Skip the auto shop - Our mechanics make house calls

Q: When reducing speed and then trying to accelerate again car seems to struggle (rpm start going up) but the mph don't

asked by on

My 07 maxima happens to struggle when I reduce speed and then try to accelerate back to a higher speed. Had it diagnosed and was told to replace TCM, did so and the car is still having the same issue. Seems to only do it when reducing to around 20-40 and then when trying to accelerate again. On Highway and going at higher speed the problem doesn't persist so I don't believe it's a transmission problem. it'll change gears properly, perhaps an electrical problem? Thank you

My car has 99688 miles.
My car has an automatic transmission.

A: Hello. I would usually start by scanning th...

Hello. I would usually start by scanning the computer for codes. This would tell me if the computer is seeing anything out of the ordinary. If there are no codes, then I monitor the output of the sensors as the air flow meter can cause this. If everything is reading right, then it is likely a transmission issue. The CVT will act like this some of the time and work improperly other times. This is very common on this car. Changing the fluid will help some of the time, but not too often. If you need to have this scoped out, consider YourMechanic, as a certified mechanic can come to your home or office to diagnose the loss of power and have this addressed appropriately.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Car turned itself off, now Check Engine Light is on

I'm guessing the Battery and Oil Lights came on because the ignition was in the run position but the engine died. This is normal. What caused the vehicle to stall is another question. A vehicle that stalls and then...

Q: 2001 nissan maxima refuse to pick up speed while pressing gass

The first thing to do is see if any diagnostic trouble codes have set. If so, those will typically lead to a resolution, once they are followed up on. If no codes, then typically the cause of no acceleration will...

Q: I

Hello there, a few things can cause the AC to intermittently work. The most common would be the AC condenser, AC fan, low Freon, or a failing temperature control module. Depending on how humid your area is, mold growing in...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...