Southern California heat is what really kills batteries. We test the battery and the charging system, clean the connections, and replace the battery only when it needs it.
Most people think cold weather kills car batteries. In Pasadena, heat does more damage. High under-hood temperatures during summer heat waves speed up internal corrosion and evaporation, so batteries here often last only three or four years. Walnut Smog & Repair tests, maintains and replaces car batteries, and we check the rest of the charging system so a bad alternator doesn't kill your new one.
A battery can show 12.6 volts and still fail under load. We test it properly, then check alternator output and starter draw. If the real problem is a loose cable, a corroded terminal or a drain that empties the battery overnight, we'll tell you that instead of selling you a battery. Tracking down drains is part of our electrical repair work.
When replacement is the right call, we install a battery matched to your vehicle's size, terminal layout and cold cranking amp rating. Many newer vehicles with start-stop systems need AGM batteries, and some need the new battery registered with the car's computer. We handle that too.
Here's one most people don't know: disconnecting or replacing a battery resets your car's emissions readiness monitors. If you take it straight to a smog check, it can be rejected as "not ready." After battery work, drive normally for several days before testing. We'll tell you when it's ready. Read more in our post on check engine lights and smog.
Often three to four years. Heat breaks batteries down faster than cold does.
We test both. A good battery that keeps dying often points to an alternator, a cable problem or a parasitic drain.
It can. A disconnected battery resets the readiness monitors, so drive normally for several days before your smog test.
Many vehicles with start-stop or heavy electrical loads require AGM. We install the type your vehicle is designed for.
Yes. Corrosion causes hard starts and charging problems, and cleaning it is part of our battery service.
Smog checks, failed smog repair, check engine diagnostics and complete auto repair on E Walnut St. Honest answers and fair prices.