1996 Ford Explorer Sudden stop when backing up

Tiny
EXPLORER1
  • MEMBER
  • 1996 FORD EXPLORER
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 103,000 MILES
My Explorer drives fine when going forward, but when I put it in reverse, it will drive a couple yards and then come to a jerking stop, as if I had pulled the parking brake (without me having done anything). If I hit the gas, it won't move. If I go forward first, I'm then able to go in reverse for a yard or so again before it comes to a jerking halt again.

Any ideas what this could be and how much a repair might cost?
Saturday, March 7th, 2009 AT 3:52 PM

5 Replies

Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
Any associated noises? Clanking or grinding?
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Saturday, March 7th, 2009 AT 6:56 PM
Tiny
EXPLORER1
  • MEMBER
  • 2 POSTS
Not really - it just comes to a dead halt, as if I had slammed on the breaks. This started after a mountain trip, and the first time it happened is when I quickly switched into reverse while driving into and then backing up from a dirt-filled, inclined driveway.

I read about a forum user with a similar issue, but going forwards. Maybe something with the spider gears coming lose in the differential?

Come to think of it, when I drive forwards there's a slight cyclical sound (swish swish) but I think that's been there for a while and is unrelated.
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Sunday, March 8th, 2009 AT 9:52 AM
Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
Only one way to tell for sure, pull the cover and see if any metal parts come out!
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Sunday, March 8th, 2009 AT 3:32 PM
Tiny
EXPLORER1
  • MEMBER
  • 2 POSTS
Turns out a brake caliper had popped out. Minor repair - phew! Glad it wasn't something worse.
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Monday, March 9th, 2009 AT 8:49 AM
Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
Pist came out of the bore?
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Monday, March 9th, 2009 AT 10:59 AM

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