Quick Heater Question

[Baja42]

I recently bought a new heater core and installed it into the truck. I just realized that I don't know the correct way to hook-up the hoses. The old unit was never hooked up. I assume it matters what hoses I hook up to what inlet of the heater core. One hose comes off of the water pump, and one comes off of the engine block (I think). If anyone has any advice, or location of a installation manual, it would be greatly appreacted. thanks

 

[Flash69]

I recently bought a new heater core and installed it into the truck. I just realized that I don't know the correct way to hook-up the hoses. The old unit was never hooked up. I assume it matters what hoses I hook up to what inlet of the heater core. One hose comes off of the water pump, and one comes off of the engine block (I think). If anyone has any advice, or location of a installation manual, it would be greatly appreacted. thanks

Driver side goes to fitting on top of intake and pass side goes to waterpump. Thats the way i have mine. I dont think it really matters.

 

[HotWheels]

Driver side goes to fitting on top of intake and pass side goes to waterpump. Thats the way i have mine. I dont think it really matters.

I have mine the same way.

 

[Baja42]

Thanks, that helps a bunch

 

[Buckin74]

Intake port hose also is the hose with the heater valve inline with the core. It's installed close to the rear passenger side intake so the heater cable can attach to it.

Lower water pump hose goes directly to the heater core. The core is an "in and out" design so there's no wrong way to install hoses to it.