Military-Vehicles: Re: [MV] M38 loses power, stalls

Re: [MV] M38 loses power, stalls

Dan Schultz (schultz@inficad.com)
Thu, 31 Jul 1997 20:30:48 -0700

I had exactly the same problem a few years ago - turns out the vent in my
gas cap was plugged so vacuum built up in the tank and no gas flow!
Hope your problem turns out to be as simple.

Dan Schultz
Mesa, AZ

----------
> From: SBJohnston@aol.com
> To: Mil-Veh@skylee.com
> Subject: [MV] M38 loses power, stalls
> Date: Wednesday, July 30, 1997 6:36 PM
>
>
> Hi gang:
>
> I have a problem that is driving me nuts! Or put another way, driving
my
> M38 is driving me nuts. About every other time I take the old girl out
on
> the road, she lets me down.
>
> After about 10 minutes of normal suburban driving the engine begins to
lose
> power, sputtering down to almost nothing. The throttle action seems
"mushy",
> not responsive. With a few pumps I can rev it back to life a few times,
but
> finally it stalls entirely. Then I can crank and restart the engine a
few
> times, make a little more progress down the road, then the cycle repeats.
> Finally, the engine dies and refuses to restart till I leave it sit five
> minutes or so. Then I can restart and nurse the sputtering engine home.
>
> The symptoms seemed to point to fuel starvation -- the mushy gas pedal
action
> particularly. I measured the output of the fuel pump at about 3 lbs --
that
> seems low. Opinions?
>
> In the shop I can sometimes reproduce the rough idle. Once while it was
> sputtering like that I quickly connected a can of gas on the floor
directly
> to the input of the fuel pump. It sputtered just the same. Hmmm. That
> rules out a plugged fuel filter or lines ... perhaps something blocking
the
> carb? Last time I thought I found the trouble when I cleaned the carb
intake
> screen, but not so.
>
> Someone thought it might be vapor lock -- but the engine isn't really
warmed
> up when it strikes.
>
> I am getting tired of just driving around the block -- I've got to get
this
> problem fixed so I can enjoy the jeep and not be afraid to drive too far
from
> home <<sniff>>. Any ideas?
>
> Steve Johnston
>
> sbjohnston@aol.com
>
>
>
> ===
> To unsubscribe from the mil-veh mailing list, send the single word
> UNSUBSCRIBE in the body of a message to <mil-veh-request@skylee.com>.

===
To unsubscribe from the mil-veh mailing list, send the single word
UNSUBSCRIBE in the body of a message to <mil-veh-request@skylee.com>.