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Message
Random knocking noise in truck rear axle.
Posted on 11/15/20 at 12:39 pm
Posted on 11/15/20 at 12:39 pm
So, I have a 2011 Nissan Titan: ~120,000 miles and approximate KBB value is $10,000.
Over the last three weeks, I have been hearing knocking noises that seem to be coming from the rear axle. I don't hear it all the time, but mostly when I am coasting or slowing down. It never happens when I am not moving, and it does seem to get faster when I am going faster. I had a brake job done after I first heard the noise, and that didn't stop it, so that's not the problem.
The local dealer said it needs a whole new axle, which would cost up to $6000+. Apparently, the Nissan policy is to replace entire axles instead of doing specific repairs.
The local transmission experts say that they didn't hear it and the rear differential oil looked normal.
The noise is regular enough to be worrisome that it might be something that will leave me.
Which option would you do?
1. Keep driving based on transmission shop advice, and deal with it if it fails.
2. Go ahead and pay the dealer to replace the axle.
3. Trade the truck in on a new or late-model used F-150.
Thanks in advance.
Over the last three weeks, I have been hearing knocking noises that seem to be coming from the rear axle. I don't hear it all the time, but mostly when I am coasting or slowing down. It never happens when I am not moving, and it does seem to get faster when I am going faster. I had a brake job done after I first heard the noise, and that didn't stop it, so that's not the problem.
The local dealer said it needs a whole new axle, which would cost up to $6000+. Apparently, the Nissan policy is to replace entire axles instead of doing specific repairs.
The local transmission experts say that they didn't hear it and the rear differential oil looked normal.
The noise is regular enough to be worrisome that it might be something that will leave me.
Which option would you do?
1. Keep driving based on transmission shop advice, and deal with it if it fails.
2. Go ahead and pay the dealer to replace the axle.
3. Trade the truck in on a new or late-model used F-150.
Thanks in advance.
This post was edited on 11/15/20 at 12:43 pm
10
Posted on 11/15/20 at 12:45 pm to Thorny
Don't pay the dealer to do anything. It's out of warranty so there's no reason to pay the premium price.
It might just be a U joint, which is probably a $30 part and a couple hour job that any shop can handle. If it isn't, have a shop pull the diff cover off and make sure everything looks ok.
Again, do not pay a deal $6k to put a new axle in there. Thats rape. Pay a local shop to diagnose/repair it or trade it in if you don't like the truck.
It might just be a U joint, which is probably a $30 part and a couple hour job that any shop can handle. If it isn't, have a shop pull the diff cover off and make sure everything looks ok.
Again, do not pay a deal $6k to put a new axle in there. Thats rape. Pay a local shop to diagnose/repair it or trade it in if you don't like the truck.
Posted on 11/15/20 at 1:35 pm to Thorny
Probably a U joint on the drive shaft
Posted on 11/15/20 at 1:46 pm to Thorny
There’s a lot of things that can make sounds when slowing down. It’s possible you have a bad pinion bearing, u-joint or June. Bring it to a shop that specializes in driveline work. If it’s the differential, just buy a used axle and have it put in. It should be under $1000 if you DIY or $2000 for a mechanic. car-part.com Is a good resource for locating used parts.
Posted on 11/15/20 at 2:31 pm to Thorny
I'd check my u-joints or if a two piece driveshaft, the swing bearing too before I'd blame the rearend. Just seems easier to weed out any issues.
Posted on 11/15/20 at 4:03 pm to Thorny
quote:
Which option would you do?
3. Trade the truck in on a new or late-model used F-150.
Bc I like new trucks. Get that 3.5 ecoboost
Posted on 11/15/20 at 4:39 pm to Thorny
Nissan had a big problem with Titan rear ends. Google it. May be why they just said replace the whole thing.
Posted on 11/15/20 at 6:04 pm to Thorny
Check your exhaust, you might have a loose hanger. Might check your spare tire too, if it's hanging underneath. Change out your u-joints. Check the play in the rear yoke, going into the differential.
Does that truck have a 2 piece driveshaft? If so, it could be your hanger bearing, I'm assuming it's 2wd.
Does that truck have a 2 piece driveshaft? If so, it could be your hanger bearing, I'm assuming it's 2wd.
This post was edited on 11/15/20 at 6:17 pm
Posted on 11/15/20 at 6:39 pm to Thorny
Sounds like a very cheap ujoint replacement.
But... I've never heard anyone describe that sound as knocking.
But... I've never heard anyone describe that sound as knocking.
Posted on 11/15/20 at 6:46 pm to X123F45
quote:
But... I've never heard anyone describe that sound as knocking.
Not until they hit the pavement, then it's a hell of a knocking noise.
Posted on 11/15/20 at 7:59 pm to Thorny
go to pull apart and get another one
Posted on 11/15/20 at 10:01 pm to Thorny
To everyone: I doubt it is a u-joint, as I had a very reputable transmission shop look at it, and I'm pretty sure they would have checked that.
I will check the exhaust and the spare tire.
Anything else?
Thanks.
I will check the exhaust and the spare tire.
Anything else?
Thanks.
Posted on 11/15/20 at 10:05 pm to Thorny
So many ujoints in the transmission.
Posted on 11/15/20 at 11:27 pm to Thorny
quote:
Anything else?
One other thing you could check: I've had a noisy antilock brake valve before that made a loud fluttering noise sometimes, especially during hard braking. This wouldn't be touched during a normal brake job.
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