8 UR HMI Posted December 9, 2009 Report Share Posted December 9, 2009 ok well new alternator was NOT the problem. truck died again when i went to my friends funeral. jumped it today and it drove fine. i literally checked EVERY single fuse, wire, relay. etc... not 1 application is used from a 12v constant source. all of my gauges, amp, nitrous switches, radar detector etc.... are coming off ignition. i cant figure it out and im getting angry. i need to find it out cause i started my truck sunday evening and then my gf tried to start it for me monday and NOTHING!!!! Quote Link to comment Share on other sites More sharing options...
misterp Posted December 9, 2009 Report Share Posted December 9, 2009 On my truck the headlight switch started acting funny, it was 'leaking' current through the parking lamp circuit. In my case a neighbor actually heard the relay buzzing underhood, and we pulled it, swapping relays did not help, the issue was internal inside the headlight switch *I think* but it has not malfunctioned since. There are several things that can be powered on even though the key has been removed - the lighting is one, the BCM is another (it's always monitoring the doors, radio, etc). About the only way you can diagnose something like this is to put a ampmeter between the positive battery cable and battery terminal, and when you see the amperage you know something in the truck is pulling power and you just start pulling fuses until the power drain stops, at least you will have tracked down what circuit is the offender and can lookup what the suspect components are. Total PITA I know. Mr. P. Quote Link to comment Share on other sites More sharing options...
12'SROCK Posted December 9, 2009 Report Share Posted December 9, 2009 (edited) Maybe its linked to only the 2003 black SS trucks.... Edited December 9, 2009 by WICKEDOWESIX (see edit history) Quote Link to comment Share on other sites More sharing options...
misterp Posted December 9, 2009 Report Share Posted December 9, 2009 Maybe its linked to only the 2003 black SS trucks.... Yeah that would be about our luck Quote Link to comment Share on other sites More sharing options...
SSplaytoy Posted December 9, 2009 Report Share Posted December 9, 2009 Yeah that would be about our luck Gonna have to agree Quote Link to comment Share on other sites More sharing options...
Fireman31 Posted December 9, 2009 Report Share Posted December 9, 2009 About the only way you can diagnose something like this is to put a ampmeter between the positive battery cable and battery terminal, and when you see the amperage you know something in the truck is pulling power and you just start pulling fuses until the power drain stops, at least you will have tracked down what circuit is the offender and can lookup what the suspect components are. Total PITA I know. Mr. P. The only real way to know is to trace where the draw is coming from.....we had a van at work recently with this problem, turned out to be a faulty AM/FM stereo believe it or not..... Quote Link to comment Share on other sites More sharing options...
malibutwins Posted December 9, 2009 Report Share Posted December 9, 2009 There is a couple of ways to check for draws. One is to dissconect the positive cable and connect a test light in between the positive terminal and the hot cable. if it lights up or glows dim then start pulling fuses to see what circut is drawing current. You can also use a amp meter for this also. Quote Link to comment Share on other sites More sharing options...
8 UR HMI Posted December 9, 2009 Author Report Share Posted December 9, 2009 i dont have anymore time with finals this week. im going up to work on the truck at steves house the weekend of the 18th. maybe we can do it there steve??? Quote Link to comment Share on other sites More sharing options...
misterp Posted December 9, 2009 Report Share Posted December 9, 2009 i dont have anymore time with finals this week. im going up to work on the truck at steves house the weekend of the 18th. maybe we can do it there steve??? SURE - hehehe "Here, hold this wire..." Quote Link to comment Share on other sites More sharing options...
70chevy03ss Posted December 9, 2009 Report Share Posted December 9, 2009 when you shut your truck off do ALL of the interior lights shut off. My fan switch lites would stay on along with my steering control switches.. Check that out. My battery died and i got a new one that one died and I noticed that my lights would stay on. Cost me $300 or so to fix. Cause I didn't have the time to fix it. If I new that I would have just gotten a new control box. Quote Link to comment Share on other sites More sharing options...
JSTAL Posted December 9, 2009 Report Share Posted December 9, 2009 bob you ss has a sensor in the pcm that detects homosexuality and shuts down the truck when you get in Quote Link to comment Share on other sites More sharing options...
misterp Posted December 9, 2009 Report Share Posted December 9, 2009 bob you ss has a sensor in the pcm that detects homosexuality and shuts down the truck when you get in Hm. Apparently it's calibrated above 43%.... Quote Link to comment Share on other sites More sharing options...
desrtrat Posted December 10, 2009 Report Share Posted December 10, 2009 if i remember, GM was having issues with batteries going dead. been ongoing since 02 and up. posted on another site about a year or so ago, someone was having the same thing as Aspen was having with her SS. what they found was the BCM was the issue. they said to reflash it and should take care of the draining if the battery. only thing i can also remember about it was something was not switching off when it was supposed to due to a bad programing. hope this will help, there may be a TSB somewhere.. good luck Quote Link to comment Share on other sites More sharing options...
8 UR HMI Posted December 10, 2009 Author Report Share Posted December 10, 2009 bob you ss has a sensor in the pcm that detects homosexuality and shuts down the truck when you get in that why ur truck has issues?? hahahah jk. im REALLY excited to see that big boy running again and break a nice 10 sec 1/4 Quote Link to comment Share on other sites More sharing options...
8 UR HMI Posted December 11, 2009 Author Report Share Posted December 11, 2009 u know i was thinkin, my friend took out the relay for the DRLs under the hood to disable my drls, could that cause the relay to stay open and drain my batt? Quote Link to comment Share on other sites More sharing options...
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