fuel problems
#1
fuel problems
ok guys bear with me as i am not a dodge guy but i am triing to figure out what the problems are with the fatherinlaws truck are. i beleave its a 90s model (grill stays attached to the hood when you open it if that helps)he had a problem with it not running right so wee changed the fuel filter then it would only stay running for a short period of til but still wasnt running right then found out then found that it was just running the fuel out of the filter and shutting off so we replaced the mech. pump on the block but it is still just only running the fuel out of the filter but not keeping fuel in the filter. th anks for any help anyone can give its a 94 with a straight 6 cummings
Last edited by stonedmason666; 01-11-2010 at 06:09 PM.
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Before you drop the tank put some fuel in a bucket and run the suction line from the LP to the bucket and see if it will pull the fuel from the bucket and run. If so take the plastic line from the tank to the frame and put some rubber line to the steel line on the frame and see if it pulls the fuel from there and runs. If not them replace the steel lines with diesel rated rubber. They are notorious for leaking and sucking air but not leaking fuel. There could be something in the tank yet but it's easier to check out the lines vs. dropping the tank. I would also just replace the lines that run from the engine to the frame rail. 3/8" supply and 5/16" return FYI. Also.....it's CUMMINS.... there is no "G" in it.
#6
Before you drop the tank put some fuel in a bucket and run the suction line from the LP to the bucket and see if it will pull the fuel from the bucket and run. If so take the plastic line from the tank to the frame and put some rubber line to the steel line on the frame and see if it pulls the fuel from there and runs. If not them replace the steel lines with diesel rated rubber. They are notorious for leaking and sucking air but not leaking fuel. There could be something in the tank yet but it's easier to check out the lines vs. dropping the tank. I would also just replace the lines that run from the engine to the frame rail. 3/8" supply and 5/16" return FYI. Also.....it's CUMMINS.... there is no "G" in it.
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---AutoMerged DoublePost---
[QUOTE=Dusterb318;469490]Before you drop the tank put some fuel in a bucket and run the suction line from the LP to the bucket and see if it will pull the fuel from the bucket and run. If so take the plastic line from the tank to the frame and put some rubber line to the steel line on the frame and see if it pulls the fuel from there and runs. If not them replace the steel lines with diesel rated rubber. They are notorious for leaking and sucking air but not leaking fuel. There could be something in the tank yet but it's easier to check out the lines vs. dropping the tank. I would also just replace the lines that run from the engine to the frame rail. 3/8" supply and 5/16" return FYI. Also.....it's CUMMINS.... there is no "G" in it.[/QUOTE
after i did the the hose to a fuel can direct to the lp it ran fine until ihooked the fuel heater back up and noticed aleak CUMMIN from it so to make sure i was just the heater i ran a temp line from supply line to the inlet on the pump and it runs fine now so i hope i dont have to mess with tank but now i need to find a fuel heater anyone know where i can find one pretty cheap
Last edited by stonedmason666; 01-13-2010 at 07:00 AM. Reason: Automerged Doublepost