1989 pontiac bonneville transmission will not go into 3rd or OD
I am unable to drive the car in 3rd gear or OD, when it goes to shift into 3rd it slips, must drive in 2nd gear for the trans to not slip. Please advise, I am confused about this one the fuel pump went out, I replaced it, the car still wouldnt start. I replaced wires, plugs, distributer type box, now is runs too rich and will not go into 3rd or OD.
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Mar 5, 2011 - Before guessing at transmission problems, check the fluid level (car warmed up, ... that do not show up as PCM codes (like shift A&B solenoid failures, for example). ... 1-2 shift is delayed and harsh, may not shift into OD: Check TPS for ...goes into 3rd gear: Reaction planetary is worn out due to high miles or ...
Retrieve transmission faulty code first and check the transmission oil level.
Every time you turn off the ignition key the PCM act like that
The PCM will see the problems every time it happens and only in the same ignition key cycle.
Honestly, it sounds like your transmission is starting to go bad, With the cars I have had that hesitate to switch gears, the transmission went out soon afterwards. Have you made sure to check the fluid levels?
Also, check the level and color of the transmission fluid. It should be red/pink in color without much discoloration in it. And the level should be at the designated line on the dipstick.
Trans shifts into gear harshly, car feels sluggish off the line,
No 1st, 4th or TCC lockup available, Manual 2nd, 3rd and Reverse are
only available gears, CEL is on: Transmission is either in limp-home
mode or has lost electrical power. If there are lots of error codes in
the PCM, check the under-hood fuse that powers the transmission, and if
it pops again, look for a short in that circuit like an O2 sensor
harness touching exhaust. Otherwise, check PCM codes for a particular
fault in the transmission causing the PCM to put it in limp-home mode.
No 1st or 4th available; trans shifts 2nd to 3rd by itself in D or OD and locks the converter : ShiftA solenoid failed. Easy fix in the pan. Or a wiring problem from PCM to trans.. or PCM.
Car goes into gear but feels very sluggish like the brakes are dragging,
but it will roll easily (starts out in 4th gear), you manually shift to
2 to get it moving, once it's moving you put it back in OD and the car
shifts 3rd to 4th on its own and locks the converter at the appropriate
time: ShiftB solenoid failed: Easy fix in the pan. Or a wiring problem
from PCM to trans.. or PCM.
Good luck and keep me posted, there are other things but these things mentioned seam like what you described.
Had the transmission serviced in a while? would be a good idea to have someone look at it for you. I wouldn't continue to drive it until you do a diagnostic and have it properly serviced. Transmissions on that truck could cost you upwards of $7,500. and I think you would prefer spending the $ 350. it would cost for a servicing.
Your transmission is "downshifting" which is a normal function...However if it's happening early, the throttle cable may be out of adjustment. This does not happen in 3rd gear because that's how the system is designed. Downshifting is a 4 (od) to 3rd gear shift...if already in 3rd, this won't happen. As long as trans shifts normally on flat ground with no slipping or delayed shifts, just service it regularly and it should be fine.