Diesel fuel injector pump overheats

Lack of Power.....No evidence of Black smoke under a load.......Change all fuel filters and water separators and air filter before servicing a fuel pump....they rarely go bad with red fuel.....green fuel can damage older units.....the injectors would be your next step....have them checked for proper pop off pressure......Make sure air is bled from system after changing filters.....Bleed injectors by cracking fitting at each injector until fuel is present....lay a shop rag around the injector to catch fuel spills...........Don't kill the starter....let it cool during hard start conditions.....You will need a shop manual for servicing and timing the pump......

Start by checking for fuel delivery. I would disconnect the fuel line to the #1 injector (just loosen it) and see if you get fuel when cranking, There is a primer pump to get the fuel up to the filter. make sure the filter is full of fuel.

Start at the injectors and work back until you find the problem.

This is an unusual problem as injector pumps use diesel to lubricate internally and to cool the pump. For it to overheat and cause you problems means that fuel is escaping under high pressure or the operating pressure is excessive . Best discuss this with a professional diesel pump repair shop as I feel there is a serious problem in the pump.

IF you have steel lines to the injectors then crack the injector nuts and turn over until the fuel drips from the nuts. Check that you connected the stop solenoid at the pump as it will not allow start until it receives power from the ignition. Bleed any bleed screws on the pump

first fill up fuel filter with diesel . then loose injector No3 pipe
and start engine until diesel comes out .

there will be a small hand pump either on the diesel pump or on the filter. bleed the filter out first and then open the bleed screws on the pump and pump until you get straight fuel., The pump may requiring unscrewing the handle/knob first so that you can move it up and down to pump. When finished remember to re screw it back down. crack the injector lines and turn engine over until you get drips of fuel from the nuts. continue to turn over the engine while tightening the nuts and it should start before you have finished with the nuts.

anytime you change the filter in a diesel you have to bleed the air out of the fuel system. The pump won't auto bleed the fuel system for you. every place in the fuel system that has a flare type connection needs to be bleed, start at the connection closest to the tank, loosen the connection and then crank the engine until you see diesel fuel drips from that connection. Tighten the connection while the engine is still cranking. Move to the next connection that is going toward the engine. Continue on in that manner toward the engine until you reach the injector pump/injector. Once you reach the injector pump be VERY aware that the fuel is at VERY high pressure. Do NOT put your body parts in the stream of high pressure diesel fuel. It could kill or injure you! Once you bleed all the way to the injector pump/ injector, the truck SHOULD start. Do not bleed after the injector pump because of the pressure involved, it is WAY too dangerous.

Good luck!

Diesel should not hurt your car as long as you did not put to much in your tank. I would recommend that you buy a good bottle of octane booster dump it in your tank then fill it up with a high octane full like 91 octane. That should make up for the difference. Your car may smoke a little bit until all of the diesel is out of your system but it should be fine after that. I hope this helps and if you have any other questions please feel free to ask.

may have a problem with the injectors let it idle till it gets hot and see if it dies if so get the injectors checked

just bump the ignition without starting it let sit for 20 seconds oruntill you hear lift pump shut off then shut off ignition and repeat do it 2 or 3 times should start then cummins is a self priming system has been for years even in semi trucks