01 4x4 clunking in 4hi passenger side
#1
10-29-2018, 09:00 AM
01 4x4 clunking in 4hi passenger side
Hey all, been doing some searching around the web and am having trouble finding an answer. I have had issues woth 4wd in the past and taken it into have vacuum hoses replaced that were dry rotted and cracked. Since then I get a clunking sound coming from the passenger side front every so many cycles it seems. My assumption is a cv axle. The blazer had sat for a while as I used it only to take my mother to her doctor appointments every 6 months, then after she passed away it sat for a couple years. Has roughly 108xxx miles on it. I just wanted to get more opinions before i just buy a cv axle and find out that was’t the culprit. Thanks in advance and apologies if it is a repeat thread, but with as much research as I have tried I have been unable to find a good answer, or a similar question for that matter.
It only clunks in 4wd, 2wd is nice n quiet...
I also have an ABS light on and ABS is not working. That came on after the clunking though.
Would like to get it sorted out before it gets too cold.
It only clunks in 4wd, 2wd is nice n quiet...
I also have an ABS light on and ABS is not working. That came on after the clunking though.
Would like to get it sorted out before it gets too cold.
Last edited by White01blazer; 10-29-2018 at 09:15 AM. Reason: left out information
#2
10-29-2018, 09:46 AM
Hey all, been doing some searching around the web and am having trouble finding an answer. I have had issues woth 4wd in the past and taken it into have vacuum hoses replaced that were dry rotted and cracked. Since then I get a clunking sound coming from the passenger side front every so many cycles it seems. My assumption is a cv axle. The blazer had sat for a while as I used it only to take my mother to her doctor appointments every 6 months, then after she passed away it sat for a couple years. Has roughly 108xxx miles on it. I just wanted to get more opinions before i just buy a cv axle and find out that was’t the culprit. Thanks in advance and apologies if it is a repeat thread, but with as much research as I have tried I have been unable to find a good answer, or a similar question for that matter.
It only clunks in 4wd, 2wd is nice n quiet...
I also have an ABS light on and ABS is not working. That came on after the clunking though.
Would like to get it sorted out before it gets too cold.
It only clunks in 4wd, 2wd is nice n quiet...
I also have an ABS light on and ABS is not working. That came on after the clunking though.
Would like to get it sorted out before it gets too cold.
Last edited by LesMyer; 10-29-2018 at 09:48 AM.
#3
10-29-2018, 09:49 AM
I will try that either later or tomorrow, I have to go to work shortly. My original thought was it was trying to lock in but couldn’t. If it isn’t locking in, what is the fix for that?
#4
10-29-2018, 10:06 AM
Here's some reading for you. Problem described here is really opposite of what you describe, but its the same mechanism that I'm talking about.
https://blazerforum.com/forum/tech-a...4hi-4lo-41226/
Maybe things are just sticky from sitting and might just loosen up if you can get them to work once. Worst case would be the locking mechanism itself.
Last edited by LesMyer; 10-29-2018 at 10:21 AM.
#5
10-30-2018, 08:33 AM
i got ‘er in the garage this morning and did what you said, it spun just a tad, but did not go very far, tried with driver’s side as well and got the same.
#6
10-31-2018, 07:21 AM
Sounds like it is locked in. What I described does not appear to be your problem. Does your noise only happen when turning, or does it do it when you are going straight as well?
Last edited by LesMyer; 10-31-2018 at 07:23 AM.
#8
10-31-2018, 02:36 PM
Maybe it's a wheel bearing? Wheel bearing has the ABS sensor in it. Could be more than coincidence. Honestly I'm just guessing at this point.
#9
10-31-2018, 04:17 PM
wouldn’t the clunking happen in 2hi as well though if it were the wheel bearing? Wheel bearing is new acdelco a year ago as well. Old one was a hummin lol
#10
11-01-2018, 04:12 PM
I don't think that buying a new axle will solve the problem You have. On 4WD the front axles are engaged to the transfer case shaft, while on 2WD they aren't. The axle is hard linked to the wheel, so the cv joint moves constantly, no matter it is 2WD or 4WD. I suspect there is rather something wrong with Your front differential. When it locks on, it transfers the motion from the transfer case shaft to the axles and gives you that clunking sound. When You disengage, the axles are uncoupled from the transfer case shaft and the sound disappears... Did You check the oil level or the axle seals for leaks?