Heater hose routing

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by cat 03, Aug 7, 2023.

  1. cat 03

    cat 03 Bobtail Member

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    Mar 22, 2013
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    I have a 1997 pete with 3406e can I use either port on the back of the water pump for heater hose position. Can I move the hose outlet from the rear of the block to one of the pipe plugs on the oil cooler. Which way does it flow out of waterpump to firewall then back into the block or block to firewall then into the ports on rear of water pump
     
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  3. BoxCarKidd

    BoxCarKidd Road Train Member

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    Aug 26, 2014
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    Question 1: Yes
    Question 2: No
    Question 3: From the block or top of head. To the water cut off valve, through the heater core and back to the water pump.
     
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