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Chevy Silverado and GMC Sierra Steering

139 messages, Last post on Jul 15, 2009 at 11:19 PM
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Replying to: suzk1000 (Nov 09, 2006 2:13 pm) |
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Replying to: jvargas (Dec 15, 2007 8:38 pm)
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Replying to: jvargas (Dec 17, 2007 4:23 pm) |
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My 2003 Chevy Silverado Z71 is making a knocking noise that I can hear and I also slightly feel it through my steering wheel when any steering input is put into it left or right at slow speeds. Also when I get up to around 35 mph I hear a squeaking noise also coming from the front end. It is totally stock just newer tires same size as stock. Ideas? Disscuss.
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Replying to: kin16352 (Dec 30, 2007 3:05 am) Here is the service bulletin: Document ID# 1893252 Subject: Clunking Noise Under Hood and Can Be Felt in Steering Wheel and/or Steering Column (Replace Upper Intermediate Steering Shaft (I-Shaft) Assembly) #00-02-35-003M - (01/31/2007) Models: 2002-2006 Cadillac Escalade Models 1999-2007 Chevrolet Silverado Models (Classic) 2000-2006 Chevrolet Suburban, Tahoe Models 2002-2006 Chevrolet Avalanche 1999-2007 GMC Sierra Models (Classic) 2000-2006 GMC Yukon, Yukon XL Models 2003-2006 HUMMER H2 Attention: This Service Bulletin DOES NOT include Mid-Size Utilities such as Buick Rainier, Chevrolet TrailBlazer Models, GMC Envoy Models or Oldsmobile Bravada. Refer to Service Bulletin 02-02-35-006A or newer for Mid-Size Utilities. This bulletin is being revised to update the repair procedure with a permanent fix. Condition Some customers may comment on a clunk-type noise coming from under the hood that also can be felt in the steering wheel. These conditions may be more noticeable when turning at low speeds on rough road surfaces. Diagnostic Tips Use the information below to help diagnose the source of the noise. • Frame Snap and/or Popping Type Noise -- A frame snap or popping type noise can be duplicated on rough or smooth road surfaces with steering wheel input to the left or the right. This type of noise can be HEARD and is typically louder with the windows rolled down. For additional information, refer to Corporate Bulletin Number 03-08-61-002F or newer -- Snap/Popping Type Noise Coming from Front of Vehicle (Remove Front Crossmember, Change Fastener Orientation). • Intermediate Shaft Clunk -- Intermediate shaft clunk is heard and FELT in the steering wheel and/or steering column area, typically while driving on rough road surfaces with steering wheel input. Correction DO THIS DON'T DO THIS Replace the I-Shaft with P/N 19153614. Do NOT lubricate or exercise the I-Shaft. Important: • I-shaft P/N 19153614 has been designed to replace previous designed dampened and non-dampened I-shafts. The physical difference in the yoke size will accommodate all vehicles listed in this bulletin. • Due to the design of the new I-shaft, it is not possible to lubricate/grease the I-shaft. Replace the steering column upper intermediate shaft with an improved design shaft that will eliminate the clunk noise using the procedure listed below. Set the front wheels in the straight ahead position. Notice: On the 2002 and later model year vehicles, the steering column LOCK was removed from the steering column. It is critical that the J 42640 - Steering column Anti-Rotation Pin is used when servicing steering columns on 2002 and later model year vehicles. Failure to use the J 42640 may result in damage to the SIR coil. Set the steering wheel in the LOCK position on 2001 and prior model year vehicles. For 2002 and later vehicles, install the J 42640 in the steering column lower access hole. From under the hood, remove the lower bolt that connects the upper intermediate shaft to the steering gear coupling shaft. Slide the shaft towards the dash in order to disengage the shaft from the steering gear coupling shaft. For vehicles equipped with adjustable foot pedals, perform the following steps: 6.1. Reposition the carpet away from the accelerator pedal position (APP) sensor. 6.2. Remove the two nuts retaining the accelerator pedal to the bulkhead. 6.3. Reposition the accelerator pedal out of the way so the intermediate shaft can be removed. From inside the vehicle, remove the upper bolt from the upper intermediate steering shaft (1) to the steering column connection. Remove the upper intermediate steering shaft assembly. 8.1. From inside the vehicle, slide the shaft down and off the steering column. 8.2. From inside the vehicle, slide the upper intermediate shaft through the dash boot seal and remove the shaft from the vehicle. Replace the upper intermediate shaft. Install the upper intermediate steering shaft through the dash boot seal and slide the lower end into the steering gear coupling shaft. Raise the upper end of the intermediate steering shaft and install into the steering column shaft. Install the upper bolt and nut. Tighten Tighten the bolt to 47 N·m (35 lb ft). Install the lower bolt and nut. Tighten Tighten the bolt to 50 N·m (37 lb ft). For vehicles equipped with adjustable foot pedals, perform the following steps: 14.1. Reposition the accelerator pedals into position on the bulkhead. 14.2. Install the two retaining nuts. Tighten Tighten the nuts to 20 N·m (15 lb ft). 14.3. Reposition the carpet into place. Parts Information Part Number Description 19153614 Shaft - Upper Intermediate Steering Warranty Information For vehicles repaired under warranty, use: Labor Operation Description Labor Time E7700 Shaft, Steering Intermediate - Upper -- Replace Use Published Labor Operation Time GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". They are written to inform these technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions, and know-how to do a job properly and safely. If a condition is described, DO NOT assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See your GM dealer for information on whether your vehicle may benefit from the information. WE SUPPORT VOLUNTARY TECHNICIAN CERTIFICATION © Copyright General Motors Corporation. All Rights Reserved |
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Replying to: kin16352 (Dec 30, 2007 3:05 am) Ihad this shaft replaced in Nov. and it did absolutely nothing for the 'Chubaka Noise" coming from the left side of my '04 Silverado, but tghe mechanis did tell me that replacing the steering column would get it done and that greasing the shaft was not possible due to it being "closed". On the side I travelled to Colorado and on the return trip I noticed the speedometer was at 120mph! I pulled off to the side of the road and turned off the engine and to my astonishment was still doing 75-80mph! So, I had to "guestimate" the speed by way of other cars on the highway. To my surprise, when I arrived home there was a letter from GM telling me that they'd had complaints about the "jittery" instrument panel and I got it replaced for free at the dealer. All I had to do was give them my VIN, they ordered the part and replaced it in less than 45 minutes. I can't understand why the delay on the steering column.... |
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| I have an 04 Yukon XL and at about 18000 miles the steering wheel would lock up at slow parking lot type maneuvers. After having the steering pump replaced and a special larger type steering valve that is associated with the pump replaced it still had the same problem and the highly trained dealership mechanic and the GM rep. that he talked to had no clue so they gave that familiar answer that it is a characteristic of the hydroboost system. I didn't accept that for an answer because the first 18000 miles I had no problem. So I went to another dealer and at the same time contacted the higher ups at GM. The mech. at the new dealership said that my problem was not the hydroboost system (which will give a slight tug at the wheel when turning and braking, but that is it...just a slight feeling...NOT lock up for a split second) he said something is wrong with the steering box (which the factory rep. told the first mechanic not to replace) When the new steering box was replaced the problem went completely away! There is some type of written bulliten about replacing the steering box for this problem but it was not as available as other bullitens are. hope this helps. | |
| I have a 1997 2500 series chevy HD pick-up truck. It has variable assist steering .I change thr power steering pump and the steering box but it still doesn't get hydraulic pressure to steer the truck and there are no codes. How do I solve this problem? Rich | |
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I am a long time Suburban owner, but till now they where all 1500's with vacuum assist brakes. I just purchased a 98 K2500 Suburban w 7.4 and hydroboost. the brakes are great (compared to my 2 97 K1500's one LT, one is Police issue), but the has a high pitch whining sound that is RPM affected, especially when cold, and the steering is noisy at low speeds, especially at the end of the steering limits, and steering assist is almost non existent when backing in low speeds. Anyone can give me some pointers , before I start to replace the pump or steering components. I searched the Suburban forums but most of them do not have info on 2500 w. hydroboost, as this is more of a Silverado/Sierra feature, and on this forum most reference is for the 99 and newer. Tnx Ty |
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Replying to: johan (Nov 24, 2006 5:28 pm) |
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