Won't shift into 4th gear?
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Senior User
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From: Millersville USA
Won't shift into 4th gear?
While driving my 88 F350 automatic with EFI 460, I noticed it won't shift into 4th gear, what could that be? Is there an adjustment I can make? How do I fix this one guys?
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Won't shift into 4th gear?
A 4 speed auto behind a 460 in 1988? What trans would that be? Too early for the E4OD, right? And a stock AOD won't take a 460's torque. Wouldn't it instead have the C6 3 speed? Maybe I missed something, maybe its been swapped out. But a E4OD needs a computer to shift it.
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Won't shift into 4th gear?
[updated:LAST EDITED ON 13-Nov-01 AT 11:55 PM (EST)]It may sound silly,but check it's fluid level,and it's condition.I'd take it to a tranny shop if the fluid level is fine,and it is it's normal color.Just have them check it over.If your truck was used for heavy towing&snowplowing(I think you said it had a snowplow on it),it could need work.If it has a lot of miles on it,it could be time for a rebuild.Have a shop take it on a quick testdrive.They'll be able to tell you the problem.It could be a simple fix,or it could be a problem.(The AOD was basically put behind 302s.Never behind a 460.The E4OD came out in 1990.)Hope everything works out for you.Good luck.
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Won't shift into 4th gear?
The E4OD is from "late" 1989. The first full model year of availability was 1990. I pulled an E4OD out of a 1989 model year donor with an August 1989 build date. Another month and the truck would have been a 1990.
If the original poster confused the specs of his truck, and it does indeed have the E4OD, then a possible explanation is the 4th gear lockout switch. Maybe it got bumped and is telling the computer not to use 4th.
Ludis
If the original poster confused the specs of his truck, and it does indeed have the E4OD, then a possible explanation is the 4th gear lockout switch. Maybe it got bumped and is telling the computer not to use 4th.
Ludis
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From: Millersville USA
Won't shift into 4th gear?
You are correct on the C6 3 Speed. Sorry, I'm not used to these big trucks yet. But I took it to a shop, and they told me nothing is wrong with it, it's in great shape. It is in fact a C6 3 speed. Thank you for the input folks, I greatly appreciate it!
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