Well a month ago i came on here cause my truck would start missing on one cylinder and the fuel pressure would sky rocket, the issue went away after i swapped lift pumps, so i left it alone, but it came back and left me stranded in Mcdermit Neveda, My truck is hard to start, but it idles just fine and will even goe down the road a ways without a hic up, but after less than a mile, you can here one cylinder start to miss and then it sounds bad, the fuel pressure raises and i have zero throttle response. If i let off the throttle the truck starts to die, but it wont accelerate at all, i can stomp the throttle and let off and stomp it again, and there is no response it just keeps running like crap. It'll even keep running some times when my foots off the throttle, like the pedal is stuck, but then it dies. After it dies i can start it right back up and it'll idle fine, sometimes though if i let it idle for a couple minutes it starts to misss, the #1 barrel on the pump actually starts sticking and you can here it clicking whent he cam hits the lifter in the pump, if i remove the injetor line you can see no fuel is coming out, but when it clicks fluel comes out, because the lifter is sticking............................any ideas as to why any of this is happening or whats causing it??? im stumped!!!

jason

 

Anyone have any ideas??? i know this is a hard question to answer, but im hoping someone has experienced it and might know something. Or maybe someone knows someone i can call and talk to? anything will help.


jason

 

Yes I've experienced it on a few trucks, back in the 90s. Haven't seen it in a few years, it only seemed to affect 94 and 95 trucks.

Driving along, everything normal, then you will start losing power and throttle response, accompanied by a strange chattering sound from the injection pump. Sometimes it will continue losing power until the engine dies completely. It may or may not restart immediately.

As a Dodge tech, we would simply replace the injection pump on warranty for this concern. In later years, we sent one or two in to the local Bosch-approved diesel shop. It wasn't a cheap repair, essentially an overhaul. I'm not aware of the specific internal failure that caused this, and I wouldn't say it was common, but you aren't the first.

 

You have a sticking plunger and barrel ( the pumping element ) for the cylinder that is missing. It is caused by a scored plunger and the scoring is caused by contaminents in the fuel. This could be either dirt or water, or some other material that does not lubricate the plunger.

 

its not just contaminents the 95-96s were known for having the plungers stick

 

Thanks fellas, thats basically what two injection shops told me also, so my next question is, i found some remand pumps from a few different sites, all differ in prices, but i was thinking i might as well upgrade to the 215 pump, anyone know a good site to buy a new/remand pump??? thanks

jason

 

Maybe send Lary a PM. This thread says he has lots of parts not listed in the DTR store.

https://www.dieseltruckresource.com/...d.php?t=233048