Trailer tow vehicle fuel pumps
A Jeep Grand Cherokee. However, I've heard of a number of other makes with
the same problem - for example, BMW's. Believe me, a dead fuel pump raises
"PITA" to a whole new level.
It is especially galling to me that a vehicle like a Jeep which is more than
capable of getting you deep into the back country can strand you there with
a dead fuel pump. Needless to say, Jeep entheusiasts have given D-C hell
about this. Unfortunately, I can't say for sure is has had any effect.
Jeepers are still modifying their vehicles with aftermarket pumps. My
replacement is a MSD in-line, Jegs catalog number 121-2225 which is noiser
than I would like. There are other pumps advertized as "quiet" but I can't
say how quiet. Mounting the pump in rubber helps a lot.
A fuel pump is a critical component with no backup or "limp-home"
capability. They should be as bullet proof as anything else in the vehicle.
Especially so if the pump can't be repaired by a knowledable owner on the
roadside.
Carburated engines can be jury-rigged to run after a fashion with a one
gallon fuel can on the roof gravity feeding fuel to the carburator. With
fuel injection needing 45 psi or more, you're SOL.
As for Ford reliability, my mechanic says the old saw 'Fix Or Repair Daily'
isn't true. He says FORD is really DROF spelled backwards which stands for
"Driver Returns On Foot".
Bill Daniels
"Graeme Cant" gcantinter@tnodedotnet wrote in message
...
Bill Daniels wrote:
Daimler/Chysler has paid for 4 of my pumps. Even though they were
replaced at no charge, I've replaced mine with a heavy duty off-road
racing unit that I can easily change on the roadside in about ten minutes
Oh, oh! I may have to pay attention here.
Daimler-Chrysler have paid for two sender units for me. Sounds like I may
have got two new pumps as well.
What were they in, Bill? ...and what's your replacement unit?
GC
Bill
"Bob Kuykendall" wrote in message
oups.com...
These electric pumps, according to an informal survey of friends and
acquaintances, fail with alarming frequency - usually within ~50K miles
and
each 50K thereafter.
That's counter to my personal experience. I've done four fuel pumps
for my Volvo tow vehicles; none of them let go prior to the 200,000
mile mark. All of the replacements outlasted the vehicles.
Once you are on the roadside, you will find that no matter how
good you may be at fixing cars, there is nothing you can do but call a
tow
truck since pump replacement requires a high bay hoist where the gas
tank
can be removed. It just isn't a DIY job.
Disagree:
A) Everything is DIY for the resourceful and motivated.
B) All of the cars for which I've replaced the in-tank pump allowed
access through a panel in the trunk or under the cargo deck. None so
far have required dropping the tank.
C) For many cars with Bosch K-Jetronic, LH-Jetronic, and similar
systems, there are actually two pumps: an in-tank centrifugal pump and
an external constant-displacement pump. The in-tank pump just delivers
fuel to the main pump, and is critical only at 1/4 tank fuel level and
below. The usual sign of a failed or failing in-tank pump is poor
running below 1/4 tank, and whining noises from the main pump.
D) In my experience, failure of fuel pump relays is far more common
than failure of the pump. Usually they can be fixed by peeling them
open and resoldering the crack-prone joints where the heavy relay
frame meets the circuit board.
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