Engine stalling in low range

[BC backroader]

Twice on recent trail runs, the engine has stalled while descending a steep grade in low range. Has anyone else encountered this odd behavior? It's a bit unsettling to lose power steering and power brakes while going down a steep hill. It has restarted promptly each time, but I want to find and fix the problem to eliminate future occurrences.

 

[alrock]

Only happened to me once, and it was due to a bad head on my 3.7 I5. Not by any means saying that's the culprit for your vehicle but that was one of my warning signs on my H3.

 

[Jeff V.]

Not that this makes the problem any more acceptable, but you shouldn't lose brakes if the engine stalls. These trucks have an electric brake booster. They don't use engine vacuum. That might be an indication your problem is electrical rather than mechanical.

 

[BC backroader]

Actually, I don't know if the brakes were unboosted , as the speed was so slow that I just hit the key and restarted. It's the fact that the engine quits while in that situation that has me concerned.

 

[MTUH3]

Mine does that often in snow. I would often get a CEL around the same time. I think it was because of a cracked exhaust manifold. Now way to prove it, as I have not repaired the crack yet

 

[4speedfunk]

Could be a motor mount.