Close
Car Questions
RepairPal is your advocate for car care advice and guidance

Transmission shifting rough

(2004 Cadillac DeVille)
in Abingdon, VA on May 14, 2010
My 2004 deville has been a jewel. I just noticed the transmission, instead of a smooth transition from drive 1 to two, I get a rough"slam"ingagement and the same each progressive upshift. However when I hit passing gear, there is a smooth downshift.
Displaying 1 answers & 0 comments
Popular Answer
on May 20, 2010
The powertrain control module may have detected a fault and as a result has commanded full line pressure causing the hard shifting. The first step would be to check for stored fault code(s) in the powertrain control module. Any stored codes should be diagnosed and repaired and then the transmission operation rechecked. If you need someone to access and diagnose any stored fault codes, please use the following link to find a shop near you - http://repairpal.com/cadillac-repair-in-abingdon-virginia.
RepairPal estimates are guaranteed at over 2,000 quality certified locations nationwide. Learn more

Similar Questions

View answers to similar questions from RepairPal's community of auto experts and enthusiasts.
After the car cranks, it is rough putting the car into driver or reverse. For the first 3 miles the car transmission...
Runs rough when started. Feels like the car changes gears late.
Didn't find what you were looking for?