Help Transmission Troubles
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Junior User
Joined: Apr 2004
Posts: 86
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Help Transmission Troubles
Help, I have a problem with my 91 Explorer that I have not seen here yet. When it is in drive or O/D the transmission wil start and shift to second fine, but will not shift to any higher gear. When the trrottle is released the truck will free-wheel as if it were in neutral. Does anyone know what is going on here? How do I fix it? How much will it cost? Thanks SHD
Laughing Gas
Joined: Mar 2003
Posts: 877
Likes: 1
From: Colorado, U.S.A!
Guess you already checked the trans fluid level. How long since it was changed? Not sure what transmission would be in that truck, but if it has a vacuum modulator, you should make sure the diaphram's ok and the vacuum line to it doesn't leak. If it has the AOD transmission, there's a cable from the trans to the throttle valve on the engine that could be broken or out of adjustment.
Postmaster
Joined: Dec 2001
Posts: 3,742
Likes: 2
From: UT
FYI. '91-'94 Explorers with automatic all came with the A4LD transmission. Still, check the vacuum modulator as suggested. It is responsible for controlling the 1-2 and 2-3 shifts. How does it behave in L2 and L1? Does it behave differently with the selector in D instead of OD?
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Junior User
Joined: Apr 2004
Posts: 86
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Thanks for the info, The trans acts the same whether it is in D or OD. When started in L1 or L2 it will start out in the gear that is indicated but when the shift is moved up to D it stays in 2nd. Again when the accelerator is released the truck well free wheel and idles down to normal idle speed even when going 30 or so MPH.
