A few weeks ago, I had the following work done on my 2002 Dodge Grand Caravan: new tires, a front end alignment, brake inspection, and a transmission fliud flush and fill.
When I left the service center, I noticed a problem that had not been there before. After bringing up the speed to at least 35-40 mph and then slowing down, there was a very noticable pull/grab/minor jolt when slowing to about 25-30mph. At first, I thought it was a brake problem and assumed something went wrong during the brake inspection, but when I had the front and rear brakes done at a different shop two days later, the problem persisted.
I strongly suspect a transmission problem (4 -speed automatic). When the problem occurs right around 1000 rpm, the tach jumps about 2-3 hundred rpm. It feels more like a slip than a grab. Also, the problem only occurs in D.It will not happen when driving in 3. Up and down shifting is completely normal at all point with the exception of what I described. I assume the problem is occuring when downshifting from 4 to 3.
I took it back to the original mechanic. He confirmed that the transmission fluid was filled with fresh fluid. He took it for a test drive, confirmed the problem, but couldn't figure out a cause.
What could have happened to cause this? What possible mistakes could have been made that would result in this problem?
Thanks in advance for your opinions.
Rob