Bypass heater core
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Joined: Jan 2012
Posts: 65
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From: West Texas
Car: 1990 IROC
Engine: 305
Transmission: T5
Axle/Gears: 3.42
Bypass heater core
I'm removing my heater core and A/C. My question is... How do I route the hoses now. I know the one on the radiator needs to be removed and capped off at the radiator. Do I route the other hoses off the water pump to the manifold?
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Joined: Nov 2014
Posts: 8
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From: Levittown NY
Car: 1984 Trans Am
Engine: 350ci
Transmission: T-5
Re: Bypass heater core
GOTO THE AUTO STORE AND GET A BYPASS HOSE THAT HAS A 5/8 AND A 3/4 END THEN REMOVE HEATER HOSES TO CORE . SHOULD BE GOOD TO GO .
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Joined: Feb 2013
Posts: 70
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Re: Bypass heater core
If it's TPI, then all you have to do is remove the U-shaped hose between the intake manifold and the throttle body; cap the nipple on the manifold fitting(although removing the fitting and plugging the hole with an appropriately-threaded pipe plug is better, safer and more permanant); then remove the hose to the radiator(and all other associated heater hoses) and cap the nipple on the radiator. All hoses gone, and you will also have performed a throttle body bypass at the same time.
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