My 7.3 quit when I put it in reverse-why?
#1
My 7.3 quit when I put it in reverse-why?
Drove it 2 hours on Saturday, got to my destination, put it in reverse to back up, stepped on the gas and it died-instantly. Put it in park, turned the key, and it started right up. Put it in reverse, idling fine, stepped on the gas and same thing, died instantly, like someone shut off the key. Put it in park again, restarted it, and then it was fine, and has been perfect ever since-anyone seen that before?
#2
my 94f250 did that 5.8l ...the torque convertor was not unlocking ..before long it would stall at a red light or stop sign ...had the tranny overhauled and now it is alot better ,,,cost 1525.00 but hope it never happens again...tried everything before i went to ammco and they scanned it and told me the problem was ...hope this helps ???? good luck
#3
#7
There are a few reasons that the engine would stall going into reverse.
In order that I recommend checking:
Low trans fluid.
Dislodged internal trans filter.
Short in the wiring to the torque converter lockup solenoid.
Sticking torque converter control valve in the valve body.
Bad torque converter.
In order that I recommend checking:
Low trans fluid.
Dislodged internal trans filter.
Short in the wiring to the torque converter lockup solenoid.
Sticking torque converter control valve in the valve body.
Bad torque converter.
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#9
Sounds kind of funny that it would idle while in reverse.
It only dies when you touch the throttle?
Were you able to increase RPMs while in neutral?
Don't rule out the throttle pedal sensor. They still used those on your year truck? Crawl under the dash and see how the pedal bar is attached. Just above the pivot point, where they used to connect the throttle cable, you'll see the sensor (no cable anymore). A grounding issue here might cause a similar problem.
It only dies when you touch the throttle?
Were you able to increase RPMs while in neutral?
Don't rule out the throttle pedal sensor. They still used those on your year truck? Crawl under the dash and see how the pedal bar is attached. Just above the pivot point, where they used to connect the throttle cable, you'll see the sensor (no cable anymore). A grounding issue here might cause a similar problem.
#10
Originally Posted by Dallenx
Sounds kind of funny that it would idle while in reverse.
It only dies when you touch the throttle?
Were you able to increase RPMs while in neutral?
Don't rule out the throttle pedal sensor. They still used those on your year truck? Crawl under the dash and see how the pedal bar is attached. Just above the pivot point, where they used to connect the throttle cable, you'll see the sensor (no cable anymore). A grounding issue here might cause a similar problem.
It only dies when you touch the throttle?
Were you able to increase RPMs while in neutral?
Don't rule out the throttle pedal sensor. They still used those on your year truck? Crawl under the dash and see how the pedal bar is attached. Just above the pivot point, where they used to connect the throttle cable, you'll see the sensor (no cable anymore). A grounding issue here might cause a similar problem.
#11
Originally Posted by Highmark18
Yeah, kind of strange. It does not die when I put in it reverse, just when I touched the throttle. And only twice, it has been perfect ever since-That is why I don't think the torque converter is at fault (but I have been wrong before) I will check that pedal linkage out, is there a ground wire there I should look for?
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