Charging/possible short problems -help!

[hecksterz]

Can someone help me with a 89 blaz that is acting as if the alt. is dead and killing the battery. The truck buzzes when the dash lights are on and the gas-oil-and temp are dead day or night. It just happened to this one and is very much like a problem with my last blazer but my gas and oil worked during the daylight hours in that truck. I`ve allready replaced the alt. and the battery but she still does it-anyone have any ideas or has seen this before? Plus does anyone have a page for 4wd actuator replacement/testing the could suggest. Thanks Hecksterz

[mrrob]

Does it only happen when you put the headlight switch on?, or does it happen all the time (the buzzing)?.


Mr.Rob

[hecksterz]

Only when you put the parking light switch on which eluminates the dash-the headlight switch by itself does not set it off-however the guages are out now constant.

[Mikado14]

Have you checked the fuse for the guages?

Have you checked your grounds under the dash?

[hecksterz]

Quirkey -I just posted last night about troubling short problems -on my second blazer this one a 89 -last was a 86. Both developed short problems -the old one went to the scrap yard with it`s problem as I never could figure it out. It would jump the guages everywhere and pop the dome light -finally had to run at night with the dimmer off and no guages but wouldn`t drain the battery -weird. The 89 I just figured out today-it buzzed as battery wasn`t charging and killed the gas/oil/temp guages and blew the dome. Turns out the stock radio is somehow shorted and when the radio fuse is removed everything returns to normal-to bad I spent 100$ on a new alt before I figured it out. Thanks for the help guys!!