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RSSMES | jerking sensation while turning | ||
Guru Newb
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I am experiencing a jerking/shuddering while pulling out of a parking spot, turning tightly etc. Feels like it is from the front end, the rear axle fluid is up to date. 2005 C6
thank you for any suggestions |
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Posted on: 2011/2/8 17:28
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pianoguy | Re: jerking sensation while turning | ||
Guru Emeritus
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My first thoughts would be a slipping serpentine belt, or maybe the PS fluid needs changing.
BTW, welcome aboard! |
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Posted on: 2011/2/8 18:24
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1996 LT4 �Before you criticize someone, you should walk a mile in their shoes. That way when you criticize them, you are a mile away from them and you have their shoes.�- Jack Handey |
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bogus | Re: jerking sensation while turning | ||
Grand Imperial Pooh-Bah
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Hm... when cold or hot?
C4's have this thing called "morning sickness." It's the tell tale sign that the power steering rack is failing. What I don't know is if this effects C6's or not. This shudder, as you turn, do you feel it in the wheel? Through the pedals? In the seat of your pants? Auto or 6spd? Oh, and finally, mileage. |
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Posted on: 2011/2/8 19:20
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The single biggest problem with communication is the illusion that it has taken place. - George Bernard Shaw Education is the best tool to overcome irrational fear. - me |
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Andrew | Re: jerking sensation while turning | ||
2013 Memorial Day Car Show Winner!
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Take it out of 4 wheel drive and it will stop!
I don't know where you live, but is it ice? This will create this type of feeling. If not, anything rubbing the tire at lock? Need more details. Welcome to CG! |
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Posted on: 2011/2/8 23:04
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2003 Atomic Orange Z06 Sold - 1996 Competition Yellow LT4 - DRM 383, NX N2O, Line Lock, LT Headers, 3" stainless exhaust, Power Effects, and many more mods SOLD 1996 Competition Yellow LT4 SOLD 1979 4 Speed with 383 |
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Matatk | Re: jerking sensation while turning | ||
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Quote:
Early C6s have a known problem with rear end chatter/shudder. The TSB called for using the newer rear end fluid Dextron LS 75W-90. This has solved the problem for many. From what I've read, others have used Amsoil/differential additive as replacement fluid with good results. Matthew Date: 01-09-2008 TSB: #07-04-20-002A Document ID# 2048181 2005 - 2008 Chevrolet Corvette Subject: Rear Axle Clunk and/or Chatter Type Noise on Turns (Drain/Refill Rear Differential Fluid) #07-04-20-002A - (01/09/2008) Models: 2004-2008 Cadillac XLR (Including V-Series and Export) 2005-2008 Chevrolet Corvette (Including Z06 and Export) This bulletin is being revised to change the fluid recommendation and to remove the requirement of adding friction modifier. Please discard Corporate Bulletin Number 07-04-20-002 (Section 04 -- Driveline/Axle). Condition: Some customers may comment on a clunk and/or chatter type noise from the rear of the vehicle while making turns. Cause: This condition may be caused by slip/stick of the posi-traction clutch plates due to insufficient limited-slip axle additive. As plates slip and stick, a jumping or jerking feel occurs accompanied by a clunk noise. Correction: Important: DO NOT remove the differential cover from the rear or the two sides. It is not necessary to flush the old fluid from the differential. Drain and refill the rear differential fluid using the procedure listed below. Draining Procedure: Raise and support the vehicle. Clean any dirt from around the differential drain plug. If not equipped with a differential cooler, remove the drain plug (1) and washer (2) from the differential. If equipped with a differential cooler: 4.1. Using a bent tip screwdriver, remove the quick connect fitting retaining ring (3) from the quick connect fitting (4) and discard the retaining ring. 4.2. Remove the differential cooler inlet pipe from the differential nut. Drain the fluid. Filling Procedure: If not equipped with a differential cooler, install the drain plug (1) and washer (2) to the differential. Tighten the differential drain plug to 35 Nm (26 lb ft). If equipped with a differential cooler: 2.1. Install a new retaining ring. 2.2. Connect the differential cooler pump inlet pipe (2) to the differential. A distinct snap should be heard or felt when assembling the cooler pipe to the fitting. 2.3. To ensure the cooler line is properly installed, give the cooler pipe a gentle pull. Clean any dirt from around the differential fill plug. Remove the fill plug and washer from the differential. Important: DO NOT add any limited-slip additive (friction modifier). With this new fluid (Dexron LS Gear Oil 75W-90) it is no longer required to add friction modifier. If friction modifier is added, it will cause the fluid to lose some of it's friction reducing properties as well as reducing seal life. Fill the differential with the new DEXRON® LS gear oil, P/N 88862624 (Canadian P/N 88862625). Refer to the table listed below for lubrication specifications. Check the fluid level to ensure it is even with the bottom of the fill plug hole to no lower than 6 mm (0.25 in) below the opening. Install the fill plug and washer to the differential. Tighten the differential fill plug to 35 Nm (26 lb ft). Important: Steps 8-13 are for vehicles equipped with the differential cooling system. For vehicles not equipped with the cooling system, proceed to step 14. Raise the vehicle so the wheels are about a foot off the floor. Make sure the wheels can spin freely without obstruction from the hoist or any nearby items. Start the vehicle and put the transmission in second gear. Slowly accelerate to 10 mph and hold this speed for one minute. Turn the vehicle off. Raise the vehicle. Check the fluid level in the differential. Add fluid until the recommended level is reached. Lower the vehicle. Once the differential fluid has been changed, the vehicle must be driven in 8-10 tight figure eight maneuvers to heat the fluid and allow the fluid to be worked into the clutch plates. Lubrication Specifications Application 2004-2005 XLR (Including Export) and 2005 Corvette (Non Export) 1.72 liters 1.85 quarts 2006-2008 XLR (Including V-Series and Export) and 2006-2008 Corvette (Non Z06)(Non Export) 2.0 liters 2.11 quarts 2005 Corvette Export 1.88 liters 1.99 quarts 2006-2008 Corvette Export (Non Z06) 2.16 liters 2.28 quarts 2006-2008 Corvette Z06 2.75 liters 2.91 quarts Parts Information: Description: DEXRON® LS Gear Oil Part Numbers: 88862624 (US-1 Quart) 88862625 (Canada-1 Liter) Warranty Information For vehicles repaired under warranty, use: Labor Operation: F9709* Description: Drain & Refill Rear Axle Fluid Labor Time: 0.6 hr * This is a unique labor operation number for bulletin use only. It will not be published in the Labor Time Guide. © Copyright General Motors Corporation. All Rights Reserved. Document ID# 2048181 2005 Chevrolet Corvette |
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Posted on: 2011/2/9 3:30
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2002 EBM convertible, Magnusson supercharger, cam, headers, etc. 1989 Corvette...RIP |
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RickAnthony | Re: jerking sensation while turning | ||
ASE Master Certified
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Yep I've experianced this myself, customer recently purchased an 06' and had chatter low speeds on turns. We drained and refilled the diff per TSB. drove it a short distance made some figure 8's problem solved... -=Rick |
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Posted on: 2011/2/9 3:35
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My Automotive Blog autoserviceupdated.blogspot.com CORVETTE SERVICE & REPAIR RickAnthonyMotorsports.NET |
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bogus | Re: jerking sensation while turning | ||
Grand Imperial Pooh-Bah
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Rick - You nailed what I was driving at... I wasn't sure if it was in the front or rear... and the rear made kinda more sence when I reread his question.
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Posted on: 2011/2/9 19:45
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The single biggest problem with communication is the illusion that it has taken place. - George Bernard Shaw Education is the best tool to overcome irrational fear. - me |
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Matatk | Re: jerking sensation while turning | ||
Webmaster
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What am I, chopped liver? |
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Posted on: 2011/2/9 22:27
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2002 EBM convertible, Magnusson supercharger, cam, headers, etc. 1989 Corvette...RIP |
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bogus | Re: jerking sensation while turning | ||
Grand Imperial Pooh-Bah
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Apparently.
I missed you were the OP... my bad... |
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Posted on: 2011/2/9 22:48
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The single biggest problem with communication is the illusion that it has taken place. - George Bernard Shaw Education is the best tool to overcome irrational fear. - me |
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Matatk | Re: jerking sensation while turning | ||
Webmaster
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No problem, Andy, I was just kidding. Of course, Rick has so much more hands on experience with these cars, I bow down to him at the knowledgeable one!
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Posted on: 2011/2/10 2:14
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2002 EBM convertible, Magnusson supercharger, cam, headers, etc. 1989 Corvette...RIP |
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bogus | Re: jerking sensation while turning | ||
Grand Imperial Pooh-Bah
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I know... I did miss your post, tho... and yes, Rick's got our back!
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Posted on: 2011/2/10 2:30
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The single biggest problem with communication is the illusion that it has taken place. - George Bernard Shaw Education is the best tool to overcome irrational fear. - me |
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RickAnthony | Re: jerking sensation while turning | ||
ASE Master Certified
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Yea LoL... doesn't mean I know everything.... learn something new everyday in this field.. |
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Posted on: 2011/2/10 5:48
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My Automotive Blog autoserviceupdated.blogspot.com CORVETTE SERVICE & REPAIR RickAnthonyMotorsports.NET |
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bogus | Re: jerking sensation while turning | ||
Grand Imperial Pooh-Bah
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I would bet money on that!!!
So... where is the OP??? |
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Posted on: 2011/2/11 0:09
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_________________
The single biggest problem with communication is the illusion that it has taken place. - George Bernard Shaw Education is the best tool to overcome irrational fear. - me |
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RSSMES | Re: jerking sensation while turning | ||
Guru Newb
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Thank you for your response. happens when cold more so than hot, but will go away once car has been driven to running temp, on dry asphalt, rearend fluid is up to date, auto trans, inspected front end and underneath for rubbing nothing found, stock size tires, no mods,aagghh!
Richard |
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Posted on: 2011/2/11 0:37
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bogus | Re: jerking sensation while turning | ||
Grand Imperial Pooh-Bah
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It makes me wonder if the fluid, tho new, is up to SPEC.
Are you feeling it in the wheel? Or more through the car/seat of pants? |
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Posted on: 2011/2/11 0:52
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The single biggest problem with communication is the illusion that it has taken place. - George Bernard Shaw Education is the best tool to overcome irrational fear. - me |
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Transfer |
Matatk | Re: jerking sensation while turning | ||
Webmaster
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Quote:
Richard, can you tell us more about this? When was it replaced and what was it replaced with? After replacement did the tech do some figure 8s to work it into the clutches? If you check the TSB, some cars the problem returned even after new fluid, and the solution is new clutches. Of course it could also be another problem, but pay extra attention to the rear differential. You said it happens on dry pavement, which would be a sign while turning....the outer wheel has to turn at a faster rate than the inner wheel, engaging the "slip" portion of the limited slip differential. The clutches don't slip smoothly and it chatters. Keep us updated. Matthew |
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Posted on: 2011/2/11 12:55
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2002 EBM convertible, Magnusson supercharger, cam, headers, etc. 1989 Corvette...RIP |
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