What did you do to your NNBS GMT900 Tahoe/Yukon Today?

[jared999]

Replaced the Engine Air Filter, Cabin Air filter and Throttle body position sensor. The plastic tab on the sensor that holds the electronic plug was worn down and the plug wouldn't snap into place.
Cleaned the MAF with MAF cleaner and cleaned out the air intake box.





Best way to get those metal clips onto the Throttle Body position sensor is to use large channel locks instead of trying to press them on with your fingers




I couldn't believe how dirty the cabin air filter was, wow.

 

[j91z28d1]

Does anyone know who makes the Summit Racing branded ignition coils?

Summit Racing SUM-850504B Summit Racing™ High-Output Ignition Coils | Summit Racing

Free Shipping - Summit Racing™ High-Output Ignition Coils with qualifying orders of $109. Shop Ignition Coils at Summit Racing.

www.summitracing.com

Changed plugs and wires in Deathscalade this morning. My 17 yr old was helping and a coil broke on him as he was taking a wire off. Long story short, for now I’ve replaced that coil with a Standard Ignition coil from the O’Reilly. Long term, I’m going to replace all of them so that they all match. Looking on the Summit Racing interwebz and the Summit Racing kit is $100 or more cheaper than MSD so had me curious as to made them for them.


Edit: went over to Jegs and these Mishimoto units popped up. I may give these a gander

Mishimoto MMIGLSRD0708: MMIG-LSRD-0708 Ignition Coil, Fits GM LS2/LS3/LS4/LS7/LS9 (Round), Set of 8 - JEGS

Get the Best Performance with Mishimoto MMIG-LSRD-0708 Ignition Coil, Fits GM LS2/LS3/LS4/LS7/LS9 (Round), Set of 8 MMIGLSRD0708 parts at JEGS. Shop Now at the Guaranteed Lowest Price!

www.jegs.com

I don't know about those specifically but in general aftermarket coils get a bad rap on the tuning boards, since they don't give you dwell time, and if it doesn't match the factory dwell settings it can run hot and shorten the life. aftermarket injectors come with data sheets but aftermarket coils don't but should. the general thought until you go stand along computer, just use oem packs, even if it's just used junkyard ones from the same type and model you already have. or if you can get them from a known different setup, find the stock tune file for that setup and copy the dwell into your tune, if you already have hptuners or the like.

this of course is guys that over think everything, I just watched a hour long video of a guy exploring the end of injector timeing video and you'll 95% never have an issue. but just info that I see for ya.



personally in these days of being almost impossible to get quality parts any more. I'd replace the broken one with a used low mileage one. even new from a dealership doesn't guarantee they are good anymore.

 

[07Burb]

I don't know about those specifically but in general aftermarket coils get a bad rap on the tuning boards, since they don't give you dwell time, and if it doesn't match the factory dwell settings it can run hot and shorten the life. aftermarket injectors come with data sheets but aftermarket coils don't but should. the general thought until you go stand along computer, just use oem packs, even if it's just used junkyard ones from the same type and model you already have. or if you can get them from a known different setup, find the stock tune file for that setup and copy the dwell into your tune, if you already have hptuners or the like.

this of course is guys that over think everything, I just watched a hour long video of a guy exploring the end of injector timeing video and you'll 95% never have an issue. but just info that I see for ya.



personally in these days of being almost impossible to get quality parts any more. I'd replace the broken one with a used low mileage one. even new from a dealership doesn't guarantee they are good anymore.

All very good and valid points

 

[pa31p]

Rented one of these.
Moved last kid out of the house. tows like sh@t but $20 well spent

 

[Charlie207]

Replacement AutoCAL arrived today.

 

[89Suburban]

maybe.. your rear audio does need jumping..

View attachment 441507

Looks like it is between the radio and amp for the rear speakers..

are you sure? on the gmt800's it was that way but on these trucks the pillar speakers have there own wiring
on the 800's the tweeter was in the door panel and the wire just extended up to the tweeter with a tiny filter soldered to the backside.

Jumping the speaker wiring on the green plug did the trick. All rear speakers now working.

 

[Grady_Wilson]

Rented one of these.
Moved last kid out of the house. tows like sh@t but $20 well spent

A few months ago I rented the larger version of that trailer and it towed well even though I probably was at max weight capacity for it.
But, I made sure to load it so the center of the weight would be just forward of the axle.
Looking at the tires when I got it home I wasn't confident they would last the whole 2,200 miles but they held up.