Skip the auto shop - Our mechanics make house calls

Q: tranny shifting irratic

asked by on

i replaced a n b control solinoids no change at a little over idle it shifts at 2500 rpm n hard

My car has 160000 miles.
My car has an automatic transmission.

A: Hello, there can be three types of failures...

Hello, there can be three types of failures with automatic transmissions, mechanical, electrical and hydraulic. The transmission uses a computer to control shift points and shift feel. First thing, fluid condition, meaning dark in color and if it has a burnt smell to it. A scan tool is needed to look at codes, transmission data and special function tests. I suggest getting a professional technician to evaluate this. If you’d like, a certified technician from YourMechanic can come to your location and advise you of some options.

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

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: How do I use the cargo tie-down?

The cargo tie-down is located in the trunk, on the driver side. The tie-down is a small hook that protrudes from the side of the trunk. Hang light items on this hook to keep them from rolling or moving around...

Q: Car cannot be put in drive, high revving

Hello. Thanks for writing in about your 1995 Buick Riviera. If restarting the engine allows you to get the car running properly again, then chances are that the valve body in the transmission is failing. Over time the body can...

Q: Transmission bounces back and forth between 3-4 or 4-overdrive

Hello, this transmission is controlled by a computer. The TPS (throttle position sensor), VSS (vehicle speed sensor) and TSS (turbine speed sensor) would create more issues than you are having. There would have to be an inspection of transmission, I...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
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...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.