mustangwarrior

im having a small problem right now, sometimes when in reverse the truck seems to bog down a bit and stalls out but starts right back up, it only has done it to me in reverse, it seems like maybe when under a slight load from backing up slowly or uphill, but when in drive everything works great, no hesitations either

now its done this to me a few times in my driveway, once at the car wash the other day, and again at school today, now i do believe it has a slight miss, but i plan on new distributer cap and rotor, already have new plugs and wires, could this have something to do with it?

dirtcrew51m

Try to clean the air bypass and throttle body, when I bought my truck it stalled, cleaned the above, adjusted idle, and its fine now.

1990BlackF150

where is the air bypass? and how do you clean these things? what is the best way to clean these and with what? I have this same problem when i put it in reverse every now and then.

mustangGT90210

Mine threatens to stall when I put it in reverse too, Seems to stumble, then compose itself

leland_b

Since your still active Im gonna go ahead and ask did you ever solve the problem? I've been fighting this for a while now and just changed tranny fluid and filter yesterday

1990 4.9
E4od 2wd

unit505

Fod for thought....a bad torque converter will cause the truck to die when shifting into reverse. We see this allt on our fleet or E-350 and E-450 ambulances. Sure sign.

steved8603

Did anyone ever figure this out? I know it is not the torque converter as that was changed within the last year and the problem occurred before that. In addition I have just had the oil changed, and new spark plugs put in hoping that would solve it. Truck runs perfectly fine other than sometimes stalling in reverse.

Steve Burgess

My truck was doing this too so before spending any money on it . I tried rasing the idle up it was at 532 at idle I put it to 655 stiill did iy but noy bad so _750 and wow it hasent done it since !

RMiranda

howdy!

Did anyone figure this out?

My truck is stalling in reverse.

Hunterz