I'm in a spot. I'm an old school Mopar guy. I can help you with a prostrate or drag car. Well a friend of mines Ram left him stranded 75 miles from home. Great guy, I'm not charging him to work on his truck.
Ok I have his 04 Ram in my shop. He told me his fuel pump was out. So I checked a few fuses and relays. All seemed to be normal. I dropped the fuel tank. Pulled the fuel pump regulator assy. Ohm checked to pump. It showed a complete circuit. So I put 12 volts to it and the pump feels strong. So I'm not a parts changed. Reinstalled the tank, the truck fired right up and ran for a good 20 mins. Then slowly died. I pulled the connector on the pump and this is what I found. Cycle the key on and sometimes you get 12 volts some times no. I noticed that when it put out 12v it was only for about 3 seconds. Then dead. I'm stumped. Newer computer trucks arnt my bag. No engine codes.
So any ideas would be welcome. I'm sure it's a glitch in the electrical system. But where?
Is that normal operation? For the pump to run a few seconds then another circuit takes over?
I'm ready to put a fuel pump switch in the truck, if I can't find the problem soon.
The truck has 140,000 miles on it. Any help would be greatly appreciated. I need this thing out of my shop ASAP!!!!
But I would like to find the problem and correct it. Maybe the ASD system is acting up? Got me.
Ok I have his 04 Ram in my shop. He told me his fuel pump was out. So I checked a few fuses and relays. All seemed to be normal. I dropped the fuel tank. Pulled the fuel pump regulator assy. Ohm checked to pump. It showed a complete circuit. So I put 12 volts to it and the pump feels strong. So I'm not a parts changed. Reinstalled the tank, the truck fired right up and ran for a good 20 mins. Then slowly died. I pulled the connector on the pump and this is what I found. Cycle the key on and sometimes you get 12 volts some times no. I noticed that when it put out 12v it was only for about 3 seconds. Then dead. I'm stumped. Newer computer trucks arnt my bag. No engine codes.
So any ideas would be welcome. I'm sure it's a glitch in the electrical system. But where?
Is that normal operation? For the pump to run a few seconds then another circuit takes over?
I'm ready to put a fuel pump switch in the truck, if I can't find the problem soon.
The truck has 140,000 miles on it. Any help would be greatly appreciated. I need this thing out of my shop ASAP!!!!
But I would like to find the problem and correct it. Maybe the ASD system is acting up? Got me.