Engine/Transmission (1998.5 - 2002) Lift Pump Failure - AGAIN ?

[snowracer69]

Never had a LP fail while I had my FP gauge in that was able to see on my pressure gauge. First was making a bad noise, second was leaking fuel... both still had 15 PSI.



I run a mechanical boost gauge in my cab with fuel directly to it. Have put in two systems this way and nary a drop of fuel inside the cab in well over a year now (knock on wood). Have an inline needle-valve just in case though. Works great and don't worry about isolator going bad and sending antifreeze or something through my VP-44.



2ndGen2500, you got PM later this afternoon (gotta run to class, but will let you know what I think of my B1 later).



Josh

 

[lizzyhermit]

the damage is done $$$$$$$$

injection pump failed with two codes P0254 and P1688. if any of you can shed light on these I'd appreciate it for my edification.



pump = $2362 minus $800 core charge

labor = $378. 68

towing = $38. 00



and the lift pump is good !



I guess the only fun I got from this was the reaction of the cashier lady in response to her question "Do you know how much the total bill is?"



I replied "I was told $2. 26". Her facial expression was priceless, knowing that I was about to go ballistic. But I gently assured her that, yes, I knew, and after all it was only money!!!



Her relieved smile was enjoyable since, as she stated, she is ALWAYS the one that gets yelled at !



expensive? yes, but I still love my truck ! it ain't a Chebby or Furd !

 

[Cobra]

LP failure

Lizzyhermit,



Hey that was a good story about the lady.



In answer to your question about the FP on a dying LP. I have had two of them go. The first one at about 10,000 miles, the fuel pressure dropped from 12psi at cruise to 3 psi at cruise. The pressure never got better than 3 psi even at idle.



The second one went just a few weeks ago. With 27,000 miles on the clock and heading to Arizona from Pa. , I noticed the FP at cruise was dropping to 9 from 12. The next day of my journey the FP was about 6 at cruise. After a few days in Az the FP went to zero.



The strange thing thought, when they replaced the LP my gauge still showed zero. Then on the way home my gauge came alive showing 3 to 5 psi for twenty min or so and then went up to 12 at cruise, and 14 at idle. Go figure.

 

[lizzyhermit]

the saga continues......

0830 this morning #1 daughter calls "Dad, your truck has no brakes and is very hard to steer".



so the old man goes home and there is a very large puddle under the truck. now do you 'spose it is a coinsidence that the injection pump was replaced and the power assist happend to start leaking?



I can't wait for the dealer folks to call me !

 

[JAS]

Lift pump died here too

85K on my 2001. Wouldn't start last weekend. Got down to -10 and I wasn't plugged in and NO anti-gel. Long story short... new batteries and PS911 in the filter housing for a few hours, she started right up and ran for about 5 seconds then died.



Started the bleeding process from the banjo bolt behind the filter but noticed that when I bumped the starter NO DIESEL fuel was rushing out like normal, even though I could HEAR the lift pump running. I was concerned at this point about the lift pump but rationalized that maybe the fuel was too cold to flow well.



Had it hauled into an (apparently unqualified repair shop). They said that I had air in the lines and that they started it right up. When I picked it up I asked if they checked the lift pump. Their response... The what?



Next day I was leaving work around noon. Started right up and died. Started on the next try. Ran it fairly hard home to get everything warmed up. Threw on my coveralls and opened the banjo bolt, bumped the starter, again no diesel mess.



Drove it to a dealer just down the road. They called me the next day and told me it was the lift pump that was dead and that the fuel pump looked OK.



Time for guages!

 

[Sticks]

Re: Lift pump died here too

Originally posted by JAS





Drove it to a dealer just down the road. They called me the next day and told me it was the lift pump that was dead and that the fuel pump looked OK.



Time for guages!

I love it.



"Yup, it looks like a fuel pump. No dents, or scratches. No cut wires or missing connections. Seems to be attached to the side of the engine pretty tight. No empty screw or bolt holes. It must be OK. "



Boy am I in a mood tonight.

 

[15w40]

JAS, in cold weather you have to run an anti-jell in the fuel to save the lift pump. I have found and read that a plastic coupler between the motor and rotary vein pump can break if there is too much resistance. Jelled fuel will be a problem because it causes drag on the pump. The pump motor then will chew out the plastic coupler and render the pump useless. Why Carter designed this mechanical fuse for a diesel application is beyond me.