Engine stalls when i put it in reverse. Any ideas? - Ford Bronco Forum
 
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post #1 of 10 (permalink) Old 07-13-2005, 12:19 AM Thread Starter
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Location: Kalifornia
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Bronco Info: 1995
Question Engine stalls when i put it in reverse. Any ideas?

Hello my fellow Bronconians,

Been reading for a while but never had any questions till today. My 95 Bronco (351w/E4OD) has been sitting for about a month. I went to turn it on and the battery was dead. I gave it a jump and it fired up. I let it sit for a few minutes and drove it around the block twice.. The truck was running maybe 10 minutes or so. I put it in reverse to back it into my driveway and the RPM's went down and the engine stuttered and turned off. Im not too engine savy so im not sure how to describe it. Ive run out of gas before in an older car 79 Ford and it kinda felt like that.. Im sure if i would have revved the engine in reverse it would stay on but i didnt want to slam into my garage. I turned it on (the battery was low but it had enough juice to kick over). I put it in drive and it was fine. I put it back in reverse and it turned off again. Could this be because the battery is still not 100% or maybe a vacume problem. Im not sure where to start looking. Its done this before on the trail. Ill go from drive to neutral to reverse and the rpm's will go down and it will die. I was told that maybe the idle was set too low. It idles around 600 rpm right now. Well, thats all i can think of to type. If i forgot something needed to better answer this please let me know. Look forward to your replies.

-Max P.

Ninety Five Bronco XLT
351 Windsor Engine
E4OD Transmission
"Just Another Bronco"
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post #2 of 10 (permalink) Old 07-13-2005, 12:23 AM
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Bronco Info: '93 Custom 351W/E4OD/1356 4"Susp. 33" Tires. Now rockin the soft top.
plug wires are on wrong or are damaged?

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post #3 of 10 (permalink) Old 07-13-2005, 12:26 AM Thread Starter
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Ill check them for damage tomorrow when the sun comes up. Im sure they are not on wrong. I always do one plug at a time when i change them. I changed them about 2200 miles ago.

Ninety Five Bronco XLT
351 Windsor Engine
E4OD Transmission
"Just Another Bronco"
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post #4 of 10 (permalink) Old 07-13-2005, 01:16 AM
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Join Date: Feb 2004
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Bronco Info: '93 Custom 351W/E4OD/1356 4"Susp. 33" Tires. Now rockin the soft top.
after replacing plug wires i throw it in reverse and step on the gas. if they are wrong it kills the motor.

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Last edited by Joes93Bronco; 07-14-2005 at 01:52 AM. Reason: oops
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post #5 of 10 (permalink) Old 07-13-2005, 01:28 AM Thread Starter
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Really? Wow. Never heard of that before. Is there a specific reason why it turns it off. Im new to engines and real curious to know. Im going to change the plugs this weekend while i check the wires.. Couldnt hurt and they are pretty cheap.

Ninety Five Bronco XLT
351 Windsor Engine
E4OD Transmission
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post #6 of 10 (permalink) Old 07-13-2005, 02:11 PM
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Location: N. AL
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Bronco Info: 96 XLT. 5.8L, Auto. Warn manuals. Everythinig else pretty much stock
IAC dirty?

Mine would do that when in reverse and turning (backing a trailer). Was an easy fix, do a search here to find a lot of info on cleaning.
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post #7 of 10 (permalink) Old 07-14-2005, 01:41 AM
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The most common cause of this is a leak between the transmission pump and the reverse gear. What happens is it loads up the reverse passage and increases line pressure not allowing it to slip enough thus causing the engine to have a load and the rpm's to drop to the point of dying.

This info came from a good friend who owns a trans shop.

1979 Ford Bronco (rusty but fixable) SOLD
1974 Ford F-100
1974 Jeep CJ-5 3'' lift, Detroit Locker Front and Rear
Sitting on Jack stands

But the Ford pulls the Jeep on the trailer.
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post #8 of 10 (permalink) Old 07-14-2005, 01:46 AM
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Bronco Info: 85 bronco, lockers f & b, 351w, 9" rear, 32", jacobs ignition
it can also be the r/n safety switch. it is supposed to bump up idle when going into gear, could see it in f, but not in R.

Spark Plugs? New to me too.
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post #9 of 10 (permalink) Old 07-14-2005, 01:54 AM
All I got for X-Mas was a
 
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Join Date: Feb 2004
Location: The armpit of Kalifornia
Posts: 8,233
Bronco Info: '93 Custom 351W/E4OD/1356 4"Susp. 33" Tires. Now rockin the soft top.
not the plugs i meant wires if the wires are on wrong and you put in reverse and give it gas it will kill the motor

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post #10 of 10 (permalink) Old 07-14-2005, 01:58 AM
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Bronco Info: 85 bronco, lockers f & b, 351w, 9" rear, 32", jacobs ignition
Would it not be the same in forward. Shouldn't be as difference unless I am wrong.
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