Monte Carlo

Erratic Shifting of the Automatic Transmission on Chevrolet Monte Carlo

Problem Description and Possible Solution

The transmission pressure control solenoid may fail causing erratic shifting. Our technicians tell us that partial dis-assembly of the transmission is necessary to replace a failed pressure control solenoid.

Problem Data
RepairPal Verified
Average mileage: 163,514 (39,000–950,000)
10 model years affected: 1997, 1998, 2000, 2001, more2002, 2003, 2004, 2005, 2006, 2007
77 people reported this problem
Viewing 1 - 20 of 33 comments
had the transmission fluid and filter changed in my 2000 monte carlo now it hesitates and shifts hard from drive to 2nd gear only.HELP PLEASE.
Starting at a stop light, it jumps from first into second. Like a slip. When changing into third or fourth(whatever the last gear is) it makes a little skip. sometimes the starting from stop, it CLUNKS loudly. transmission fluid changed, but still does it.
Lately, the car is having large difficulties shifting, or won't shift at all. We replaced the transmission filter, and got more transmission fluid, but it still has a hard time with shifts when it's exceptionally cold outside.
Purchased car from fellow employee. Had all fluids and filters replaced, etc. Tranny fluid was clear when replaced. But continued to have problems where I'd start the car, shift into Drive and car would lurch forward HARD. Same happened at stop lights at times. Had engine checked for codes by mechanic. Car eventually would not shift at all. Had trannie taken apart and all solenoids replaced ( some were burnt out by this point). Within 2 days problems started again. Had used transmission put in-- 5 months of city driving later this transmission went. The car is now sitting at a repair station in PA. Is there anything that might be causing this issue other than the transmission?? Thank you!!
Trans will engage into gear at and shift sometimes fine but recently it disengages when in high gear. I can manually shift it sometimes it works sometimes it doesn't. I'm a mechanic myself and figured that it's still shifting so it's not all the way out . I changed fluid and filter and drove for 2 weeks then the problem came again
SOMETIMES, sitting at stop, transmission CLUNKS, and goes into second. I told repair shop it sounds like the bands are slipping; he said , tthis transmission does not have "bands" like the old cars.
The pressure solenoid went out on my monte at 88500 miles. shifting became erratic and eventually it failed to shift at all. complete rebuild had to be accomplished due to over pressures screwing everything else up.
I bought this car used with 100000 on it. The day I drove it off the lot it started shifting harshly accelerating and decelerating. I ended up getting the Pressure Control Solenoid replaced and that solved the problem. Now at 125,000 mi I am experiencing a different problem with erract shifting and I am hoping its not going to cost me another $700.
Studders when shifts bangs and lost power up hill. Just started had fluid and screen changed 2 months ago no problems 4 th time filter changed since new.
X Wife had transmission flushed, sand that pushes all the clutch debris through out the transmission and clogs the shifting plate inside the transmission. Took to shop they fixed it for1300.00, where it lasted only a year and now wont go any where without dumping transmission oil all over the ground. So my solution now is forget about a shop and I will due it myself so I know it gets done right!