Having problems with your Chevrolet Blazer ?

My 1998 chevy blazer for some reason has a loss of power after 3-4 days. The alternator is good the battery is a week old. but some place there is a drain on the battery. No interior lights on no aftermarket stero equipment all stock. Is there a fuse that may have blew that is draining the battery or something i can check pls advise , thanks

Posted / edited by AnonymousUser on : 01-06-2020

Answers :


A blown fuse will not drain any power, rather the opposite. A parasitic draw is always caused by a short or a contact.

If the problem started after fitting the new battery, test using a differetn battery. Even a defective new battery can drain by itself because of an internal short, or because it is not fully charging.

Sometimes finding a parasitic drain may be difficult. You will need to access wiring and test them using a voltmeter.

to start you can try disconnecting factory stereo and car amp if present. Even if the in car entertainment is not an aftermarket one, that is still a common cause for parasitic drain.

Read more on how to find parasitic drains on my article here:My car is draining battery even with...

Repair Help & Product Troubleshooting for Chevrolet Blazer

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