I had a 2012 Silverado in here with a plugged heater core. A plugged heater core is a direct result of cooling system neglect and a 2012 doesn't have a high bar to meet since the recommended service interval is 150,000 miles. At 312,000 miles this one had missed 2 service intervals and while I did gain decent temps by flushing the core, it needs a full replacement and more than one full system flush to remove as much of that contaminant as possible. Much better would have been to never let it get in that condition.
Similar situation with the 1999 F150 this morning. I did gain 32 degrees of heat by flushing, now 132 vs 100 but it needs the core replaced and system cleaned. Coolant should be replaced at 30,000 mile intervals on this one.
No comments:
Post a Comment