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Use forscan or odblink to measure your requested high pressure fuel vs your actual . At idle it’s usually both in the 4000 range. If these numbers are far apart, you could have wear.
Those flakes look a lot like what I saw in the bottom of my under bed fuel filter reservoir I took a photo of.
Originally Posted by jollyrogr
Glitter is found on the FVCV and is silver in color. That just looks like dirty fuel. Do you have a DPK installed?
No DPK yet. Also see video @ link above in response to FishOnOne's reply.
Originally Posted by speakerfritz
Use forscan or odblink to measure your requested high pressure fuel vs your actual . At idle it’s usually both in the 4000 range. If these numbers are far apart, you could have wear.
Will do, thanks for tip. I have foreskin, er, I mean forscan.
I have seen a few metallic flakes way back when on my primary filter but never tested if magnetic. Don't recall any recent changes having flakes on them... Have an impending oil change coming and fuel filters are due, will check then for reference...
Glitter is found on the FVCV and is silver in color. That just looks like dirty fuel. Do you have a DPK installed?
^^^ Above is the only way to confirm if the metal is from the CP4 or from some other source (ie. crude in fuel, wear of the pump at the fuel station, etc). That said getting a DPK on there is never a bad idea.
Thanks! I have a Banks iDash and will check this out today when I start and drive the truck for the first time since the fuel filter and oil/filter change I did when I discovered the specks of whatever in the photo I posted.
Thanks! I have a Banks iDash and will check this out today when I start and drive the truck for the first time since the fuel filter and oil/filter change I did when I discovered the specks of whatever in the photo I posted.
needless to say…if the requested fuel pressure vs actual is far apart…I would not drive it…so check it at idle.
but…if it is wide apart…forgetting about the unknown particles in your filter base…high pressure variances could be clogged metering valve, debris in fuel rail and or cp4 problems.
needless to say…if the requested fuel pressure vs actual is far apart…I would not drive it…so check it at idle.
but…if it is wide apart…forgetting about the unknown particles in your filter base…high pressure variances could be clogged metering valve, debris in fuel rail and or cp4 problems.
Understood. NO driving if requested vs. actual are very far apart and actual is the lower number.
If these numbers look "normal" I will do a short drive. I'm going to tear down to point of installing the DPK and check the FCV for any debris. Then decide at that point if I will install DPK or if debris is found I will install the DCR and do the entire fuel system swap including the tank BS.
If you're going to go through the work, just install the DPK or DCR.
Originally Posted by JoeUser
That's exactly my initial thought, as well. Hell, all that effort to get to the FCV is the majority of the DPK job anyhow...
Exactly, that's what I meant when I posted "...at that point I will decide if I will install DPK or....install the DCR", meaning I will do one or the other.
Been there, done that. From what I understand of the fuel system, the fuel is drawn through the filter from the tank, even though the pump is IN the tank, is still draws like the early models so the pump has filtered fuel going through it instead of drawing crap from the bottom. The fuel enters from the tank and runs outside of the filter, gets pulled through the media, then pumped to the secondary before being returned. I think it actually will pass through that filter housing twice to remove water. I saw the same thing, (see above thread link) when I replaced my filter. I believe it is construction crap left in the tank from manufacturing.
If the CP4 is failing there would be a light coating of metal particles all over the housing and filter.
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