Water in Fuel light stays on After IP swap

Louthedog · 06-26-2008, 07:35 AM

I changed my IP to a Pensacola Diesel performance pump, what a difference the dog is finally dead! truck runs at 90 mph instead of 76, does a nice burnout with all four rear tires in 1st and 2nd, smokes a bit more, EGT temps a bit higher at 75mph @ 900, Darn them 4.10's The new problem is why after the install is my water in fuel light on? I did power wash it days before and it was not lit before the change, what did I miss?

__________________
1994 4x4 1-ton, Modified 300HP IP, Custom cut fuel plate, 5" exhaust, Green air filter, 3,200Gsk, AFC mods, pillar Gauges, Hybrid HX35/40, Stage 2 injectors, 4.10 ends, Built 47RH / Lockup switch, Silencer delete.

Joe G. · 06-26-2008, 09:01 AM

You have water in the sensor connector that's on the wires from the bottom of the fuel filter. Just dry it out or wait until it dries on it's own.

__________________
KDP tab fix info and fuel system article jgeorge1@suddenlink.net '95 2500 CC auto 4X4,3.54,Combo EGT/boost guage,PacBrake,TST #5,370 injectors,DTT TC/VB, Cummins chrome kit.

Louthedog · 06-26-2008, 11:05 PM

Joe the connection was dry, what I did find was that the larger of the two relays on the firewall, the one closest to the drivers side, was washed off the tab and was upside down filled with water, it must have shorted as one of the 2 fused link wires on the drivers side battery post had fried, the blue wire is ok it was the other that toasted. Yes the dang truck wont start without manually lifting the fuel shutoff! I rehung the relay after drying it, bought the same gauge fuse link, hooked it back up but it seems the relay must be fried as it will not start. When started by hand it still displays the water in fuel light, new fuel filter did not help either. Regardless at last it is coming around and should last a lifetime at todays fuel prices, any thoughts on what might help is always appreciated!!! Went over your writeup again and saw this " If the starter contacts stick so the starter continues to run after the key has returned to the run
position the fuel solenoid may burn up because the pull up coil is held on by the stuck contacts." My new starter has begun to do just that, it only happens on occasion and it kicks out if you put the transmission in gear, shuting off the key does nothing when it sticks! crap another starter, relay and I hope not the shutoff itself.

__________________
1994 4x4 1-ton, Modified 300HP IP, Custom cut fuel plate, 5" exhaust, Green air filter, 3,200Gsk, AFC mods, pillar Gauges, Hybrid HX35/40, Stage 2 injectors, 4.10 ends, Built 47RH / Lockup switch, Silencer delete.

Last edited by Louthedog : 06-26-2008 at 11:26 PM.

Joe G. · 06-27-2008, 07:02 AM

The relay is only about $15 if you buy a 70 amp automotive relay instead of buying the part from Dodge. You can get one for less than $10 at NTE Electronics, Inc. - R51-1D70-12 - Allied Electronics but you have to pay shipping.

The starter may have a contact problem in spite of being new. If that's the case you can get heavy duty starter contacts from LarryB's Dodge starting problems solved here.

__________________
KDP tab fix info and fuel system article jgeorge1@suddenlink.net '95 2500 CC auto 4X4,3.54,Combo EGT/boost guage,PacBrake,TST #5,370 injectors,DTT TC/VB, Cummins chrome kit.

Louthedog · 06-27-2008, 09:46 PM

Thanks Joe, I bought the relay and I hope it arrives soon, also the supersize contacts for the starter and the diode to protect the fuel shutoff.

__________________
1994 4x4 1-ton, Modified 300HP IP, Custom cut fuel plate, 5" exhaust, Green air filter, 3,200Gsk, AFC mods, pillar Gauges, Hybrid HX35/40, Stage 2 injectors, 4.10 ends, Built 47RH / Lockup switch, Silencer delete.

06-26-2008, 07:35 AM	#1 (permalink)
Louthedog Cummins Fan Join Date: Oct 2007 Location: Cheyenne Wy Posts: 74 Louthedog's Truck Pics	Water in Fuel light stays on After IP swap I changed my IP to a Pensacola Diesel performance pump, what a difference the dog is finally dead! truck runs at 90 mph instead of 76, does a nice burnout with all four rear tires in 1st and 2nd, smokes a bit more, EGT temps a bit higher at 75mph @ 900, Darn them 4.10's The new problem is why after the install is my water in fuel light on? I did power wash it days before and it was not lit before the change, what did I miss? __________________ 1994 4x4 1-ton, Modified 300HP IP, Custom cut fuel plate, 5" exhaust, Green air filter, 3,200Gsk, AFC mods, pillar Gauges, Hybrid HX35/40, Stage 2 injectors, 4.10 ends, Built 47RH / Lockup switch, Silencer delete.

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06-26-2008, 09:01 AM	#2 (permalink)
Joe G. Diesel Freak Join Date: Apr 2007 Location: Eureka, CA Posts: 809 Joe G.'s Truck Pics	You have water in the sensor connector that's on the wires from the bottom of the fuel filter. Just dry it out or wait until it dries on it's own. __________________ KDP tab fix info and fuel system article jgeorge1@suddenlink.net '95 2500 CC auto 4X4,3.54,Combo EGT/boost guage,PacBrake,TST #5,370 injectors,DTT TC/VB, Cummins chrome kit.

06-26-2008, 11:05 PM	#3 (permalink)
Louthedog Cummins Fan Join Date: Oct 2007 Location: Cheyenne Wy Posts: 74 Louthedog's Truck Pics	Joe the connection was dry, what I did find was that the larger of the two relays on the firewall, the one closest to the drivers side, was washed off the tab and was upside down filled with water, it must have shorted as one of the 2 fused link wires on the drivers side battery post had fried, the blue wire is ok it was the other that toasted. Yes the dang truck wont start without manually lifting the fuel shutoff! I rehung the relay after drying it, bought the same gauge fuse link, hooked it back up but it seems the relay must be fried as it will not start. When started by hand it still displays the water in fuel light, new fuel filter did not help either. Regardless at last it is coming around and should last a lifetime at todays fuel prices, any thoughts on what might help is always appreciated!!! Went over your writeup again and saw this " If the starter contacts stick so the starter continues to run after the key has returned to the run position the fuel solenoid may burn up because the pull up coil is held on by the stuck contacts." My new starter has begun to do just that, it only happens on occasion and it kicks out if you put the transmission in gear, shuting off the key does nothing when it sticks! crap another starter, relay and I hope not the shutoff itself. __________________ 1994 4x4 1-ton, Modified 300HP IP, Custom cut fuel plate, 5" exhaust, Green air filter, 3,200Gsk, AFC mods, pillar Gauges, Hybrid HX35/40, Stage 2 injectors, 4.10 ends, Built 47RH / Lockup switch, Silencer delete. Last edited by Louthedog : 06-26-2008 at 11:26 PM.

06-27-2008, 07:02 AM	#4 (permalink)
Joe G. Diesel Freak Join Date: Apr 2007 Location: Eureka, CA Posts: 809 Joe G.'s Truck Pics	The relay is only about $15 if you buy a 70 amp automotive relay instead of buying the part from Dodge. You can get one for less than $10 at NTE Electronics, Inc. - R51-1D70-12 - Allied Electronics but you have to pay shipping. The starter may have a contact problem in spite of being new. If that's the case you can get heavy duty starter contacts from LarryB's Dodge starting problems solved here. __________________ KDP tab fix info and fuel system article jgeorge1@suddenlink.net '95 2500 CC auto 4X4,3.54,Combo EGT/boost guage,PacBrake,TST #5,370 injectors,DTT TC/VB, Cummins chrome kit.

06-27-2008, 09:46 PM	#5 (permalink)
Louthedog Cummins Fan Join Date: Oct 2007 Location: Cheyenne Wy Posts: 74 Louthedog's Truck Pics	Thanks Joe, I bought the relay and I hope it arrives soon, also the supersize contacts for the starter and the diode to protect the fuel shutoff. __________________ 1994 4x4 1-ton, Modified 300HP IP, Custom cut fuel plate, 5" exhaust, Green air filter, 3,200Gsk, AFC mods, pillar Gauges, Hybrid HX35/40, Stage 2 injectors, 4.10 ends, Built 47RH / Lockup switch, Silencer delete.