heat hand rising and falling


Old 04-15-07, 12:36 PM
Thread Starter
Join Date: Apr 2007
Posts: 1
Unhappy heat hand rising and falling

i have a gmc truck and the heat dial keeps going from 150 deg. to 210 deg.. what is causing this? I thought maybe the a sticking thermostat?????.please help
Sponsored Links
Old 04-15-07, 06:23 PM
Forum Topic Moderator
Join Date: Mar 2005
Location: USA
Posts: 44,340
Welcome to the diy forums!

It might be the thermostat, it also could be faulty wiring or gauge. 150` is awfully cold for running conditions.
Old 04-23-07, 06:58 PM
Join Date: Jan 2007
Posts: 43
heat gauge

what year is your truck what engine does it have?

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Thread Tools
Search this Thread
Display Modes