ArdWrknTrk Posted January 27 Share Posted January 27 Interesting story, a Ford dealership mechanic had this truck that kept going through heater cores, and they couldn't figure out why.... My truck kept going through heater cores (10 in all!) and I got to stay close to my friend Rick Piper who inherited Portchester Auto Radiator from his father. Turns out I had a tiny crack between an exhaust port and the spark plug. It would only open up if I was romping on it and had to back off suddenly. I got to where I could change it and have the coolant system buttoned up in 15 minutes. This was back in the day, when Modine still made brass heater cores and Rick would pressure test every one before it left his shop. Link to comment Share on other sites More sharing options...
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