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Tim Mohr
Tim Mohr, ASE MASTER TECH
Category: Nissan
Satisfied Customers: 560
Experience:  30 YRS EXPERIENCE, FOREIGN AND DOMESTIC, GAS AND DEISEL
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Encountering random and periodic "ccups" in the axle while

Customer Question

Encountering random and periodic "hiccups" in the axle while driving on the freeway. Any ideas what may be causing this?
Submitted: 1 year ago.
Category: Nissan
Expert:  Jay replied 1 year ago.

Hello my name is ***** ***** thank you for your Question

When you say it hiccups, do you mean the engine cuts out? or the transmission engagement hiccups?

Customer: replied 1 year ago.
No, the engine and transmission seem to work fine when this happens. It feels like the rear axle slips and the car tries to catch itself. No lights turn on when it happens.
Expert:  Jay replied 1 year ago.

I have seen rear diff's go. but it would be more consistent. How often would you say it does this?

Customer: replied 1 year ago.
It happened at least 10 times over a 600 mile trip.
Expert:  Jay replied 1 year ago.

How many miles do you have on the truck?

Customer: replied 1 year ago.
107000
Expert:  Jay replied 1 year ago.

Have you checked the trans fluid condition by any chance?

I am wondering if you are developing a transmission issue.

Customer: replied 1 year ago.
I just had the transmission serviced (flushed) 4 months ago.
Expert:  Jay replied 1 year ago.

Who did the service?

Customer: replied 1 year ago.
A local shop.
Expert:  Jay replied 1 year ago.

Here is the big question.

These transmissions require a special trans fluid. If the incorrect fluid was used, this can cause the transmission to prematurely fail. It may not happen right away, but like your situation, it can happen 3 to 4 months after the fact.

So do you know what type of fluid they used?

Customer: replied 1 year ago.
No idea.
Customer: replied 1 year ago.
Wouldn't the RPMs go up if there was a transmission problem?
Expert:  Jay replied 1 year ago.

That is something you are going to want to call and ask them.

Rpm's going up would happen if the transmission slips. There are many ways the transmission can act up. So you can get a slip bang type feeling with out seeing it on the tach.

Customer: replied 1 year ago.
your recommendation is to re-service the transmission with the proper fluid?
Expert:  Jay replied 1 year ago.

Well if the incorrect fluid was used, the transmission is now contaminated and there is no way to correct it.

So I would like it if you can find out what type of fluid was used. Cause if they used the wrong fluid, they would be responsible.

Customer: replied 1 year ago.
There is no way to correct it"; what does that mean?
Expert:  Jay replied 1 year ago.

The best thing to do it to double check with the shop that serviced the trans. If the incorrect fluid was used, you can certainly try a trans flush with the proper fluid and hope for the best. But normally once the clutch packs inside the trans have come across the wrong fluid, it changes the way the friction takes place in the transmission.

Expert:  Jay replied 1 year ago.

If you still have issues after the flush. Then it would require the transmission to be removed and rebuilt to resolve the issue.

Expert:  Jay replied 1 year ago.

If it was a rear, it would act up more when making turns. When driving straight, if the pinion had lets say a chipped tooth, it would happen more than 10 times in 600 miles. It would happen almost all the time.

That is why I am thinking it's more a Transmission issue than a rear.