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Shift autotranny wont engage drive or reverse think its electrical

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The selector linkage has not broken on the top or side of the trans

Posted on Sep 02, 2010

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1 Answer

Select 2wd,4wd dash light is still illuminated,does this mean it is still in 4wd,if so what am I to look for ?


On four wheel drives turning is a real indication when four wheel is still on...4wheel is a bit more sluggish on turns. But, im a bit old school and am thinking trucks since nothing is listed. Most electric transfer cases have an actuator than engages an disengages electronically, but sometimes they get sticky and require a love tap or driving in reverse to disengage the actuator... you could also suspend the vehicle in the air and engage an disengage a see what is happening too.

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1995 celica 2.2L doesn't engage gear 2,4,r


are you saying this car is a A/T car, AUTO and not a stick?

say so, as both have 2,4 and reverse gears.

i think its a 5speed manual.

so the tip of the shifter is bad, remove it see plastic parts bad.

you could shift car , by moving the transmission levers and id bet it does work so that leaves. bad shift lever parts.

i bet the lever is real loose , so loose the H pattern is garbage
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Will not shift in my 2000 chevy lumina


a jeep lumina?
wrong forum but that is ok, seems to be common here.
what wont shift.
A/T or M/T auto or stick? tranny????
what does will not , mean?
I cant move the shift lever
i cant shift, to 2nd
IT (autobox ) will not shift ever, or slips or flares. or?
if its and A/T autotranny, tell me what it does right and wrong
here is an example.
i start engine.
i shift to drive car dont move, in any gear
i see RPM race high with right foot over 3000 RPM.
tranny failure. (slips)
or RPM stays near 1500, and engine sounds loaded,
and i find the parking brake stuck on, or the brakes are full of ice
and stuck fast.

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My 2005 hyundai tiburon with 86000 miles wont shift into drive


it sounds like transmission trouble take it to a shop cause i dont think you wil have the tools to fix the trans at home

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bad thing trany going that the sign that it needs to be replace

Apr 10, 2010 | 1994 Oldsmobile Cutlass Ciera

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Car goes into reverce but does not engage completely works fine in forward, when in reverce it seems lik it wants to ingage but does not. it makes a chattering sound and feeling. what electric part puts...


Hello. As you know, the transmission is one of the more sophisticated components in any auto. It takes the most transmission pressure to engage reverse, third, and fourth gear in an auto tranny. In an auto tranny, the shifter is connected to a linkage that manually shifts between the different gears in the transmission. When you shift into reverse, all transmission pressure is concentrated to engage reverse. When you shift to drive the transmission will operate normally, building pressure until it can shift into the next gear. With third, second, or first gear selected it will lock out all higher gears (Unless the TCU detects overrevving of the engine, in which case it will override gear selection and upshift to avoid engine damage). All the TCU does in a modern auto tranny is control shift points. Years and years ago, shifting was controlled by a spring attached to the gas pedal. When the gas pedal was depressed, the spring would expand. As tranny pressure grew, the spring would become compressed until it was fully compressed, engaging the next gear. The harder you stepped on the gas, the longer you went until the tranny shifted. In modern transmissions the TCU dictates shift points, and not much else. The TCU will also control when the torque converter will lock, but that's where it's duties end. The problem with engaging reverse is either a linkage issue, or a problem with the pump not building enough pressure to fully engage reverse.

Try putting the shifter in reverse, holding the brakes firmly, and giving the car gas. If the car reaches a higher RPM and suddenly slams into reverse it is the pump. The pump will only build enough pressure to engage reverse with higher RPM's. If the pump is severly damaged it won't engage at all, but if this is the case it probably won't engage third or fourth gear either at that point. If the problem is with the linkage, reverse just won't engage whatsoever, despite RPM's. I'd say start with the shift linkage. If it's bent or misadjusted it could cause reverse to not be fully engaged. The TCU doesn't control reverse at all, since there are no shift points and no need for the torque converter to lock.

Nov 20, 2009 | 2007 Saturn Aura XR Sedan

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The 4x4 wheel buttin wont light up, and the 4x4 wont engage


There is a small electric motor on the transfer case that shifts in and out of 4WD. Before you take it off, try resetting the switch. There is a relay in the driver side rear in front of the rear washer fluid reservoir. Hold the white button down for about 10 sec. I am pretty sure it flashes. If that does not work, pull off the electric motor and test it with 12v power. Most of the time they jump past where they are supposed to be. If you reverse the polarity, the motor will turn in reverse.

Jun 13, 2009 | 1991 Ford Explorer

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