pre failure fuel pump replacment

ron55 · 10-18-2010, 08:44 AM

What do you think of replacing the fuel pump at say 50K miles before it fails.
I have always replaced the fuel pump at 100K in my personal vehicles just to head off problems. I almost have never ran the gas tank below 1/2 full.
Ometech what pump would you replace yours with? thanks guys

DriVer · 10-18-2010, 10:34 AM

Quote:

Originally Posted by ron55

What do you think of replacing the fuel pump at say 50K miles before it fails.

I just replaced my pump at Larry's Auto Clinic at 87,000 miles. I think you have at least another year on your pump so I would not rush it.

Joe Gilbert · 10-19-2010, 05:38 PM

DriVer; did you have an actual problem or did you think you were reaching the end-of-life of the original fuel pump? Seems like this could turn into an interesting post. I know our motor homes use lots of fuel however, since most in-tank fuel pumps use return lines it would seem to me that our cars or pickups would pump just as much fuel. I would not consider replacing my Taho fuel pump just because I had 80,000 miles on it. Is my thinking way off base?

JoeG

DriVer · 10-19-2010, 05:59 PM

Quote:

Originally Posted by Joe Gilbert

DriVer; did you have an actual problem or did you think you were reaching the end-of-life of the original fuel pump?

JoeG, It cost over $500.00 to replace a pump on one of these machines so it's not something that I chose to do.

I actually had a failure to start condition. I obtained a (reliable) fuel pressure gauge and drove around until the pump quit. I observed 0 PSI on the gauge and the MH was dead on the side of the road and required that it be towed to the WASC in Myrtle Beach. This happened before our trip to Cape Hatteras and I was going to be boiled in oil if I didn't rule out this pump problem before I got on the road.

Replacing the pump the MH is doing just fine.

Did I ever tell you the story where I purchased a fuel pressure gauge from Harbor Freight? When I hooked it up to the rail and tuned on the engine ..... it promptly filled up with gasoline and the gas began gushing out onto the engine.

max49 · 10-19-2010, 07:09 PM

Quote:

Originally Posted by DriVer

Did I ever tell you the story where I purchased a fuel pressure gauge from Harbor Freight? When I hooked it up to the rail and tuned on the engine ..... it promptly filled up with gasoline and the gas began gushing out onto the engine.

you never know for sure with HF tools, some are good. I've got a 16 yr old HF bench grinder that works great. Bought a new HF one with a light on it and I had to help it it to get spinning with my hand. Took it back and still use the 16 yr old one.

Joe Gilbert · 10-19-2010, 07:27 PM

I know that these fuel pump assemblies are very expensive which is why I was thinking that you did not replace it just because your coach has 87,000 miles. Actually I expect a lot of shops would charge a good deal more than $500. Larry comes through again. My previous F53 chassis needed a new fuel pump (they all failed) and I know that the dealer charged Ford more than $600.

I also have a few HF items. Most have been OK.

JoeG

DriVer · 10-19-2010, 08:18 PM

Quote:

Originally Posted by Joe Gilbert

Actually I expect a lot of shops would charge a good deal more than $500. Larry comes through again.

JoeG, I don't have the number in front of me at the moment but it was more than $500.00

ron55 · 10-20-2010, 04:38 AM

that why for the thread, I do most of my own work and I would only have to pay for the fuel pump. I would rather do it at my convenience than on the road somewhere

DriVer · 10-20-2010, 09:41 AM

Quote:

Originally Posted by ron55

I would rather do it at my convenience than on the road somewhere

That's true, how would you manage 70 gallons of gasoline on the road if present and drop the tank ??? Surely at minimum a floor jack is required and that is only typically used under good conditions.

tpmcn · 10-20-2010, 10:11 AM

Quote:

Originally Posted by DriVer

That's true, how would you manage 70 gallons of gasoline on the road if present and drop the tank ??? Surely at minimum a floor jack is required and that is only typically used under good conditions.

My Fuel pump went out about 6 months ago for the 2nd time. This time I lifted the flooring in the compartment above the Fuel Tank. Cut a 1.5' x 1.5' hole in it and have enough room to work on the pump without droping the tank. Thank goodness I did this it turned out to be the connector to pump that was the problem. Replaced the connector and have been going great gun since then. By the way I built another cover that seals the area below the coach and tank so I could work on it on the road if necessary. Cost $15.98 and 8 hours of my time. Most of the time was in finding the problem

ron55 · 10-20-2010, 10:31 AM

I got to look into cutting access to my fuel pump what kind lof motorhome TPMCM?

Full-Timers · 10-20-2010, 07:47 PM

I am a believer in, “If it aint broke, don’t fix it.” I know the one I got works and don’t want to replace it with a bad part or chance messing something else up while doing it.

By the way, I did have to have my fuel pump replaced.

tpmcn · 10-21-2010, 07:55 AM

Quote:

Originally Posted by ron55

I got to look into cutting access to my fuel pump what kind lof motorhome TPMCM?

Ron55, My MH is a 35.5' Georgie-Boy 2003 with a 2002 WH Chassis. The Fuel Tank sits centered under a through access that goes completely across from one side to the other (if you can picture that). The Bed slide out sits above this area. The area opening between the Bottom of the coach and the Floor above the Gas tank is ~16" but the center point is only 4' wide with drop downs on both sides. This gave me enough room to remove the hold down bolts on the floor and allowed me to watch as I cut the 18" x 18" square out. There was enough extra wiring in my case to cut,splice, & solder the new connector in then replace the cutout by installing a 1" wide fitting to the cutout and screwing it back in place. In any case I have enough room to remove the pump without dropping the tank now. I don't know why the company didn't do that for their customers or mechanics. Like most things now days you save the $ vs help the downstream.

scoutmstr · 10-21-2010, 06:48 PM

Quote:

Originally Posted by tpmcn

Ron55, My MH is a 35.5' Georgie-Boy 2003 with a 2002 WH Chassis. The Fuel Tank sits centered under a through access that goes completely across from one side to the other (if you can picture that). The Bed slide out sits above this area. The area opening between the Bottom of the coach and the Floor above the Gas tank is ~16" but the center point is only 4' wide with drop downs on both sides. This gave me enough room to remove the hold down bolts on the floor and allowed me to watch as I cut the 18" x 18" square out. There was enough extra wiring in my case to cut,splice, & solder the new connector in then replace the cutout by installing a 1" wide fitting to the cutout and screwing it back in place. In any case I have enough room to remove the pump without dropping the tank now. I don't know why the company didn't do that for their customers or mechanics. Like most things now days you save the $ vs help the downstream.

Rexhall's come with a built in access to the fuel pump module reached by unscrewing a plastic ring large enough to remove the module