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?
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: Transmission won't move

Be sure the wiring harness is connected to the transmission, although in drive the manual valve (in the transmission valve body) should at least get you into 1st gear. Check the fluid level. If fluid is really low, the transmission...

Q: Q: cylinder 2 misfire.

Engine misfires can be caused by many different things, but there are a few suspects that occur more than others. Generally, misfires are caused by either a spark or fuel issue or in cases, a combination of both. Spark related...

Q: Q: Car hard to shift

Hi. It does sound like you might be having hydraulic issues. There are two components to this. The clutch master cylinder and the slave cylinder. The clutch master cylinder is not normally replaced during a clutch job, but the slave...

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 Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
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...