Skip the auto shop - Our mechanics make house calls

Q: Is this a transmission issue? Do I need to replace the car? Is it an easy fix?

asked by on

While I was driving on the highway, I accelerated to 55 mph but suddenly the car decelerated to 50 mph. I tried to increase the speed to get up to the speed limit, but the car wouldn't increase the speed and the rpm would continue to climb (maybe faster than normal. I quickly pulled over. The RPMs were very inconsistent and I couldn't really drive past 40 w/o this problem.

My car has 165000 miles.
My car has an automatic transmission.

A: Hi there: The symptoms you’re describing a...

Hi there:

The symptoms you’re describing are typically an indication of a slipping transmission; however, it could be a simple sensor that is faulty or damaged that is causing this problem to occur. Before you decide to sell your car, contact one of our mobile mechanics to complete a car is hard to accelerate inspection; which will allow them to determine why your Nissan is having this issue and recommend the best and most affordable course of action you should take.

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: Antifreeze keep running out and overheating now

Hello there, you have a few problems with your 2007 Nissan Altima. If coolant ran out after it was put in there is a leak somewhere in the system. The most common places for a leak are the radiator, coolant...

Q: Compressor shaft seal leak

Hi and thanks for contacting YourMechanic. Put a manifold set (A/C gauge set) on the A/C ports and check the system when it is running on high A/C. Look to see what the pressures are on the high side and...

Q: Could this be the TCM causing the problem?

Yes, no start in the scenario you are describing is possible especially if Code U1000 has set, along with other codes such as P0717, but there are multiple code scenarios or combinations. One quick strategy is to pull and visually...

Related articles

P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...