Skip the auto shop - Our mechanics make house calls

Q: transmission

asked by on

So my jeep is having transmission problems of some sort. And before i replace the transmission i want to make sure it isnt a easier fix. It started taking a while to shift gears like it would go to high rpms before it would change then one day i was going down the road and it just started reving up like it was in netural and wouldnt go into gear. If i cut the jeep off and wait a few mins i can crank it up put it in gear and it will drive only for a minute then it will go out of gear again. I changed the fluid and filter the other day and thought that fixed it because i was able to drive it all the way to the store and back but when i got home it was back to not moving. I was told it could possibly be the throttle position sensor isnt adjusted right. I did replace my tps a few days before it went out. Do you think its possible it could be the throttle position sensor? What are your thoughts and suggestions? Thanks!!

My car has 250000 miles.
My car has an automatic transmission.

A: With your car having 250,000 miles on it, s...

With your car having 250,000 miles on it, some mechanical issues may be expected at this point. I am assuming here that the transmission has this many miles as well. This is about the time that all the friction material in the transmission has worn off of the clutches. What happens as you drive is the friction material gets sucked into the filter screens inside the transmission. When this occurs, the transmission will clog and won't have a gear. When you turn off the motor, it allows this friction material to fall off the screens and it can then move again. It is worth it to do a machine flush - not a standard drop the pan and filter flush replacement.

A machine flush is more like a transfusion than a drain and fill. A drain and fill does not get all the fluid out of the transmission. A machine flush does. If you haven't already, definitely replace the filter in the pan. In this case, you may need to replace it and then drop the pan after the machine flush and clean the filter again.

This is a last ditch effort to save your transmission, so be warned that you could do all this and it may not save the transmission. It may be time for a new one regardless. If you want to have this inspected before condemning the transmission, a technician from YourMechanic can come to your car's location to diagnose the shifting issue and let you know what needs repair.

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・Save up to 30%

Get a quote

What others are asking

Q: Turn signal issue

A ground issue, or short, is a good place to start. There are a few ways to go about tracing down a turn signal issue. Either way you will want to use a voltmeter to trace the flow of electricity....

Q: Crank but not start

Thanks for writing in about your 1990 Mercedes Benz E300. It sounds like the idle valve may be stuck closed and this could be why the engine only starts when the gas pedal is pressed. Due to the pressures generated...

Q: Vehicle not going into park

There are 3 possibilities. The problem can be in a broken part or malfunctioning shift interlock within the steering column, a faulty or misadjusted shift cable, or a physical problem within the transmission. A qualified mechanic, such as one from...

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 to Renew Your Car Registration in Oklahoma(DELETED)
Having your car registered with the Oklahoma Tax Commission is an important part of driving legally in this state. You will need to do this within 30 days of moving to Oklahoma...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...