In case anyone's interested in doing the Big 3, but doesn't know where to purchase a Big 3 Kit for an I6 TV (or doesn't have the skill/time/resources to make their own), check out this thread in the JeTTTstream vendor forum.
Wassup guys.. Finally decide to order my highput alternator from db electrical. It's a 250 amps. My question is if I upgrade would my factory wires for the truck be affected and can I just run a direct wire from the alternator to my isolator then to my battery's in the back ( 2 2400 kinetiks). From reading the posts I see that some of you did the big 3 without even upgrading the alternator.
Thanks for the reply. I took apart my old wiring yesterday and found that the reason why I was getting alot of dimming all of a sudden is because my wire at the terminal of the isolator was burnt so it wasnt getting good contact. I think I will run the 0 gauge wen my alternator comes. Do you think the stinger isolator and relay 200amps will be compatAble with my 250 ho alternator?
Yes overkill is awesome.. I did Jetttstreams big 3 +2 option.. where not only is it the big 3 but also the passanger side head on the LS2 and the driver side coil pack and its drastically changed the SS.. I don't see a voltage drop lower then 13.7V on my voltmeter where as before I was getting as low as 12.4V..
After an enormous shop repair bill that came back to be caused by my incorrect Big 3 upgrade, I wanted to post what I did wrong for any one else out there that may be confused.
Stock, there are two cables attached to the negative on the battery.
One cable goes directly to the chassis (shock tower), and THEN on to the engine block. The other is a small wire grounded to the body just to the right of the battery.
This small cable is NOT part of the Big 3, leave it alone while doing the upgrade.
Remove the cable that goes to the engine block and replace it with 2 cables, one to the engine block, and the other to the chassis.
The third part of the big 3 is the positive cable from battery to alternator.
Just wanted to clarify for anyone else looking to do the upgrade, hopefully you dont make the same expensive mistake I did.
Its a very short wire that goes from Batt (-) directly to the frame/body. To simplify his problem, he was getting low fuel pump voltage, causing loss of fuel pressure, because he removed this short ground wire.
So yes, if you only add wiring and don't rip any out, you won't get the same problem. I did the big 3 yesterday, and beefing up this small wire is called the "Plus 2". I did not buy enough ring terminals yesterday, so am going to do this simple 'Plus 2' today when I get them. That and the Batt (-) to Alt frame, which is not part of the Big 3.
For all having a hard time getting to the engine ground on driver side, which is almost unreachable from the top, I took off the drivers side tire and the bolt was right there! Same as the chassis ground on the tower. Not sure how else to get to that ground. I got only a few scraped knuckles
07' Chevy Trailblazer. Mine keeps falling off after I bought a new one from eBay. I broke the other one trying to replace a speaker. Checked the door panel to make sure it's on all the way so I know that's not the issue.
Thinking about modifying it in a way that the prongs are screws instead of...
I see a few people have done this, but there have been no pics that I can find of the harnesses and I haven't pulled my headliner down yet. Can you add the console with Homelink and lights to a 06 TB LS that only has OnStar and Overhead lights (no overhead console?)
Ok guys, I made a rookie mistake, was tired, almost done and was not thinking and now have a problem. I just completely rebuilt my 04 trailblazer onto an 06 frame and chasis. Engine, transmission, suspension, doors, rear hatch, hood, seats, carpet and radio (it's my daily driver for my family...
Hello everybody, 1st post and I'm probably the biggest novice when it come to cars.
I have been having a very strange problem with my 2002 GMC Envoy.I don't have the Bose speakers, so, as far as I know, there is no external amp. I bought this car used, and I have noticed that there is a wire...
Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum
A forum community dedicated to Chevy Trailblazer and GMC Envoy owners and enthusiasts. Come join the discussion about performance, modifications, troubleshooting, towing capacity, maintenance, and more!