Vacuum pump runs constantly

[Zmann]

grab a golf tee or a proper size plug and pull the connector at the ESOF solenoid on the pass fender near the battery and plug the line coming from the vacuum canister this will bypass the solenoid and all the ESOF side of the system

Yeah make sure it is plugged in. I would check both ends. Not really sure what it does. I think it control hot radiator water thru the heater core.

correct it blocks the flow of hot coolant to the heater core when Max A/C is selected

 

[Mdub707]

Ok I will try that... right after I get the truck running. Just had a random no start in the driveway yesterday and can't get it going now. Awesome.

 

[Zmann]

damn

 

[Mdub707]

My thoughts exactly. Hopefully nothing too difficult. Maybe I'll start another thread here just for some extra insight.

 

[Zmann]

is it cranking?

 

[Mdub707]

Yup, I started a new thread bud... no start out of the blue.