Lower radiator hose cold

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Sep 30, 2020 | 10:23 PM

alod3794

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Lower radiator hose cold

Anyone have an idea why my lower radiator hose is cold, even when my truck gets to normal operating temperature which is the “N” on Normal?

The top hose is hot
’87 6.9

thank you

Sep 30, 2020 | 11:48 PM

DarkOverCast

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Joined: May 2015

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Quote:

Originally Posted by alod3794

Anyone have an idea why my lower radiator hose is cold, even when my truck gets to normal operating temperature which is the “N” on Normal?

The top hose is hot
’87 6.9

thank you

Means either your radiator is doing a great job, or the system has a restriction. If it's not over heating I wouldn't worry about it.

What's the ambient temperature outside?

Oct 1, 2020 | 05:44 AM

alod3794

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Joined: Aug 2020

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Quote:

Originally Posted by DarkOverCast

Means either your radiator is doing a great job, or the system has a restriction. If it's not over heating I wouldn't worry about it.

What's the ambient temperature outside?

It was probably 55-60 degrees outside

Oct 1, 2020 | 10:39 AM

Perk85F250

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Joined: Jun 2013

Posts: 170

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Borrow someone's infrared thermometer and check temperature at different locations, hoses, block, radiator etc. Didn't think my engine was getting warm enough, it was the gauge sender.