'99 SD heater problems
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New User
Joined: Dec 2004
Posts: 2
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'99 SD heater problems
Helo, New to site. I have a '99 SD F-250 7.3d. The heater blows cold and the temp gauge is in the right range. I turned the temp control back and forth several times and it started blowing warm, but only for two to three min. then back to cold. The cooling system was serviced this year with thermo replacement. Any help would be much appreciated. Thanks J.T.
Still kicking!!
Joined: May 2003
Posts: 6,061
Likes: 6
From: Kalispell, Mt.
Welcome to the site.
Please make sure to read the forum guidelines and the READ FIRST notes in each forum you visit. If you scan the forum listings, you'll see we have topics that will match your vehicle and interests.
Please make sure to read the forum guidelines and the READ FIRST notes in each forum you visit. If you scan the forum listings, you'll see we have topics that will match your vehicle and interests.
Lead Driver
Joined: May 2003
Posts: 9,303
Likes: 48
From: Lyndonville, Vermont
The heater control is a potentiometer the heater blend door is controlled by it. The blend door has a motor control on it. Behind the glove box. Sometimes the motor control goes bad. Its not bad to get out.
Welcome to the site.
Dick
Welcome to the site.
Dick
'99 SD Heater problem
