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EXTRA COOLANT LINE

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Old

Dec 24, 2014 | 10:25 AM

#1

cppt19

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5th Wheeling

Joined: Dec 2014

Posts: 38

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EXTRA COOLANT LINE

I have a 1999 f350 with 6.8. It was converted to run on CNG and there is a coolant line teed into the upper expansion tank line over to the high pressure CNG regulator and then to the the upper intake manifold in front of the thermostat housing. It looks like this tapping was part of the factory intake manifold. I wanna get rid of the CNG...can I just plug this with a brass plug?

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Old

Dec 24, 2014 | 01:05 PM

#2

Ltngdrvr

Lead Driver

Joined: Nov 2005

Posts: 8,440

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Yeah, just plug it off. That line is to keep ice from forming when the CNG passes through.

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