Attention: TDR Forum Junkies Hi all,
I'm fairly new here and am hoping someone can help me with this. On my 99 Dodge 3500 I've been having a problem keeping my lift pump running. It will run for 4sec. when the key is turned on and 25sec. when cranking as it should. But when the engine is running I will either loose pressure altogether or have it drop low enough to activate the low pressure warning light. When the L/P was replaced I had the same problem. I have gauges on both sides of the filter to check differential pressures. The pressures react the same on both gauges so I don't think it's a filter problem. About 6 months ago I bypassed the L/P wiring and wired it off a switched leg in the fuse box. It worked fine until a week ago when I started getting the warning light on again when under load. I checked the gauges and found that the pressure had dropped from 15PSI to 10PSI and at times down to 5PSI. Has anyone had this problem and found a cure? I find it hard to believe that a new pump would wear out in less than a year. Any thoughts on aftermarket fuel deliverly systems other than the expensive FASS system?
Thanks in advance
Rick.
__________________
95 Dodge Ram CTD,2500,Ext. Cab,4WD,5SPD.
99 Dodge Ram CTD,3500,Box Truck,2WD,47RE Trans.
Blue Chip Fed Ex VP44 IP,Lift pump,Low press. warning light
I'm fairly new here and am hoping someone can help me with this. On my 99 Dodge 3500 I've been having a problem keeping my lift pump running. It will run for 4sec. when the key is turned on and 25sec. when cranking as it should. But when the engine is running I will either loose pressure altogether or have it drop low enough to activate the low pressure warning light. When the L/P was replaced I had the same problem. I have gauges on both sides of the filter to check differential pressures. The pressures react the same on both gauges so I don't think it's a filter problem. About 6 months ago I bypassed the L/P wiring and wired it off a switched leg in the fuse box. It worked fine until a week ago when I started getting the warning light on again when under load. I checked the gauges and found that the pressure had dropped from 15PSI to 10PSI and at times down to 5PSI. Has anyone had this problem and found a cure? I find it hard to believe that a new pump would wear out in less than a year. Any thoughts on aftermarket fuel deliverly systems other than the expensive FASS system?
Thanks in advance
Rick.
__________________
95 Dodge Ram CTD,2500,Ext. Cab,4WD,5SPD.
99 Dodge Ram CTD,3500,Box Truck,2WD,47RE Trans.
Blue Chip Fed Ex VP44 IP,Lift pump,Low press. warning light
