Thread: Plenty of heat...little heat....slow down...heat comes back
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  #9  
Old 01-13-2003, 10:47 AM
Tim51 Tim51 is offline
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Join Date: Jul 2002
Location: Lake Stevens, WA
Posts: 27
Another vote for the monovalve.
My 84 300D had the same symptoms. Lots of heat at idle, but not heat above 40 mph. It took me about 10 minutes to install the monovalve repair unit and the problem was solved. Here is a site that explains it pretty well:
http://www.kite.com/kite/w126/

Tim
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