Q: I put a new transmission the truck will not move until high RPM

asked by on

i put a new trnasmission in it but it wont move untill high rmp

My car has 200000 miles.
My car has an automatic transmission.

It sounds like a defective torque converter or a bad transmission to me. Double check your fluid level after cycling the shift lever through the gears. Check your electrical connections and the adjustment of the range sensor. Check for codes. If you have an auxiliary fin-style trans cooler, you should have replaced it. Debris from the previous transmission can clog them, and it can not be flushed out. You should have flushed the cooler in the radiator, too. If you disconnect the solenoid connector, you will have 3rd gear at full line pressure, this will help you determine if it is the transmission or the torque converter. If you need more help, consider YourMechanic, as a certified technician can come to your home or office to inspect the transmission.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. I put a new transmission the truck will not move until high RPM

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: Torque converter vibrates - 2005 Chevrolet Avalanche 2500

Torque convertor "shuddering" is a cycle where the torque convertor tries to lock up, can't, and re-cycles repeatedly. General Motors has a service bulletin - TSB Reference #3438A, that addresses this issue. Discuss this issue with your dealer.

Q: Car has trouble shifting between gears

As you know, automatic transmissions use pressurized hydraulic fluid to change gears. Every time a gear change is required, the car's computer activates a transmission solenoid, which directs transmission fluid into the valve body to engage the correct gear. When...

Q: My truck is running sluggish

Hi there, thanks for writing in. If the engine had non-fouler plugs in it then you need to do a compression test. If the engine is worn then it will need these plugs and may not be able to produce...

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...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
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...