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Heater work 200 1979

Some good feedback here, especially from the grey kitty. If evidence of coolant leaks is strictly in the passenger compartment then the heater core is the prime suspect. I think you're lucky in both having a 240 known for long lived heater cores as well has having coolant residue on the booster. Odds are extremely high it's a leak where the heater hoses join the core nipples, either split or improperly clamped. Coolant jetting out from the connection can penetrate through the firewall into the passenger compartment, eventually soaking carpets and fogging the windshield. Check for leaks at the hose connections with a wrapped paper towel to help figure out where the leak may be starting.
--
Dave -still with 940's, prev 740/240/140/120 You'd think I'd have learned by now






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