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.Google+
Car Problem Reports
Buick Park Avenue Transmission Pressure Control Solenoid Failure May Cause Erratic Shifting
Buick Park Avenue Problem
Average Mileage: 124,294 mi (17,000 mi - 203,786 mi)
Visitor, 1999 Buick Park Avenue, 135,000 mi
My car started to have hard up-shifts after driving a few minutes. It would bang from 1st to 2nd gear, 2nd to 3rd and from 3rd to 4th. Sometimes, if I were to shut off the engine for a few minutes, the problem goes away for a bit.
I was told that I had to replace the Electronic Pressure Sensor for about $800 (after labor)
Visitor, 1997 Buick Park Avenue, 17,000 mi
My car jerks occasionally when the transmission shifts. It feels like something breaks when it happens, but then the car runs normal. It does it in town or on the highway. Very annoying.
Visitor, 2004 Buick Park Avenue, 66,600 mi
Start car put in R trany slips then bangs into R. Stop car go shopping, start car put in drive trany bangs , feels like I was rearended. on the down shift trany bangs. No trany noise other than the bang.Highway driving 60 70 mph no problems. If trans is shifted od, to 3,2,1 then stop and pull out no banging.
Visitor, 1998 Buick Park Avenue
when its a cold ride it shift good but after it warms up it start jerking while shifting do the pcs canses that
Visitor, 2001 Buick Park Avenue, 108,611 mi
Hard shifting from 1st to 2nd gear, then 3rd to 4th gear. The shifting is hard,and noisy. The car literally jerks when its shifting from 1st to 4th gear. Down shifting from 4th to 1st when slowing down or stopping is as expected, smooth and natural.
Visitor, 2000 Buick Park Avenue, 157,800 mi
periodic rough, hard shifting; sometimes when cold, other times when warmed-up. Changed & flushed trans oil & filter, still periodic rough, hard shifting.
This buick was my mothers car. The shutter in the transmission has been a problem for years
Hard upshifting after driving over a minimum of 20 min occasionally. No check engine light. Mechanic states pressure control solenoid and valve assembly replacement/repair.
Visitor, 2002 Buick Park Avenue, 203,786 mi
TRANSMISSION SLAM SHIFTS UP AND DOWN WHEN COOLENT TEMPERATURE GOES ABOVE 200 DEGREES. SHIFTING NORMAN AT COOLER TEMPERATURES.
Visitor, 1997 Buick Park Avenue, 54,000 mi
Bought vehicle used. Almost right away developed hard upshifts usually 3rd to 4th gear. Changed tranny oil, filter, used additive. Seemed to help, but problem worsened. Most problem in warmer weather (not as often in winter), now get hard up shifts all gears when warmed up, tho occasionally will shift normally. At highway speeds, after getting hard upshifts, also get a whine from transmission - apparently running in high pressure mode.
Vehicle now has 240,000 + miles on it.