Aldofashow Posted April 4, 2013 Report Share Posted April 4, 2013 Im not sure why everyone seems to be afraid of puting the battery cable together to clear the PCM???? It wont harm your truck at all....I have done it dozens of times over the years of working on cars and have fixed several cars by doing this. BTW, I was told to do this by a GM area feild technician. I think they have a pretty good idea about what they are doing....its funny you say that cause the capacitor that I bought for my amp comes with a lite bulb to discharge that I wonder if it would work for that lite gos out temp memory gone Quote Link to comment Share on other sites More sharing options...
70chevy03ss Posted April 4, 2013 Report Share Posted April 4, 2013 Don't forget to add a fuel filter to that tune up I bet that thing is clogged!!! Quote Link to comment Share on other sites More sharing options...
JC03SS Posted April 5, 2013 Report Share Posted April 5, 2013 Im not sure why everyone seems to be afraid of puting the battery cable together to clear the PCM???? It wont harm your truck at all....I have done it dozens of times over the years of working on cars and have fixed several cars by doing this. BTW, I was told to do this by a GM area feild technician. I think they have a pretty good idea about what they are doing.... I've done it also. It didn't hurt anything. Quote Link to comment Share on other sites More sharing options...
Blown 346 Posted April 5, 2013 Report Share Posted April 5, 2013 I have heard of it burning up the computer if you do it right after the positive cable is removed. Its best to wait 30 minutes to make sure the system has equalized. Doing it right away can cause an issue with overloading the computer. Quote Link to comment Share on other sites More sharing options...
D1SCSS Posted April 5, 2013 Report Share Posted April 5, 2013 I have heard of it burning up the computer if you do it right after the positive cable is removed. Its best to wait 30 minutes to make sure the system has equalized. Doing it right away can cause an issue with overloading the computer. This is not true at all.You don't have to wait at all. If you have the battery completely disconnected you won't have any problems. If the battery is not disconnected, you will cause a short just as if you put a wrench between the to battery terminals. Quote Link to comment Share on other sites More sharing options...
onebadmax Posted April 5, 2013 Report Share Posted April 5, 2013 Im not sure why everyone seems to be afraid of puting the battery cable together to clear the PCM???? It wont harm your truck at all....I have done it dozens of times over the years of working on cars and have fixed several cars by doing this. BTW, I was told to do this by a GM area feild technician. I think they have a pretty good idea about what they are doing.... Because most people don't understand electronics or electricity in general. They think positive and negative can never touch or cross paths. It's actually quite funny. Try showing somebody a 24v system using two 12v batteries, LOL, watch their head explode when the see positive going to negative and vice versa. Quote Link to comment Share on other sites More sharing options...
canadianVRss Posted April 5, 2013 Report Share Posted April 5, 2013 Because most people don't understand electronics or electricity in general. They think positive and negative can never touch or cross paths. It's actually quite funny. Try showing somebody a 24v system using two 12v batteries, LOL, watch their head explode when the see positive going to negative and vice versa. lmao, soooo true haha Quote Link to comment Share on other sites More sharing options...
chpspecial Posted April 6, 2013 Report Share Posted April 6, 2013 I also second the touching of the two battery leads AFTER they have been disconnected. Like said before, this ensures the capacitors fully discharge Sent from my ADR6400L using Tapatalk 2 Quote Link to comment Share on other sites More sharing options...
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