My brothers 92' Blazer (4.3L CPI) stalled right after he put the headlights on. The motor was running, tranny was in drive and rolling. I checked all the fuses to see if there was a popped one, didn't see any popped ones. Right now the headlights will not turn on nor the taillights (brake lights still work), the radio and interior lights also are not working. It turns over perfectly normal but will not start, battery terminals are nice and tight. It has not started once before when it was cold out but the headlight problem seems rather odd. Is there another fuse box that I'm not seeing or maybe a fuse I missed? A little help will be greatly appreciated.

Thanks, Tony

 

Check the relays...could be a problem with the harness too but im not sure. Give shaun a call at All american he can help you more than I. 727-667-9346

 

fuseable link ???

 

The fuseable links in the front are good. It actually started working again right after my previous post but then 3days later it did it again and has since not "fixed" itself. I am thinking it is a relay aswell.

 

can you smell fuel when it is cranking???

 

Check all the wires at the + terminal and at the alternator. My 91 burban did almost exactly the same thing. One of the wires had broken off (from the alternator, if I remember correctly)...that wire fed most of the constant power stuff in the truck, like radio, lights, and fuel pump. Truck would crank, but not start, since there was no fuel pump.

Toby

 

the rubber cap was off the back of the alternator exposing the wires. I wiggled the wires a little and it started right up. Thanks alot guys for the help.