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no start after chaing lift pump
- Thread starter DEERE3594
- Start date
merlin5577
Diesel > Gasoline
Crack some injector lines and get to cranking. Air in the lines on a 6.2 is a royal pain.
randomid25
Rattle-Trap Cap'n
x2
Mad Maxx
See, what had happened was...
Yea, I'm thinking you got some Air in there. Check to make sure you're getting Power at the Pump as well.
Missy Good Wench
Wild Blonde from Cloud Mt
The 83 is a mechanical lift pump.
The only way to do this easy is like this.
Unplug the large red wire from the IP to stop the fuel solenoid from actuating.
Open the bleed screw on the filter and crank the engine until air free fuel comes out.
Close the bleeder and plug the power back to the IP.
Glow the thing and crank it. If you have cranked it otherwise you have air in the pump and the injectors.
Not a biggy but will take a little cranking to get it up and going. Normally these will prime right up and dont need a lot of fussing.
Let us know.
MGW
The only way to do this easy is like this.
Unplug the large red wire from the IP to stop the fuel solenoid from actuating.
Open the bleed screw on the filter and crank the engine until air free fuel comes out.
Close the bleeder and plug the power back to the IP.
Glow the thing and crank it. If you have cranked it otherwise you have air in the pump and the injectors.
Not a biggy but will take a little cranking to get it up and going. Normally these will prime right up and dont need a lot of fussing.
Let us know.
MGW
iamdave0887
Here Comes Chaos.....
I had issues with my mech lift pump leaking fuel out of the weep hole and letting air in, so the IP would loose it's prime.
It was a pain to spin the motor over until the fuel got back to the IP. The batteries usually died before the truck would start and stay running. I went with an electric LP from a 6.5 and the proper O-ring tubing connectors on each end, and put it where the mech lift pump used to be. Truck fires up much better now than it did with the mech lift pump.
It's a good upgrade.
I have mine wired into the fuel shut off circuit so when the key is on the LP has power. I know it's probably not the best idea having the LP wired to key power, but it's temporary for now. Once it gets on the road i'll work up a setup like the early 6.5s with the OPS to power it via a relay.
It was a pain to spin the motor over until the fuel got back to the IP. The batteries usually died before the truck would start and stay running. I went with an electric LP from a 6.5 and the proper O-ring tubing connectors on each end, and put it where the mech lift pump used to be. Truck fires up much better now than it did with the mech lift pump.
It's a good upgrade.
I have mine wired into the fuel shut off circuit so when the key is on the LP has power. I know it's probably not the best idea having the LP wired to key power, but it's temporary for now. Once it gets on the road i'll work up a setup like the early 6.5s with the OPS to power it via a relay.
just a number
Active Member
:iagree: