85 300d Heater troubleshooting help
Hello everyone, I have an 85 300d that doesn't like to blow hot air anymore especially at high speeds. I am wondering how I should go about troubleshooting this problem. I think It could be a clogged up heater core or a valve problem. Should I try to bypass the valves before I try to flush?
thanks
Last edited by Alexreed300d; 02-11-2021 at 05:03 PM.
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