GreggH
Registered User
So... I need some help diagnosing my truck.
‘94 f350 idi N/A but added a turbo
I play with this truck in the mud. The last time I had it out I got stuck to the bottom of the cab, which put the exhaust under water. The truck stayed running but once I was pulled out (within 10 mins) I rev’ed her up just to clear any water in the exhaust. After it rev’ed up and came back down in RPMs, she died.(engine and most of truck completely out of water after being pulled out). So I tried to start it back up and it had a really sluggish, dragging turnover. Not the speed of turn over as normal. Messed with it for a while but ended up just pulling it back to the camp site for the night.
Next day, I start messing with it. Engine turns over and starts right up, no problems. I let her run for a bit while I’m cleaning a little bit of muddy water out of the intake duct (did not make it all the way to the air cleaner). While it’s sitting there idling just normal, all of a sudden she just dies. I go back to try to start her back up and it does the same sluggish/ dragging start with no luck for firing off so I leave it to mess with later.
Second day, go out and same thing. Fires right up. So I’m looking at the gauges a little more. I installed a pillar cluster with fuel pressure pre-filter (more about this in a sec), EGT, Trans Temp, and Boost, along with the dash gauges of oil pressure, coolant temp, amp, etc. All looks normal...
So for the fuel pressure, for some reason over the years, I have not had very good luck with the mechanical fuel pumps, them always going out and the truck takes a good bit of cranking to fire up each time if at all in the cold with a block heater on. So I started running a cheap in-line fuel pump from the parts store. It fire up quick every time. But the parts store el cheapo ones don’t last long so after reading recommendations on here, I bought a Facet filtered inline fuel pump... has been working great. It is wired up to run constantly. During all this I have maintained good fuel pressure (5psi +/-) pre-filter. Read that the IP only needs 1-2psi so plenty of pressure. Before anybody asks, no I have not installed any kind of pressure reg.
Btw, the batteries are fairly new and I also have tried putting a jump box in addition to them just to eliminate the low charge.
Have heard of starters dragging once they warm up but don’t feeling like that’s it.
So I am leaning towards the IP is bad. Am I correct in thinking this?? Ya’ll have way more experience on this group than I do with these engines, I have just learned as I go. Any help is appreciated.
Thanks
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‘94 f350 idi N/A but added a turbo
I play with this truck in the mud. The last time I had it out I got stuck to the bottom of the cab, which put the exhaust under water. The truck stayed running but once I was pulled out (within 10 mins) I rev’ed her up just to clear any water in the exhaust. After it rev’ed up and came back down in RPMs, she died.(engine and most of truck completely out of water after being pulled out). So I tried to start it back up and it had a really sluggish, dragging turnover. Not the speed of turn over as normal. Messed with it for a while but ended up just pulling it back to the camp site for the night.
Next day, I start messing with it. Engine turns over and starts right up, no problems. I let her run for a bit while I’m cleaning a little bit of muddy water out of the intake duct (did not make it all the way to the air cleaner). While it’s sitting there idling just normal, all of a sudden she just dies. I go back to try to start her back up and it does the same sluggish/ dragging start with no luck for firing off so I leave it to mess with later.
Second day, go out and same thing. Fires right up. So I’m looking at the gauges a little more. I installed a pillar cluster with fuel pressure pre-filter (more about this in a sec), EGT, Trans Temp, and Boost, along with the dash gauges of oil pressure, coolant temp, amp, etc. All looks normal...
So for the fuel pressure, for some reason over the years, I have not had very good luck with the mechanical fuel pumps, them always going out and the truck takes a good bit of cranking to fire up each time if at all in the cold with a block heater on. So I started running a cheap in-line fuel pump from the parts store. It fire up quick every time. But the parts store el cheapo ones don’t last long so after reading recommendations on here, I bought a Facet filtered inline fuel pump... has been working great. It is wired up to run constantly. During all this I have maintained good fuel pressure (5psi +/-) pre-filter. Read that the IP only needs 1-2psi so plenty of pressure. Before anybody asks, no I have not installed any kind of pressure reg.
Btw, the batteries are fairly new and I also have tried putting a jump box in addition to them just to eliminate the low charge.
Have heard of starters dragging once they warm up but don’t feeling like that’s it.
So I am leaning towards the IP is bad. Am I correct in thinking this?? Ya’ll have way more experience on this group than I do with these engines, I have just learned as I go. Any help is appreciated.
Thanks