The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - Both headlights burned out tonight... Why?

Green Monster · 09-17-2008, 04:20 PM

It only took 11 months but I finally put this issue to rest. I took my blazer to a automotive electrical repair shop: Keystone Auto Electrical.

The problem was a burned out voltage regulator and a bad alternator. I had replaced the voltage regulator prior to bringing it to Keystone Auto Electrical but it was apparently the incorrect kind and had already burned up. I had installed an electronic voltage regulator when the correct part is a mechanical voltage regulator. I did not know there was difference. The Blazer runs great and I am happy to have it back on the road. Thanks for your help guys.

09-17-2008, 04:20 PM	#108
Green Monster Registered User Join Date: Mar 2006 Location: Malvern, PA Posts: 951	Re: Both headlights burned out tonight... Why? It only took 11 months but I finally put this issue to rest. I took my blazer to a automotive electrical repair shop: Keystone Auto Electrical. The problem was a burned out voltage regulator and a bad alternator. I had replaced the voltage regulator prior to bringing it to Keystone Auto Electrical but it was apparently the incorrect kind and had already burned up. I had installed an electronic voltage regulator when the correct part is a mechanical voltage regulator. I did not know there was difference. The Blazer runs great and I am happy to have it back on the road. Thanks for your help guys. __________________ Photo Gallery of 1972 K/5 Blazer CST Last edited by Green Monster; 09-17-2008 at 04:21 PM.