Jeep Cherokee electrical shut down

In reading many other postings, all the little things may be adding
up...
92 Jeep Cherokee. 4.0 Fuel Injected, Straight 6. 187K Miles. Living in
the Desert.
Knocks at start up, but quietes down by 150 degrees, or I can turn off
the engine and restart it and it is quiet.
Intermittent Rough Idle in reverse or forward, but not in nuetral or
park.
Intermittent (but getting more frequent) cut out anywhere from 25-65
mph. Driving along just fine and the rpm drops to zero, (radio, etc
are fine), then immediatley return. Shop says no codes.
Possibly a power booster leak on hard brake.

Any ideas?

They have a CPS that is prone to a dirty connection on the plug. The
CPS is located on the drivers side bell housing. Some plugs are on top
of the manifold, some are over by the dipstick. A spray with an
electronic contact cleaner works well on them. Same goes for the two
plugs on the throttle body. The TPS gets dirty and the idle can act
strange or the idle air control can get dirty inside the throttle body.

There is a wire mesh strap from the rear of the head tot he firewall
that can cause strange stalls when it's going bad too.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Canadian Off Road Trips Photos: Non members can still view!
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wrote:
>
> In reading many other postings, all the little things may be adding
> up...
> 92 Jeep Cherokee. 4.0 Fuel Injected, Straight 6. 187K Miles. Living in
> the Desert.
> Knocks at start up, but quietes down by 150 degrees, or I can turn off
> the engine and restart it and it is quiet.
> Intermittent Rough Idle in reverse or forward, but not in nuetral or
> park.
> Intermittent (but getting more frequent) cut out anywhere from 25-65
> mph. Driving along just fine and the rpm drops to zero, (radio, etc
> are fine), then immediatley return. Shop says no codes.
> Possibly a power booster leak on hard brake.
>
> Any ideas?