Lift Pump question
#1
Lift Pump question
Ok, i am sure this question has been asked before, and i apologize i am new to the diesel life. So i just picked up a 95 Chevy K2500 with the 6.5TD engine code S. The guy before me pulled the fuel pump relay out and wired it with a switch on the dash. My question is, if i flip that switch and run the lift pump constantly while driving the truck, will it do anything to the truck as far as hurt anything, or is that ok to run it like that? I am not sure why he did this, i am being told he had prime issues with it, however i have not left the switch on all the time when i drive it. I usually start it up, then flip the switch on, once i take off i wait a min or 2, then flip the switch off. I leave it off unless it does a little miss jerk feel then i will flip it back on, it usually only does that if i am in the peddle hard, or if i am towing something. For some reasons when i first take of with it after sitting for some time, even with the switch on, it will do that little miss jerk feeling, but i just lighten up on the peddle till it smooths out. I did leave the wires in the socket for the relay and pushed the relay in with hard wired to the switch to see if i even needed to have the switch and it runs the same as it did without the relay plugged in. Thanks in advance for any help with this issue. i just dont want to break the truck or anything, want to make it right and reliable. I always worry the switch will stop working or wire will come off and break down somewhere.
#2
Ok, i am sure this question has been asked before, and i apologize i am new to the diesel life. So i just picked up a 95 Chevy K2500 with the 6.5TD engine code S. The guy before me pulled the fuel pump relay out and wired it with a switch on the dash. My question is, if i flip that switch and run the lift pump constantly while driving the truck, will it do anything to the truck as far as hurt anything, or is that ok to run it like that? I am not sure why he did this, i am being told he had prime issues with it, however i have not left the switch on all the time when i drive it. I usually start it up, then flip the switch on, once i take off i wait a min or 2, then flip the switch off. I leave it off unless it does a little miss jerk feel then i will flip it back on, it usually only does that if i am in the peddle hard, or if i am towing something. For some reasons when i first take of with it after sitting for some time, even with the switch on, it will do that little miss jerk feeling, but i just lighten up on the peddle till it smooths out. I did leave the wires in the socket for the relay and pushed the relay in with hard wired to the switch to see if i even needed to have the switch and it runs the same as it did without the relay plugged in. Thanks in advance for any help with this issue. i just dont want to break the truck or anything, want to make it right and reliable. I always worry the switch will stop working or wire will come off and break down somewhere.
#3
#4
As I said, I am totally new to the diesel world. Can you tell me how to diagnose the problem or things to check to see why it is he wired the switch to the relay socket under Hood? I don't even know what to check or why it wouldn't work right. Any help would ad greatly appreciated.