Ram fuel pump or filter failure

[bc.gold 3,406]

The filter is built into the pump as an integral part located inside the tank, was it pump failure or filter. Regardless you have to replace both as a unit.

 

 

 

Edited August 18, 2021 by bc.gold

[oldlineman 1,537]

Dirty filter may have starved pump and caused failure. Just a thought. Bob

[peter lena 9,270]

@bc.gold without question that pan debris is showing you reason / cause  of the problem . when doing the replacement , set up a possible outside added filter ,or an accessible flush out point. Added a similar atf drain and refill to my cars , at the radiator . only thing that is vital is a refill area . just an idea, pete   

[bc.gold 3,406]

As is the practice there is a sock attached to the submerged electric fuel pump intake, this filter is up-line from the pump.

 

[bc.gold 3,406]

If you think the filter is bad, wait until you see the crap I remove form the plastic fuel tank later in the day.

 

When the truck failed us the tank was full, after lowering it I drilled a hole through the top of the pump to enable me to insert a hose attached to a small electric fuel pump used to empty the tank.

 

Now with both fuel and pump removed and the tank in a workable position I was able to have a look inside and what I see is maybe half a gallon of fuel with a ton of black crap on the bottom.

 

Had the truck gone to a commercial mechanic shop or the dealer for repair they would have put the truck on the hoist then simply lowered the tank on a transmission jack then replaced the pump without removing the fuel or cleaning out the tank. There' no way a plastic tank would contaminate fuel so this crap comes from an outside source.

 

 

[bc.gold 3,406]

I believe the black sediment comes from the refinery after burning enough fuel to accumulate 250,000 k on your vehicle this is what you end up with.

 

 

 

[bc.gold 3,406]

Figured out where the black crap is coming from. the EVAP canister is filled with activated carbon as the granules degrade with time the small particles find they're way back into the fuel tank eventually restricting the flow through the filter adding additional stress onto the fuel pump resulting in an early death.

 

The small activated carbon particles also infiltrate the roll over valve which also is part of venting the fumes from the tank, this roll over valve on Dodge Ram is an integral part of the tank and is a non replaceable part, you have to replace the tank.

 

1. Pump $380.00

2. Tank $1668.00

3. EVAP $120.00

Edited August 18, 2021 by bc.gold

[bc.gold 3,406]

Rather that spend $380.00 for a new EVAP canister I've decided to rebuild the old one.

 

If your OBDII has tripped this code P0456, small evaporation emission leak which your having some difficulty locating, it's possible the glue securing the bottom to the main body has let go and is now leaking.

 

I had no problem removing the base from this donor canister, the main failure is that the foam deteriorates over time allowing the carbon particles to enter the fuel tank as mentioned above this lead to an early fuel pump failure.

 

I'll replace the foam with felt.

 

Most of these canisters for older vehicles or no longer available so rebuilding your old one maybe your only option.

 

 

 

Edited August 20, 2021 by bc.gold

[bc.gold 3,406]

Saved $380.00, J.B. weld couple of welding clamps to compress springs during the curing process. Blew the dust out of the purge valve.

 

 

 

[bc.gold 3,406]

Removing volatile vapors from activated carbon via vacuum source, no need to open up the EVAP canister. If I ever have to refurbish another this is the method I'll use.

 

White paper, regeneration of activated carbon via vacuum, https://www.eeer.org/upload/eer-1482296824.pdf