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Old November 4th, 2019, 12:57
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PacificEd PacificEd is offline
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Join Date: Jun 2007
Location: Middle Tennessee
Posts: 8,603
Re: Weekend is over...what did you get done?

Originally Posted by techno1154 View Post
I do not know anything about ZJ's but,...`does it have one of those vacuum control valves that need to open to allow the hot water to pass?
I didn't see one. The lines come straight off the water pump and thermostat housing and go straight to the heater core lines. I was asked the same thing from another Jeep guy.

I need to get home and look at my Chrysler repair manual and just see what could be causing this. I pushed water both directions through the core before swapping out the radiator so I know it isn't plugged. Flow was good and consistent.
Former SEC Chapter President: 2009-2012
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