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#1
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420 sel heater problem
The heater only putsout some heat on low speed,but cold air if I change to high speed or automatic.Also when i turn heater off,rpm jumps to 1200??
I also think,I have vacuum problems,for example power door lock not functionnning,fuel problem that could be connected to vacum.How do I check the complete vacum system for leaks,before I check individual units? |
#2
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Low heat could be plugged monovalve, use Search for a lot of threads on monovalve repair.
While searching, look for Mity Vac, a vacuum gauge and pump, indispensible for vacuum troubleshooting work. Best Regards, Jim |
#3
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Heater problem about to be fixed
For all of you having similar problems,I did a search on monovalve and found a post by Billybob.That post as complete directions and picture and really helpful.Thanks to that post,I will be repairing my monovalve this week-end,which doesn't seem hard at all,and should have my lack of heat taking care off.
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