Dear Car Talk: I have a “no heat” problem on my ‘99 Pontiac Grand Prix SE 3.9 liter. It runs fine with no overheating (yet). I suspect a plugged heater core and want to bypass it for the rest of the ...

K-series swaps often face unique cooling challenges due to custom hose routing, heater core deletions, and aftermarket thermostat housings. Without a proper bypass circuit, coolant may not circulate ...

Both evaporators and heater cores have a dramatic affect on the comfort level inside a Corvette. Another thing they have in common is that their replacement is a job many owners dread. Fortunately, ...

Some Chevy Colorado and Chevy Silverado owners with the TurboMax 2.7L four-cylinder gasoline engine under the hood may notice reduced heater performance. This issue could be the result of a twisted ...

My 2008 Jeep JK Wrangler has always had good heat and A/C and is, in my opinion, such an improvement over the older Jeeps. But I am having a problem with the heat this year. My A/C was ice-cold this ...