Well, I may have made a mistake. This forum advised rebuilding the old, leaking Fuel Preheater Thermostatic Valve and I got lazy and just replaced it. The brand new one leaked like a sieve. So, I thought maybe i got a bad one (highly unlikely) since all my connections and hoses were bone dry and it was leaking out of the plastic and C clamp joint, like the old one. I even replaced some of the hoses.

I sent in for a replacement. All connections are bone dry again, but it is leaking from the exact same place. What am I doing wrong? This cant be that hard! Is there too much pressure? Is something else wrong? I cannot explain this.

Any insights?

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Julio Garcia
1987 300 SDL (mine)
2006 Jeep Liberty CRD (mine/kids)
2008 Hyundai Sonata (wife)
2000 Saturn SL AKA "Gocart" (everyone)