Ron Ananian The Car Doctor

In this episode of The Car Doctor, Ron Ananian provides a quick yet detailed rundown on car battery issues, which have been particularly common in his shop lately. He explains that even relatively young batteries (3-4 years old), especially AGM (Absorbent Glass Mat) batteries, can fail unexpectedly, even after passing a test. Ron advises listeners in colder climates to replace older batteries before they fail, rather than waiting for a problem to occur. He also highlights the strain on local battery supplies and the risk of being stranded with a dead battery. The show then transitions to a call from a listener, Mike from Michigan, with an issue involving extended crank times and a check engine light. After diagnosing the code (P1633) related to a loss of voltage to the PCM (Powertrain Control Module), Ron advises Mike to check the wiring and sensors related to the five-volt reference signal, as this could be causing the problem. He emphasizes the importance of thorough diagnosis beyond just reading codes. Lat