87 auto trans troubles
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From: bull shoals , ar
87 auto trans troubles
i just bought a 87 f150 4x4 4.9 engine 3 spd auto trans. don't know what model trans on door it says trans K . from park shifting into reverse trans will back up with no hesitation. but from park to drive it takes from 2-3 seconds for it to go into gear where you can feel it. but there is no slip or anything after that this is when it is first started. bad pump ? or don't worry about it.
second if i put my foot into it it won't shift unless i let off the gas then it will shift. does the trans have a vacuum modulator ? could there be a vacuum leak? if i drive normal old man style it shifts fine.
second if i put my foot into it it won't shift unless i let off the gas then it will shift. does the trans have a vacuum modulator ? could there be a vacuum leak? if i drive normal old man style it shifts fine.
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From the 'articles/specs' heading at the top of the page:
https://www.ford-trucks.com/article/...ers_Guide.html
A 3 speed auto should be a C6. It probably has a vacuum modulator which requires a vac. source off the manifold. Usually it results in hard shifts w/o the modulator hooked up.
Failing to move when dropped into gear, and not shifting are probably the beginnings of trouble. Fluid ok, at right level? Some have talked about a govenor or regulator that might affect this, but I'm not a trans man.
Do you know a trusted shop? Caught early, this may be simple and cheap.
https://www.ford-trucks.com/article/...ers_Guide.html
A 3 speed auto should be a C6. It probably has a vacuum modulator which requires a vac. source off the manifold. Usually it results in hard shifts w/o the modulator hooked up.
Failing to move when dropped into gear, and not shifting are probably the beginnings of trouble. Fluid ok, at right level? Some have talked about a govenor or regulator that might affect this, but I'm not a trans man.
Do you know a trusted shop? Caught early, this may be simple and cheap.
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From: bull shoals , ar
thanks my back has been giving me hell havent been able to get under the truck but trans fluid id pretty darn dirty in it.
a friend said he is pretty sure that's caused by a dirty filter in the trans taking up the time first getting fluid up in trans valve body from the pan ?? hope it is only dirty fluid no way can i buy a trans for it.
a friend said he is pretty sure that's caused by a dirty filter in the trans taking up the time first getting fluid up in trans valve body from the pan ?? hope it is only dirty fluid no way can i buy a trans for it.
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