common in these transmission. Also my old 924S RP blew up, but it never sounded like this. My motor mounts are bad. I will try to get a sound clip
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12-18-2010, 05:36 AM
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All Spooled Up
Join Date: May 2009
Location: Between NE and Central PA
Posts: 2,516
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Only when you are turning? Wheel bearing, or forgot to torque down the lugs on one of the back wheels? Could also be a broken spider gear tooth.
I would suggest raising up the rear wheels, running them, turning them by hand, etc., to try to help determine where the problem might be.
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>gray 89 951S - K27/8, MAF, 3" intake, 3" exhaust w/separate waste pipe, 55# inj, late cam; >red 87 924S - chip, K&N, punched-out cat&muffler >black 80 924 - (sold) >maroon 77 924 - auto (sold) Last edited by wild man; 12-18-2010 at 05:52 AM.. |
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12-18-2010, 05:48 AM
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Registered
Join Date: Aug 2010
Location: Kansas City, MO
Posts: 540
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It will do it when turning and going WOT or close. Also when it is really warmed up sometimes under load it will make the noise. Its very odd.
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12-18-2010, 06:35 AM
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Join Date: Aug 2010
Location: Kansas City, MO
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Turbo, CV Axles, and wheel bearings have all been replaced. Apparently the noise is still there.
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01-09-2011, 05:32 PM
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Sounds like a shock is bad or a torsion bar carriers bashing is gone? Try compressing each trailing ARM up and down by hand next time car is in the air?
Easy way to check ring & opinion is get in third gear maybe around 35 mph and get on and off gas very quickly too see if there is excessive play.
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'83 944 ROW zermatt silver/black, sunroof & A/C factory deleted, houndstooth sport seats, 7Q - 220 LSD short fifth, F & R 23.3 MM 951 M030 suspension, 16" fuch's, manual windows, club sport mirrors, Blk/Wht gauges, rear seats & all sound deadening removed, 968 rear wing, fiberglass hood & 937 F bumper |
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01-09-2011, 09:15 PM
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Registered
Join Date: Aug 2010
Location: Kansas City, MO
Posts: 540
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What is the torsion bar carriers bashing? The mechanic who has also looked at the car said that my rear shocks are bad.
Could it be a bad transmission mount? Motor mounts have also been replaced. |
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01-10-2011, 06:31 AM
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Registered
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Sorry stupid phones small keys and spell check correction!
I meant to say bushings!
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'83 944 ROW zermatt silver/black, sunroof & A/C factory deleted, houndstooth sport seats, 7Q - 220 LSD short fifth, F & R 23.3 MM 951 M030 suspension, 16" fuch's, manual windows, club sport mirrors, Blk/Wht gauges, rear seats & all sound deadening removed, 968 rear wing, fiberglass hood & 937 F bumper |
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01-10-2011, 07:07 AM
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ORACLE
Porsche 944
1989 Duh? 951
