lift pump failure questions

IDIoit

MachinistFabricator
Supporting Member
Joined
Aug 26, 2014
Posts
13,318
Reaction score
3,879
Location
commiefornia
01 SD
was low on fuel the other day and took my boat to the launch ramp.
then it started acting weird.
threw high to low codes
and ICP codes.

let it sit for a day and went to work on it
fired it up and it ran like normal
filled the tank
test drove it and all was well,
on the way home, it started acting up again.

ICP is at 500+ when cranking

but all of this tells me I have a *****'d lift pump
thoughts?
 

79jasper

Chickenhawk
Joined
Oct 13, 2012
Posts
17,367
Reaction score
1,930
Location
Collinsville, Oklahoma
Have you been into the tanks at all?
Could be the pickups. But pump is "cheap."
But.... I would start with the icp. Those dudes will cause all sorts of weird running.

Sent from my SAMSUNG-SM-G935A using Tapatalk
 

IDIoit

MachinistFabricator
Supporting Member
Joined
Aug 26, 2014
Posts
13,318
Reaction score
3,879
Location
commiefornia
already swapped out ICP no change.
tanks have been modded and gone through
06 F450 rear tank
the e-pump is off the parts truck and has been sitting for Thor knows how long
 

79jasper

Chickenhawk
Joined
Oct 13, 2012
Posts
17,367
Reaction score
1,930
Location
Collinsville, Oklahoma
Could just be junked up.
Did you ever get the injector clack from air or anything like that?

Sent from my SAMSUNG-SM-G935A using Tapatalk
 

IDIoit

MachinistFabricator
Supporting Member
Joined
Aug 26, 2014
Posts
13,318
Reaction score
3,879
Location
commiefornia
oah yea, it sounds like its starving for sure.
atleast that's what my inexperience tells me lol
 

79jasper

Chickenhawk
Joined
Oct 13, 2012
Posts
17,367
Reaction score
1,930
Location
Collinsville, Oklahoma
Then I would start there.
I've seen people have the inertia switch act funky too. Even though they weren't in a wreck or anything.

Sent from my SAMSUNG-SM-G935A using Tapatalk
 

IDIoit

MachinistFabricator
Supporting Member
Joined
Aug 26, 2014
Posts
13,318
Reaction score
3,879
Location
commiefornia
I hate those switches, I should delete the damn thing lol
 

FarmerFrank

Full Access Member
Joined
Sep 5, 2013
Posts
1,364
Reaction score
59
Location
Blairsville, Pa
The obs have a Schrader valve. I would assume the SD do also.

Sent from my SAMSUNG-SM-G935A using Tapatalk

Just worked on an SD hpop last night. Didn't see any Schrader valves when I pulled the fuel bowl


Sent from my iPhone using Tapatalk
 

IDIoit

MachinistFabricator
Supporting Member
Joined
Aug 26, 2014
Posts
13,318
Reaction score
3,879
Location
commiefornia
no Schrader valve that ive seen,
e-fuel.
not gonna get to this truck until next week
 
Top