I appologize in advance for any spelling/punctuation/grammatical errors, im posting from my phone)
Like it says, with less than full throttle my trans won't shift right. At full throttle, shifts smooth, but firm, into 2nd at 30ish mph and shifts into 3rd at 48ish. Just as firm. It doesn't feel slushy when shifting at full throttle, but it doesn't slam either. It shifts about like it has a shift kit. Now thats all fine and dandy, but the problem is, when taking off around 1/4 to 1/2 throttle it will pull good up to about 20-25mph, then power levels off and it SHOULD shift then, but it doesn't. it winds out until it is almost on the governer and then around 35mph it SLAMS into 2nd, then does the same thing into 3rd around 45-50mph. If you shift into 2nd manually at 20mph and 3rd at 45 it has no issues. But between 35 and 45 mph it will hunt back and forth from 2nd to 3rd unless there is VERY light throttle being applied. the previous owner replaced the modulator valve trying to solve this problem but it still does it after that. i replaced the vacuum lines from the black thing on the side of the IP all the way down to the modulator valve thinking it may have a vacuum leak, still does it. my last guess is the TPS type thing on the side of the pump, but i dont know what its called, how to adjust it, or if its even adjustable... Im not sure what else it could be, i would appreciate any tips and info you have to give. thanks!
Like it says, with less than full throttle my trans won't shift right. At full throttle, shifts smooth, but firm, into 2nd at 30ish mph and shifts into 3rd at 48ish. Just as firm. It doesn't feel slushy when shifting at full throttle, but it doesn't slam either. It shifts about like it has a shift kit. Now thats all fine and dandy, but the problem is, when taking off around 1/4 to 1/2 throttle it will pull good up to about 20-25mph, then power levels off and it SHOULD shift then, but it doesn't. it winds out until it is almost on the governer and then around 35mph it SLAMS into 2nd, then does the same thing into 3rd around 45-50mph. If you shift into 2nd manually at 20mph and 3rd at 45 it has no issues. But between 35 and 45 mph it will hunt back and forth from 2nd to 3rd unless there is VERY light throttle being applied. the previous owner replaced the modulator valve trying to solve this problem but it still does it after that. i replaced the vacuum lines from the black thing on the side of the IP all the way down to the modulator valve thinking it may have a vacuum leak, still does it. my last guess is the TPS type thing on the side of the pump, but i dont know what its called, how to adjust it, or if its even adjustable... Im not sure what else it could be, i would appreciate any tips and info you have to give. thanks!
