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Chevrolet Impala Steering/Suspension

115 messages,  Last post on Dec 04, 2008 at 9:48 AM

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What is this discussion about? Chevrolet Impala, Steering, Suspension, Sedan


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#76 of 115
Re: Faint pop when turning - update [nosirrahg] by fox76
Jan 26, 2007 (12:18 pm)
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Replying to: nosirrahg (Dec 28, 2006 6:35 pm)

My popping is back. It has only been about 1K miles since they fixed it by tightening the cradle bolts. Guess I will be going back soon! So either it really is not the cradle bolts (that fix masked the problem) or they need to figure out how to keep those darn bolts from "flexing". I am glad to hear that after 100K you have not had any cradle problems.
#77 of 115
Re: Faint pop when turning - update [fox76] by ianmcdca
Mar 20, 2007 (10:52 pm)
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Replying to: fox76 (Jan 26, 2007 12:18 pm)

I`m new here and I realize that this is an old post, but my `02 3.4 has the same pop/knock/squeek/creek. I had the ISS done so thats not the issue. It`s not the struts. Had the control arm bushings replaced as well as the stabilizer links and bushings. Had the mechanic tighten the cradle and what do you know! Gone...for 2 weeks. Came back. There is a fix. I`m doing mine this week.
 
Check out this link for the TSB.
 
Ian
 
http://forum.newimpala.com/cgi-bin/yabb/YaBB.pl?num=1101054185/30
#78 of 115
Re: Faint pop when turning / acceleration issue [nosirrahg] by bena8837
Apr 06, 2007 (7:33 am)
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Replying to: nosirrahg (Jan 22, 2007 7:56 pm)

I'm sorry but I was just reading the messages about problems with the popping of ISS on 02 Impala and I have the same problem and have had it repacked twice but doesn't last long. My question is, what is the PBBlaster treatment?
Is it something I can buy and where can I find it?
 
Thanks
#79 of 115
Re: Faint pop when turning / acceleration issue [bena8837] by nosirrahg
Apr 06, 2007 (9:55 am)
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Replying to: bena8837 (Apr 06, 2007 7:33 am)

PBBlaster is definitely something you can do, and you can buy a can of it at most auto parts stores. I will say that my ISS clunking has started to creep back again, so don't think PBBLaster is a one-time cure, but it did seem to solve the problem for several months (and even now I'm just starting to feel some clunking when turning occasionally; nowhere near like it was before). It isn't strong enough at this point to annoy me, but if/when it does I'll give it another shot of this stuff and see if it goes away again.
 
Basically all you have to do is look under the steering wheel and there's a panel that clips in the front and hooks on the back (towards the firewall). The under dash light on the driver's side is on this panel too, so it will drop down when you disconnect the front clips. If you twist the light it will come out of the panel, which A) keeps the panel from hanging on the wires, and B) actually provides a handy mini-flashlight to use while you're doing this.
 
Once you lower the panel, you'll see a big rubber sleeve that covers the steering shaft. If you pull down on this (sliding the top portion down towards the floor, sort of like taking off a sock), you expose the ISS, which looks like a basic universal joint. All I did was spray the PBBlaster on (and especially down the middle, there's sort of a hole there that runs down the shaft) this area for maybe 10 seconds, then slipped the rubber sleeve back up, replaced the light fixture and cover panel, and that's it. Admittedly the rubber sleeve on mine was kind of stiff, so it takes a fair amount of effort to hold it out of the way, and it would help if you had a straw (like you get w/WD-40) to pinpoint the spray. Since you'll be using one hand to hold the sleeve back, and the other to spray the lube on, it really does come in handy to position that light in advance so it's shining where you need it.
 
Give it a shot; it may not be the final fix, but at least it has lasted several months for me. I don't remember what the PBBLaster cost me, but it's probably $3-4 for a standard sized can. And you'll only use a small amount of the stuff, but it's good to keep around for rusty bolts and such.
#80 of 115
Re: Faint pop when turning / acceleration issue [nosirrahg] by wheelmans
Jul 03, 2007 (5:20 am)
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Replying to: nosirrahg (Apr 06, 2007 9:55 am)

I've had this same problem for several months with my 05 LS. The dealer lubed the ISS a couple months back and brought my car back in a few days later. He told me that GM was working on a new design for the ISS and to call back in a month or two. I called back and scheduled for 10 Jul to replace the ISS. I'll post back with the results. I have my fingers crossed. I'll check to see if this might be part of a recall or something. I have an extended warranty so it's still covered.
#81 of 115
Re: Faint pop when turning / acceleration issue [wheelmans] by nosirrahg
Jul 03, 2007 (9:14 am)
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Replying to: wheelmans (Jul 03, 2007 5:20 am)

Too late for my 2000 model warranty-wise, but depending on what exactly they replace and the cost involved it might be worth looking into if you have good results with it. PBBlaster worked for a time, but I've noticed recently my problem is back. I'll probably hit it again with PBBlaster and see if it helps, but promise of a long-term solution sounds good.
 
See if they can show you the difference between the old design and the new - heck, maybe even take a digital camera and shoot some pictures and post them here; there'd obviously be several other folks who'd be interested in seeing them.
#82 of 115
Re: Slip in steering wheel when turning [nosirrahg] by whitecloud2004
Jul 27, 2007 (2:50 pm)
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Replying to: nosirrahg (Jun 11, 2006 9:04 pm)

Hey, I have an 04 Impala and have the same clunking sounds, almost feels like the engine is knocking around but I can tell it's in the steering. Have 39000 miles and just had to replace the rear pads and rotors. Rotors were so corroded, rusted inside with big chips broken out of the steel. Car started to
have break judder when stopping - very annoying. It cost me $361 and they said I need the front brakes done too.
Today one of the wheels started humming at 20mph 2 days after getting new brakes. Am I in for it now or what?
 
missy rissy
#83 of 115
Re: Faint pop when turning / acceleration issue [nosirrahg] by nosirrahg
Oct 09, 2007 (5:45 pm)
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Replying to: nosirrahg (Jul 03, 2007 9:14 am)

FWIW my ISS continued to get clunkier and clunkier since July; this evening when I got home I hunted down my can of PBBLaster and gave the ISS a good long spray of the stuff. I don't know exactly how much I sprayed in there, but I tried to send most of it down the interior of the shaft that runs from the universal joint-looking piece under the dash downwards. If I had to guess, I probably sprayed 2-3 fluid ounces down there; also sprayed a little around the U-joint itself just for the heck of it.
 
Just got back into the car to run a quick errand, and the clunkiness is totally gone, and the steering is much less vague than it had been. One of the reasons I finally sprayed it again is I'd noticed the car had begun to drift a little, and I remembered before having the same problem that went away with the application of the lube.
 
One suggestion; it's kind of awkward to get to the ISS under the dash, but what I did this time that seemed to work pretty well was to open the driver's door and then basically stick my legs under the car, so I ended up sitting on the ground.
#84 of 115
2006 Impala SS ISS Replacement by quietpro
Nov 11, 2007 (6:19 am)
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I thought I would post about an ISS issue I had. I'm a previous owner of an '02 Monte Carlo SS and am familiar with the ISS problem. With my '02, the diagnosis was the ISS but not serviceable issue, only a maintenance/annoyance as far as the dealership was concerned.
 
On my '06, at approximately 25K miles, my ISS started clunking but this time it got progressively worse. It was bad enough by the time I took it in (at 27.5K) that it would clunk while braking and when initially accelerating from a stop (as well as any other car movement below 35 mph). I had resigned myself to being told it was a maintenance issue and figured they would only lubricate it but as it turns out, they replaced it as defective. I didn't get to talk to anyone in the service department, something I'm not real happy about, but I am pleased that the problem was resolved with a replacement. The ISS problem had been progressing for so long now that I had learned to live with it to a degree and now that it's fixed, the car feels SO much better to drive. I don't know if this is a new problem regarding the ISS or if mine was worse than normal but I definitely wanted to share since it's usually not a replacement. Hopefully this will help others out there!
 
By the way, can anyone tell me if while replacing the ISS, is it likely that the steering wheel could be set out of alignment. I now seem to have to hold the wheel about 5-10 degrees to the right. The overall alignment seems the same but I'm pretty sure the wheel is off. I don't want to make a fool of myself if it's in my head but I'm pretty sure they messed it up. Thanks!
#85 of 115
Re: 2006 Impala SS ISS Replacement [quietpro] by cnw
Nov 11, 2007 (6:38 pm)
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Replying to: quietpro (Nov 11, 2007 6:19 am)

Ron, Not sure what the procedure is when they replace the ISS, but it is definitley something they could have screwed up. If I'm not mistaken, the ISS is a splined shaft, and in replacing it they probably got it off by one tooth. One way to check is to turn from center, straight ahead to the full left and right position (lock to lock, as they used to say). It should take an equal number of turns (and fractions of a turn) in each direction. Clark

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