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.

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 1,000 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!
  1. Home
  2. Questions
  3. transmission

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: Overheated, power steering went out and battery went low

Hi There, What you have described sounds like your serpentine belt may have come off. As you may know all of the accessories (ie alternator which charges the battery, power steering and the water pump) are driven by the serpentine...

Q: Ran great, died on highway, added 2 qrts, ran 5-6 miles died again

You need to check the PCV system and air filter to see if it is clogged. Remove the oil cap and start the motor after you fill the oil and see if you see smoke come out of the oil...

Q: Transmission indicator on the dash board does not point to the current position, plus the Tiptronic gear does not always work.

Hello. The issues you are experiencing can be caused by a variety of issues. It may be possible that there is some sort of sensor or computer issue. In certain cases a faulty transmission switch or shift solenoid will cause...

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...
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...
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...