xj87
NAXJA Member #952
- Location
- western mass
87 auto when i hit 2700 rpm it feels like it wants to shift to another gear and bucks even in od and doing 55
-
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feels like shifting
- Thread starter xj87
- Start date
Darky
NAXJA Forum User
- Location
- 29 Palms, CA
I've got a similar problem. It feels like its confused and doesn't know if it wants to downshift or not. When it does that, I just stick in 3rd and then its happy again. It generally only happens for me when going up a slight hill or or giving it just a little more gas...
8Mud
NAXJA Forum User
- Location
- Central Germany
Is it kind of a thunk thunk thunk at a certain RPM, that you can accelerate through?
Mine was bucking at a somewhat lower RPM (around 2200 or so), pretty much in narrow RPM band (the worst of it). Seemed to be much worse in the higher gears, was hardly noticable in 1-3. Was also pretty sluggish at higer RPM´s (around 3000+).
Fixed the vacuum leaks
Cleaned the TB and associated stuff
Adjusted the TV cable
Replaced the TPS
Adjusted the TPS to around 86/14% for the auto tranny.
Re indexed my distributor
Finally replaced the O2 sensor, which cured most (95%) of the bucking.
Get the feeling I had more than one thing going on, but most of it turned out to be the O2 sensor.
My old iron runs pretty darned good now.
Mine was bucking at a somewhat lower RPM (around 2200 or so), pretty much in narrow RPM band (the worst of it). Seemed to be much worse in the higher gears, was hardly noticable in 1-3. Was also pretty sluggish at higer RPM´s (around 3000+).
Fixed the vacuum leaks
Cleaned the TB and associated stuff
Adjusted the TV cable
Replaced the TPS
Adjusted the TPS to around 86/14% for the auto tranny.
Re indexed my distributor
Finally replaced the O2 sensor, which cured most (95%) of the bucking.
Get the feeling I had more than one thing going on, but most of it turned out to be the O2 sensor.
My old iron runs pretty darned good now.
