Skip the auto shop - Our mechanics make house calls

Q: No acceleration in drive

asked by on

my name is jarrod. i have a 2001 dodge durango my problem is my tansmission has no pick up in drive and when im on the highway the rpm runs about 2500 rpm at 55 mph. the tranny doesnt slip i changed the throttle posistion sensor input output sensors also the plugs. my crank sensor went bad but changed tht and it seemed to fix tht problem but still no acceleration. any thoughts could it be the tranny solenoid or govenor??

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

Hello - first task is to check to see if there are any problem codes set, whether the Check Engine light is on or not. It is possible that the transmission speed sensor is malfunctioning as you mention, and not allowing a downshift. This would make the engine struggle, trying to accelerate in a higher gear than required.

Try manually downshifting to see if that forces a downshift (it should). Check transmission fluid of course - low fluid level causes all sorts of bad behavior. Disconnecting the battery for 10 minutes or so will also force the transmission to go through a "re-learn" process, which may clear some transient problems.

If none of these improve transmission performance, a diagnostic check from a reputable transmission shop is the next step for you. If the transmission appears to be shifting properly, including downshifting, I would recommend having you car’s loss of power condition inspected by a mobile, professional mechanic, such as one from YourMechanic, who will come to your location, diagnose this problem, give you an accurate assessment of damage and cost estimate for repairs.

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: Remote no longer works on trunk.

The actuator for the trunk lid release is controlled by the Passive Entry Module. The interior switch is monitored by the instrument cluster which sends a signal to the passive entry module to open the trunk. The key fob sends...

Q: Accelerating after 4th/5th gear, RPMs up, but no faster

Yes, your clutch is slipping and needs to be replaced. As for the high quality fuel, top tier gasoline does have additives designed to keep your engine and fuel system clean. Will you ever notice a difference while driving?...

Q: my wheel wont come off, lug nut stub still there

If the wheel is stuck on the centerbore where it mounts to the axle hub, or the lug nuts are rusted to the stud(s), a certified mechanic will resolve this if you request wheel installation/removal. If you have further questions...

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 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...