Question about 1990 Ford F150
Will take off in low gear and shift to next gear but will not automaticaly shift to drive or overdrive.i thought i might have pulled a vacume line off in the woods while hunting, when i looked underneath i could not find a modulator valve. I did find a plug with wires plugged into tranny.I haven't really driven it much since my back surgery in may of 2008,and only driven it a mile down the road to my land not over 25 mph and back to the house. transmission fluid is fine, i am thinking it might be an electrical problem or dirty filter, it was rebuilt 7000 miles ago. if you have any advice i would appreciate it.
Check that you don't have a cable from throttle to transmission that is partially seized and just needs to be lubed up. Probably be able to follow it down and see where attached at tranny and make sure moving freely at both ends. I usually found linkage at tranny tight, and lubed until moving freely. It's like it's stuck in passing gear.
Posted on Jan 02, 2009
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Posted on Jan 02, 2017
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