Nissan Repair Questions? Ask a Mechanic for Answers ASAP
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When you say it hiccups, do you mean the engine cuts out? or the transmission engagement hiccups?
I have seen rear diff's go. but it would be more consistent. How often would you say it does this?
How many miles do you have on the truck?
Have you checked the trans fluid condition by any chance?
I am wondering if you are developing a transmission issue.
Who did the service?
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?
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.
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.
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.
If you still have issues after the flush. Then it would require the transmission to be removed and rebuilt to resolve the issue.
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.