Last post on Oct 27, 2013 at 1:07 PM
You are in the GMC Safari & Chevy Astro
What is this discussion about?
GMC Safari, Chevrolet Astro, Van
#1636 of 1973 Astro 2001 - Rear End Thump
Sep 18, 2007 (4:27 pm)
I have a 2001 Chevy Astro 2wd w/ 55,300 miles
I recently had the rear end replaced due to a bad diff (as per mechanic). There was a constant noise coming from the rear when I accelerated. Now I'm getting a thumping sound from the rear when I release the brake after stopping. I've been back and forth w/ the mechanic as he does not seem to know what the problem is. First he thought and still thinks its the brakes not releasing properly. I think it may be a bad rear end from the salvage.
Can anyone provide guidance as it's getting riduculous going back and forth to the mechanic.
#1637 of 1973 Re: Astro 2001 - Rear End Thump [astrovette]
Sep 25, 2007 (12:55 pm)
Actually, from the sounds of things, your rear brake isn't releasing. And although you didn't specify a side, I'll tell you I'm 98% sure it's the passenger side rear. And you may be able to get your mechanic to fix it, but it will probably come back. Not sure why, but believe me, after owning GM cars since 1984, I haven't really found any (other than the smaller cars cavalier, sunbird, etc.) that didn't have this problem. I have 2 1994 Astros and a 1995 Safari and guess what, they all have the same problem. Not your rear end though, not in my opinion.
#1638 of 1973 Re: Astro 2001 - Rear End Thump [grinderbeatudo]
Sep 26, 2007 (7:31 am)
Thanks for the feedback.
What would the mechanic need to do to fix this problem?
The issue I have is that I never had this problem before the rear was changed. Seems to me now that one things goes in the Astro everything else will start going. Is it worth the hassle and the money? I'm betting you've had the same other issues that I've been experiencing & reading about with the astro's: door locks not working, driver side windows getting stuck, abs light & brake light staying on, etc.....
#1639 of 1973 Re: need help solving idle problem [kk2400]
Sep 26, 2007 (6:23 pm)
i am having the same problem. did you get yours fixed and what was it.
i replaced all most every thing on my van.
thanks email is mccreary1980yahoo.com.
thanks for your time
#1640 of 1973 Re: need help solving idle problem [rmccreary]
Sep 27, 2007 (5:47 am)
If your speaking about the thumping problem, no because the mechanic still has not found what the problem is (after too many return visits back to him) and I'm trying to get some feedback as to how it can be fixed.
The problem with mine is that it doesn't happen automatically. The van needs to be driven awhile before it starts acting up, especially in bumper to bumper traffic or if I'm at a light and I release the brake.
Don't know if I want to keep investing in the vehicle if something else just keeps on going.
#1641 of 1973 Re: Beef-up suspension [drumcircle]
Sep 28, 2007 (5:27 pm)
Yes. One can easily remove the "factory mush" rear suspension. One method is to install Air Bags (like the ride right system) and the other method is to install Timbrens. If wondering, Timbrens are like air bags without air inside them.
And if you want, you can also install Timbrens on the front - if you want to reduce suspension depth and ease of movement on its front. But installing Timbrens on the rear is a great first step.
With Timbrens, your van's unloaded ride comfort is NOT changed. However, your van's rear sag (from loaded weight of onboard cargo or trailer tonque weight) is removed. And the best part is, the more downward pressure on the Timbrens, the more the Timbrens work. If wondering, I have Timbrens (2,000 lbs verison) on the rear of my 2001 Safari van, and don't leave home without them. Seriously, best suspension improvement product I ever bought for my van. I'd buy it again - without hesitation. For more details, surf:
Hope this helps...
#1643 of 1973 Re: need help solving idle problem [rmccreary]
Sep 29, 2007 (6:57 am)
Just picked up van Astro yesterday evening. Did some driving last night and this morning and so far have not felt or heard anything. Unfortunately, mechanic would not tell me what he did (I guess he felt intimidated as I had brought along a buddy who has worked on diffentials it the past for some opinions. Last time I'm going to him for any add'l work). I did feel the brake pedal with less tension.
Hopefully this is the end.
Thanks for your time and input.
#1645 of 1973 Re: Beef-up suspension [spike99]
Sep 29, 2007 (7:09 am)
So installing the Timbrens will make the thumpimg noise go away? Any idea what's causing it? Please advise how much you paid for them? Any idea what someone may charge to install them?
FYI, I reponded to rmccreary question with respect to the mechanic doing something else to try and fix the problem (see#1643)
Thanks for your time & input