Heater issue

collinb · Postby **collinb** » Thu Dec 19, 2019 9:09 am

The heater works after about 3 miles of driving.
But after another mile or two the heat goes way.

Also, when idling there is no heat. Just cool air.

Notes:
I get fan air movement
Engine temp is normal.

Where should I begin diagnosing this?

underworld1001 · Postby **underworld1001** » Thu Dec 19, 2019 11:37 am

"Burp the system"

https://www.youtube.com/watch?v=REjYjiO ... e=emb_logo

With that said, it's been about 2 years and I still run into this issue occasionally. Going to try it the way the guy did it in the video above and see if I have better luck. Only difference is I'll raise the front of the vehicle while doing so.

collinb · Postby **collinb** » Thu Dec 19, 2019 12:12 pm

underworld1001 wrote:"Burp the system"

https://www.youtube.com/watch?v=REjYjiO ... e=emb_logo

With that said, it's been about 2 years and I still run into this issue occasionally. Going to try it the way the guy did it in the video above and see if I have better luck. Only difference is I'll raise the front of the vehicle while doing so.

Tx.
Looks like my weekend is set.

Swerve · Postby **Swerve** » Sat Dec 28, 2019 12:57 am

So burping it gets the air out. But how does the air get in there to begin with? Another post here said it turned out it was a rad cap with a worn o ring that was letting air in. Changed out the cap and no more need to periodically burp it.

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Heater issue

Heater issue

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