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I've ordered some roof clearance lights for my truck but need the harness to power them. GM Parts Direct said that the part number is 15143671 with a call out number of 15. Is this the right harness/part number? I really don't want to order the wrong thing. Here is a pic of what it looks like

I did a search before posting and it turned up nothing similar. I have a strange vibration coming from seems to be the rear of the engine on the drivers side. The vibration can be heard and felt (very slightly) the most at cold startup and when the air conditioning is on. When the engine is...

Kind of a narrow request but I'm looking to get new rims/tires and cant imagine them on my truck. Trying to get an idea of what it would look like. Anyone fit this? Thanks

So shortly after installing a PPE dual fueler, the belt developed a squeak and slowly got worse. Now, when cold, the belt (im assuming its the belt) will squeak at idle and all throughout the rpm range. When she heats up, it'll only squeak at 2100-2400 rpms which was cruising speed while hauling...

Alright it started this afternoon, I went to check a bridge we are building. When I got there I put it in park and let it cool down a bit. I noticed a slight unusual vibration on the driverside but wrote it off to the tractor working there. when I got back into the truck I noticed it again, I...

So I went to go get an oil change on my dad's truck today near Canutillo, TX (As you can imagine, this is close to the boarder). So, while waiting I noticed a drum of Royal Purple and asked the guy there where he ordered it from. He told me from corporate, then he said that it was a special...

Trying to tune a 99 Escalade with the 5.7. When I try to flash, it get through the 4 steps of initializing the PCM then stops at setp 1 of 4 when it tries to initailize the bootloader. Then it tells me that it failed because of no response. Whats the problem? Do i have to pull any fuses...

Not sure where to post this.. Alright guys I've got a race tomorrow that has been advertised all over town for 3 months. This is the big one. Few days ago I dropped off the truck to get a Dual CP3, Fass 150Gph(with filters) lift pump, and Labonte water/meth kit, and HID 6000K on Hi, lows, and...

Just finished installing another CP3 from PPE along with a FASS 150 GPH lift pump. And with that I'm getting low fuel rail pressure. I logged and it was calling for 5000 psi and it only delivered 2500psi. Double checked pluming and wiring. What would be the cause of this? Thanks

So I cant find my Licensing Sheet for my EFI live....I installed the new update and it set me back to demo mode and I need to put the key and serial number in to unlock it. Is there anyway to get that info from the V2? or any other way to do it? Thanks

I'm having trouble trying to get some things to register on the dashboard. I would like to display RWHP, RWTQ, and g-force. I also want to read boost, but it reads around 13 psi at idle, im guessing that ambient pressure. I did a search on this but most of them discuss accuracy but not how to...

What do I need to do to get the tires to break loose off the line? I realize power is limited by upgrades to the engine (CP3, Turbo, etc..). But I want to get as close to breaking them loose off the line as I can with just a tune. Any ideas? Thanks

Had a couple questions bout the block heater before the winter rolls in. Went back and did some searches. Found answers to some questions I had but didn't all of them. I drive 23 miles from work to home and back. When I get home the engine is warm and the temps are not freezing. Is it safe to...

For those of you who have pyros, what has been the highest EGTs you have seen?

Where else would you find a Case in a university parking lot?

Anyone using some slotted/vented brakes? How do you like them? thanks