Q: transmission shifting rough

asked by on

When I changed transmission fluid I found the pickup screens on bottom of pan could they be blocking something to make shift hard

Hi there, thanks for writing in about your 2004 Cadillac DeVille. Hard shifting can be caused by several items. I don’t feel like the pickup screens are contributing to your concern. The transmission uses hydraulic pressure to control the shifts. It also used electronic controls to determine when and how quickly to shift gears. Check the vehicle for vacuum leaks, as this will make the computer think that you are accelerating harder than you are, and will command the transmission to be more aggressive. Have an expert fully test your unit for correct pressure or internal issues that could be contributing to your concern. If you would like to have this checked, a certified professional, such as one from YourMechanic, can come to your car’s location to diagnose your shifting issue and recommend the appropriate fix.

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
  1. Home
  2. Questions
  3. transmission shifting rough

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: Volkswagen Passat transmission line leaking.

Hi there. The line on the transmission is leaking for either the line is cracked or the fitting on the end of the line has split and is leaking since the fluid is under a low pressure. I recommend replacing...

Q: Stalls on acceleration

You're probably not actually loosing compression. But you might be loosing fuel pressure. If the pump is not delivering enough fuel you may be able to run and idle, but the power will drop off when you try to accelerate....

Q: After shifting into 3rd gear, truck won't accelerate

Hello there, thank you for asking about your 2006 GMC Sierra 1500HD. It sounds like the transmission is slipping. Replacing or rebuilding the transmission is likely the cure. To be certain, I suggest having a professional inspect your vehicle firsthand....

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...
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...