What did you do to your NBS GMT800 Tahoe/Yukon Today?

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HiHoeSilver

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Hey brother how hard was it to put those lights in the rack and do you remember where you got the lights that fit the holes?

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Not hard. I've yet to do a write up because, well....they're not done. I have a bunch of pics of the install I could get you. I got the lights from @Bigbeardenali1992 and a lens was broken, so I disassembled them and put the guts into the rack. They worked out really well. They are/were winjet lights. winjet wj30-0064-09
 

00'BlueSteel

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Just went to eat lunch in my truck like everyday and when I started it up to turn the ac on it threw misfire code P0303, P0327, P0300. Hoping fixing the P0303 will fix them all.....
 

Bombsquad85

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You’re sleeping and typing on tyf? Wow that’s talent right there...;)

Haha yea. Also checked those connections clean and damage free. I'm at a complete loss as to where all this coolant went....

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Tonyrodz

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Never smelled it oil is clean no smoke from exhaust. Nothing. The truck runs, smells and feels great
I had the same issue with my 4.8. I think when the mileage gets up there it just might be going past the head gasket very little and it's just burning it. I think to a certain degree it's normal. What's your mileage? When I swapped mine out, it was around 274,000. Motor never gave me any hint of a problem. Every other month I'd have to refill my overflow, as it was almost empty. Now I don't have that issue at all.
 

00'BlueSteel

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Going in on the P0303 error in the rain, gotta love a daily!

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Here is Speak plug 3 after driving 30miles with the misfire.
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00'BlueSteel

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So what do you think it could be? Burning a little oil?

Most of that build up is from driving 30 miles with no spark. Also the gap was around .075.

Put a new AC Delco plug in gapped at .06 and codes are gone and it’s running normal again. Going to swap all new plugs in tomorrow night this will get me to work and back.

image.jpg

Might pull a scan tomorrow and send to BBP for review.
 

Tonyrodz

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Most of that build up is from driving 30 miles with no spark. Also the gap was around .075.

Put a new AC Delco plug in gapped at .06 and codes are gone and it’s running normal again. Going to swap all new plugs in tomorrow night this will get me to work and back.

View attachment 204916

Might pull a scan tomorrow and send to BBP for review.
So other then the spark plug, what was the cause of your misfire?
 

00'BlueSteel

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So other then the spark plug, what was the cause of your misfire?

At this point I really don’t know. Spark plug might have just taken a crap. I checked the oil and it’s normal, level is right where it was last time I checked it. Doesn’t seem to be burning much oil if any and since it wasn’t high and didn’t have gas in the oil I know no gas washed by the rings while driving it with the misfire. That rules out blow by issues. Plug wire was normal, but just to make sure after the code was gone I swapped the wire from cyclinder 7 to 3 and 3 to 7. If the misfire shows up on 7 tomorrow then I know it’s the plug wire.
 

brian.roberts.1293

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Well changed plugs and wires today. My plug wires were I guess melted to the ends of the plugs. I had to rip the boots off piece by piece on all 8 that was not fun. But all in all not to bad.
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Bombsquad85

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Well changed plugs and wires today. My plug wires were I guess melted to the ends of the plugs. I had to rip the boots off piece by piece on all 8 that was not fun. But all in all not to bad.
53f74abbbfaee06a1606e97ded4fa526.jpg


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What plugs did you use to replace them? I want to do plugs and wires next
 

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