Rick's Free Auto Repair Advice

Posts Tagged: is it the battery or alternator

Is it the battery or the alternator — Step by step guide to diagnosing the problem

How to diagnose a battery or alternator problem DIYers are often confused about how to determine whether it’s a battery or alternator problem To diagnose whether the problem is the battery or alternator you always have to start by checking the battery. Step 1: Eliminate resistance so you can get good test results High resistance at the battery terminals, alternator terminals and ground terminals can really screw up your diagnosis. Even if your battery terminals look clean, remove the terminals and clean the terminals and posts. Then clean the connections … Read More


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