Shop Chevrolet Control Arms

I have a 1989 Chevrolet S-10 Tahoe pickup, 4.3 v6, and I am having problems with the wiper control, and cruise control. This truck has the cruise/wiper/turn signal combo on the column mount control arm.The wipers will not shut off. They are coming on every 45 seconds or so, and the wiper control switch will not shut them off, when you turn the control arm (switch) you either get full speed, or the 45 sec intermittent speed (there does not appear to be any other setting contacts being made). I have to pull the fuse to stop them.

The cruise control does not function at all. The turn signals, and headlight dimmer/bright works.

I bought this truck even though it has this problem but I have never worked on these systems. I have purchased a new control (cruise/wiper switch control assembly), and a turn signal switch assembly. Am I on the right track?

No, I doubt you are on the right track. There should be a replaceable pulse circuit board on the motor that is responsible for parking and pulse control.

Thanks for the great info. I looked for a pulse circuit board online, found one for $22.00 and have it on order. I have been frustrated with this, and after researching this site, and receiving your reply, I am starting to feel better about solving this problem. Thanks again Hammer Time.

Hi, we heard a clanking in the back of our car so we brought it in for service. Seems that right rear lower trailing (trailering?) arm was snapped in two.
1. Is it safe to drive in this condition?
2. It seems this is not under my 3 year warranty because they claim I ran over something, so it's collision related. Does this sound right? I was never in an accident. Can I fight this somehow?
3. Does $250plus tax sound right to install the new part?

Thanks in advance!

Ok: So it's not just those pins - you could do without those entirely. The bar that hold rear axle and the controls arms if independant from moving forward or rear like I think you are talking about are mandatory! There would be another for side to side control. I just surfed the whole web for an exact good pic of what GM used for this.

They can be rounded steel bars also but the same thing - they shouldn't just up and snap! These bars are stong! I find the weaker link to be the bushings which could wear out, or perhaps welded brackets for this stuff on control arms, axle itself, or the body/frame of vehicle.

If this vehicle uses "leaf" springs they can do all the work for front to rear forces and side to side but I don't know if this model did that. That's usually super HD stuff for later vehicles that would carry heavy loads.

While I'm here........ the bushing of parts like this usually have a barbed metal inner sleeve where a bolt goes thru. Those must be tighten up in the same position the vehicle would be sitting on the ground with wheel taking the weight or the torque of the rubber can alter ride height as the rubber is vulcanized to the metal parts. Not this but for some front end parts with replaceable bushings like those (idler arms for example) can cause the car to pull to one side.

I was a tad surprised at that estimate from a dealer for the job!

T

2006 Chevy Uplander, 2.5l engine, 160k KMs

I have a heavy metal-on-metal clunk (sounds like a dead shock) in my rear of my 06 Chevy Uplander. Even the smallest of bumps cause the clunk. I put on new shocks and a new trackbar (both of which I was told was the problem). There are no struts on this model, just springs and shocks. There's nothing broken on the springs.

The only other thing I could think of are the control arm bushings but there's no play in them at all. I removed the spare tire and my storage area is empty. Also checked for play in the side and rear doors - all good. Any idea what is causing the sound, and more importantly, how to stop it?

Agreed,shouldn't be too hard to pinpoint, especially if you have Chassis Ears as HT mentioned.

Check into these TSB's, may apply to your concern

Subject: Noise Or Clunk In The Rear Suspension - keywords bushing clunk noise rattle rear suspension thump #PIT3323C - (01/23/2007)

Models: 2005-2007 Buick Terraza 2005-2007 Chevrolet Uplander 2005-2007 Pontiac SV6 2005-2007 Saturn Relay



This PI was superseded to update Model Years. Please discard PIT3323B.
The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI. Condition/Concern:
Customers may report loud clunk or noise while driving in the rear suspension of their crossover sport Van equipped with FE1, FE2 or FE3 rear suspension. The noise maybe described as the muffler hitting the floor pan or a loud slapping noise. Recommendation/Instructions:
Inspect and replace the rear trailing arm bushing P/N 10341351 as needed.
Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.




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Subject: Stiff Rear Upper Suspension Or Shocks Clunk Over Bumps - keywords bushing cargo GMT201 noise rear #PIT3861A - (08/04/2006)

Models: 2005-2007 Buick Terraza 2005-2007 Chevrolet Uplander 2005-2007 Pontiac SV6 2005-2007 Saturn Relay Cargo or Incomplete Mobility Vehicles Only



This PI was created to add 07 MY. Please discard PIT3861.
The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI. Condition/Concern:
If the customer/fleet operator finds the suspension too hard (shocks clunk because of full extension over bumps), ask how the van will be used. If it will be loaded with several hundred pounds, the suspension will be alright. If it will be used predominately with light loads and the customer is objecting to the ride characteristics see recommendations below. Recommendation/Instructions:
Replace the rear springs with 22132418 which will reduce the spring preload by 600 pounds

1. Make sure the customer is objecting to the ride characteristics, not the dealer sales department.
2. Record trim heights with the original and the replacement springs and forward the information to tom.geist@gm.com.