Hey guys,
have a problem I hope you can help me with. As some of you know I have a 01 5.3 Silverado that wifey usually drives... well she has been telling me it has a problem for a little while but never really got the point across as to what the problem was.... well today I figure out that you have to go WOT at a stop to get it to F up.... When you go to WOT there are a whole series of very LOUD pops that make the whole truck shudder. While this is going on I get the feeling that it is located in the left side near the trans.
right after that it feels like the truck has a huge drag on it, one time it feels like the drag is centered in the front end the next time it felt like just the rear end was locking up.
Never run into anything like this before.... At first I thought is was the trans but the locking up feeling at different ends is throwing me...
Then I was wondering if it could be the ABS going nuts as the pops occur at about the same frequency as the abs ticking but MUCH louder. Unfortunately the truck will not start without the ABS fuse in it..
Any ideas guys????
Thankx in advance

OH, this truck is not drag raced, never had a powerbrake, there may have been an occasional street confrontation but no major beatings on this one.... 63,000 miles and the ATF is not low.....

TJ

 

Perhaps I found my own answer....

TSB Driveline - Launch Shudder/Vibration on Acceleration 02-04-17-001 02/01/02

got to replace the propeller shaft & Pinion flange!!! oh well guess that is better than the trans!!!

TJ

 

interesting?? how did you find the problem??? my brothers truck has a vibration everytime he takes off @wot from a stop??? not bad but it is very noticable... any pics of something to help out a???

 

I drive the truck all the time as wifey likes a chauffeur but I do not as a rule drive it like I stole it. Now wifey is another matter as she is VERY aggressive behind the wheel.... so everytime I took it out I did not find anything wrong... Now she comes home rather volcanic today giving me **** about not wanting to work on HER truck....... sooooo I took it out and nailed it to the wall and violia! there was the problem! Did not realize that I needed to treat it like I was at the drag strip! No pix yet but according to the TSB : well let me post part of it:

Driveline - Launch Shudder/Vibration on Acceleration File In Section: 04 - Driveline Axle Bulletin No.: 02-04-17-001 Date: February, 2002 TECHNICAL Subject: Launch Shudder/Vibration on Acceleration (Replace Propeller Shaft and Install New Pinion Flange/Seal) Models: 1999-2002 Chevrolet and GMC C1500 Series Extended Cab Pickup Models (Silverado, Sierra) With 4L60-E Automatic Transmission (RPO M30) Important: Implementation of this Service Bulletin by "GM of Canada" dealers requires prior District Service Manager approval. Condition Some customers may comment on a vibration when accelerating from a stop. This is also known as launch shudder. This condition may occur between 0-40 km/h (0-25 mph) and be more noticeable when the vehicle is carrying cargo or used for towing. Correction A new propeller shaft, P/N 15071486, has been developed to correct this condition. The new propeller shaft incorporates dual double cardan joints on the center and rear joint positions. The new propeller shaft will require the installation of a new pinion flange kit, P/N 15071485. The pinion flange kit consists of the following components: ^ A pinion flange ^ Hex bolts (four) ^ A Pinion seal ^ A rear axle drive pinion nut Replace the propeller shaft with the new propeller shaft using the following procedure. Use the part numbers listed. 1. Remove the propeller shaft assembly and the center bearing. Refer to the applicable Propeller Shaft Replacement procedure in the Propeller Shaft sub-section of SI2000. Important: In step 2, you must measure the pinion and differential preload. This information is needed to set the preload of the new pinion flange to the correct specification and to reduce any rear axle noise concerns. 2. Remove the drive pinion yoke and the pinion oil seal. Refer to the Drive Pinion Flange/Yoke and/or Oil Seal Replacement procedure in the Rear Drive Axle sub-section of SI2000. Important: In step 3, use this procedure as a guideline to install the pinion flange to the drive pinion and to set up the proper pinion bearing preload. 3. Install the new pinion oil seal, the new pinion flange and the new drive pinion nut. Refer to the Drive Pinion Flange/Yoke and/or Oil Seal Replacement procedure in the Rear Drive Axle sub-section of SI2000. 4. Install the new propeller shaft assembly and the new center bearing. Refer to the applicable Propeller Shaft Replacement procedure in the Propeller Shaft sub-section of SI2000. Tighten ^ Tighten the propeller shaft flange bolts to 70 N.m (52 lb ft). ^ Tighten the center bearing support nuts to 40 N.m (30 lb ft). 5. After completing the repair, operate the vehicle in order to verify that the condition has been corrected. Parts Information Parts are currently available from GMSPO. Warranty Information For vehicles repaired under warranty use the table as shown.

....

TJ

 

so this is not a recall correct?? did you do this by yourself??

thanks..

 

No, it is not a recall.... just a technical service bulletin... it should be covered by warranty if your vehicle is still covered... Seeing as how I just found out tonite and the truck is still under warranty, as much as I hate to it will see the dealership... I wouldst imagine that new driveshaft is Very expensive...

TJ

 

LOL.... I guess this wound up being in the wrong forum....

TJ