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engine ticking and rearend noise

This is a discussion on engine ticking and rearend noise within the General Help forums, part of the LSx Technical Help Section category; Im new to this forum and recently purchased a 2002 ss slp camaro with only 16000 miles on it. Now ...

  1. #1
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    2002 camaro ss

    Question engine ticking and rearend noise

    Im new to this forum and recently purchased a 2002 ss slp camaro with only 16000 miles on it. Now the engine sort of knocks or has a slight ticking noise. Is that common for this car? Also every now and then the rearend clunks. what would that indicate? Other than that the cars great. really fast car. Want to race a newer mustang gt but im not sure id win.

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    Senior Member tatertot91's Avatar
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    Quote Originally Posted by slimss View Post
    Im new to this forum and recently purchased a 2002 ss slp camaro with only 16000 miles on it. Now the engine sort of knocks or has a slight ticking noise. Is that common for this car? Also every now and then the rearend clunks. what would that indicate? Other than that the cars great. really fast car. Want to race a newer mustang gt but im not sure id win.
    Ticking noise is pretty common on LS1s (lifter/piston slap), worst case it may end up being a spun rod bearing, but thats not as common as a lifter, mine ticks a little and so does both my friends. The clunking noise in the rear end may be a messed up gear, chipped tooth, something like that. And against a newer GT, i would give you the upper hand. Is it an auto or manual?

    Welcome to the site
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    Last edited by tatertot91; 11-11-2009 at 06:07 PM.

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    Senior Member redbird555's Avatar
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    2002 Camaro Z/28 Pewter

    Since you have an ss you May have an auburn differential and if the friction modifier is bad or not in the oil it will chatter. If you have a torsen they are usually pretty quiet mine sometimes makes a tad bit of noise but barely noticeable. Only way to tell which one you have is to take off the rear cover. Btw the ticking noise is normal theyre just noisy engines mine sounds like a damn diesel till its warm.

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    I'd also check the u-joints for slop.

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    Senior Member redbird555's Avatar
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    2002 Camaro Z/28 Pewter

    btw as far as the race with the gt goes 99-09 ur gonna win unless you cant hook. 10-up its a good race but the ls1 should come out on top. just dont go messin with any 03-up cobras

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    Junior Member ribbits's Avatar
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    My 02 CETA (25K miles) has a whinning or machine noise that seems to be coming from the rear differential. It is more obvious while accelerating but it does not clunk or make any sudden loud noises it just seems to have a high pitch whining machine like sund.. It's kinda like a turbine noise winding up and down varying with RPM's ? Any thoughts if I'm about to have some problems or should I change the fluid to something specific ? Additives ?
    This car is not drive very often ?
    Thanks

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    Retired NOT tired SteveC's Avatar
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    Quote Originally Posted by blade2222 View Post
    I'd also check the u-joints for slop.
    +1 on this.

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    Smiles for 9.5 Years cammed goat's Avatar
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    I agree with all suggestions. Check/change your oil, inspect the driveline, trans mount, torque arm, panhard bar and check/change your rearend fluid. Better to be safe than sorry.

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    Senior Member Naaman's Avatar
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    Quote Originally Posted by ribbits View Post
    My 02 CETA (25K miles) has a whinning or machine noise that seems to be coming from the rear differential. It is more obvious while accelerating but it does not clunk or make any sudden loud noises it just seems to have a high pitch whining machine like sund.. It's kinda like a turbine noise winding up and down varying with RPM's ? Any thoughts if I'm about to have some problems or should I change the fluid to something specific ? Additives ?
    This car is not drive very often ?
    Thanks
    Sounds to me like your back lash is out of spec. The bearings are probably failing (age...?). I had a noise just as you are describing in my rear end and replacing the bearings/seals/fluid solved the problem.
    Lid, Throttle Body, LS6 Intake, Heads, Cam, Magnaflow, LS7 Clutch, SFCs, STB, Panhard Bar, Strano Springs, Hollow Sway Bars, Poly/Roto LCAs, Konis, MGW Shifter

  10. #10
    Junior Member ribbits's Avatar
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    Quote Originally Posted by Naaman View Post
    Sounds to me like your back lash is out of spec. The bearings are probably failing (age...?). I had a noise just as you are describing in my rear end and replacing the bearings/seals/fluid solved the problem.
    Thanks for the feedback.. I'll pull the pan and check for metal in the bottom... May even check backlash clearance if I can get that spec somewhere ? also will inspect brgs as this car is static for months at a time..

  11. #11
    Senior Member Naaman's Avatar
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    Yeah, I'm not sure how "sitting" will affect the bearings... I would have assumed that it would have no effect... but I am far from an expert.

  12. #12
    Junior Member ribbits's Avatar
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    Quote Originally Posted by Naaman View Post
    Yeah, I'm not sure how "sitting" will affect the bearings... I would have assumed that it would have no effect... but I am far from an expert.
    Not sure where the normal lube level is in the differential, but I know it's not completely full.. Over time with inactivity the exposed portion of the brgs. / gears can collect moisture due to condensation.. Condensation causes rust and rust causes pits in the surface of the metal.. These pits in the surface will cause premature brg./gear failure over time... This is a common problem in the aviation industry... That's why an aircraft regularly flow with lots of hours often will fetch a higher price than one that is infrequently flown with comparatively far less use or "miles" on it..

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