shifting hard
Post Fiend
Joined: Dec 2010
Posts: 10,121
Likes: 3
From: Orrville, Ohio
Sounds like you better get to a transmission shop and have those codes pulled. If the O/D light is flashing the transmission has a stored trouble code. The cheap parts store code readers won't do it so you'll have to have a good shop read it for you. Post up what they find and we can speak a lot more intelligently. Until then we're just guessing.
Laughing Gas
Joined: Dec 2005
Posts: 1,088
Likes: 189
From: Reno, NV
Check the wiring harness coming off the solenoid pack. My truck had the exact same symptoms recently, and it turned out to be that harness. You can get replacements for around $30 but you'll need to splice as they only include the plug on the solenoid side.
Post Fiend
Joined: Dec 2010
Posts: 10,121
Likes: 3
From: Orrville, Ohio
Nope. Sorry man.
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Frmr Ford Trans Engr
Joined: Aug 1999
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From: SE Florida
There are two shift solenoids. The code means there is something wrong, it doesn't necessarily mean the solenoid is bad, it could be a wiring problem.
Post Fiend
Joined: Dec 2009
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From: Livoina,La
Fleet Mechanic
Joined: May 2011
Posts: 1,414
Likes: 10
From: Thornhill , Ontario
I cannot emphasize enough to check and clean ALL wiring connections from the transmission to the front of the engine...computer ( PCM) too .... Before removing the pan and solenoid pack....It has to be replaced as a unit..I went through all this bull**** about 2 months ago...My solenoid pack was toast ( EPC solenoid) but I also had alot of corrosion at the trans connector and at the front of the engine.....Thes guys have a decent price on the Solenoid Pack E4OD, 4R100 Transmission from PATC, E4OD, 4R100