I read a lot of stock pumps fail in the 100-150K mile range. A lot of newer trucks than mine have had this problem. Which brings me to the point of this post. My LP is 5+ years old, but low mileage (36,xxx miles). Am I still good for another 50K miles, or do they wear out based on age?

Which has more effect......miles driven, or age of the pump?

I am thinking about getting a Geno's pump to have in the toolbox. If the stocker fails, I don't want the dealer to put an in-tank pump in. I am planning on getting a FASS or AirDog at some point in the future (after getting some other bills paid first).

Truck is stock for now, but even in the future I don't plan anything radical. I do tow an 18K fiver once in awhile though, and don't want to be stuck broke down somewhere.

Thanks.....
Steve

 

I think the 100k-150k miles are the expected life of the pump but lots have had failures much sooner, including me. Mine failed between 36k and 40k miles, can't remember the exact milage then. I replaced it with the Air Dog 150 knowing that future mods were in my head for this truck. It has worked out very well. Although I still need a fuel press. guage. You'll know when the lift pump starts to go by the truck not wanting to start one momoent and then start the next or cut out all together while driving down the road and then take a few minutes to start back up again. That's what mine was doing.

 

Mine was out at at about 52,000

 

Radshooter,

I was in the same boat as you. Age or miles. I didn't want to chance it anymore so recently replaced the stock pump with an aftermarket unit at 50k miles.

MikeyB

 

Mine is still going at 100,700 miles. Waiting for warm weather for AD100 install. Oh and fingers crossed that I make it to warm weather

 

definately go with a FASS or an Airdog. Its just one of those little things on our truck that always make us weary, and once to get that fixed, and the tranny built up; its way more fun to drive our trucks not having to worry as much

 

90,000/5 years on mine

 

my truck has 75xxxkms ( less than 40k miles) and it ran perfect.
I just put a FP gauge on and found it was at 4psi at idle and went to 0psi with any peddle effort. Same age as yours and close to the same miles so.... even when it seems like its still working you cant really be sure with out a gauge.
As to the FASS/AD debate? I went with a FASS simply because the dealer I buy my stuff from sell them and local support is important to me.

 

91000. replaced it with Opie's belt drive pump. Didn't want to deal with another electrical part going bad on the road.

 

I just replaced mine with a stock one from Genos at 52K. It still worked, but I didn't want to replace it on the side of the road. Now the old one is my spare. The install took about an hour, pretty easy, but I wouldn't want to do it in the rain or snow, or at night. I wouldn't count on your original pump lasting to 100K. As a bonus I picked up a slight mileage gain.

 

In my case, the lift pump started leaking at 72k. It ran fine, but when it was cooler in the morning, it would leak terribly. The dealer replaced it with the in-tank pump under warranty, and said the o-ring had failed, which was causing the leak.

 

Mine failed last November. Its an 03, 48K miles, that was put in service June 03..I had 2 instances of it dying. First time I though it was water in the fuel. Second time, I went to drain the filter, nothing came out Cycled the key a couple of times and it started. Dealer replaced with intank model for $100..

 

Mine died at 81900, several hours from home and with the camper in tow. It can die slowly or switch off like a light at the worst time. In my case, the truck was towed to a dealer for an in-tank pump under warranty and the camper was towed to a less than scenic campground where we were stranded for 4 days. A spare replacement pump is great if you have the time and tools to fix it on the side of the road. I would recommend having the in-tank done if you are under warranty or replacing the stock pump with a Raptor 100 or FASS HPFP 95. My truck is noticably faster and gets better mpg with the in-tank pump conversion. Compared to the time and money that the failure of the original pump cost me, I would have been much better off switching to an aftermarket fuel system before the stocker stranded us.

 

Mine is original at 380,000 miles.

 

That is a good testament to the reliability of the in-tank lift pump. I was speaking in reference to the fuel filter canister-mounted lift pump on 2003-2004.5 trucks.