lq4
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injector upgrades
got a 03 yukon denali 6.0 awd transmission is currently getting full build with upgraded internals. looking for recommendations for injector and in-tank pump upgrades over stock, will be installing top end kit in coming weeks (cam, lifters, rockers, etc.) most likely going with a fast lsx...- peirs13
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- fuel fuel pump injectors lq4 upgrade
- Replies: 0
- Forum: Performance
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Replacing Radiator, Water Pump, Thermostat, Fan Clutch
So I have a 04 Yukon Denali and the radiator has been leaking for a while along with the water pump. Ive owned the truck since Oct 2015 and this is my second time replacing the water pump and my first time replacing the radiator. Intinitally I knew the radiator was leaking but after I while I...- qthor
- Thread
- aluminum coldcase denali gmc lq4 radiator thermostat water pump yukon
- Replies: 12
- Forum: Engine & Drivetrain
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6.0 Cam MPG Feedback Needed
Like many others, I'm thinking about a cam swap. However, I'm looking for a piece of info I haven't really seen anyone talk about - MPG... I'm about to do a BB tune, and like many projects, it seems to be suffering from scope creep. I'd like to do a cam eventually, so I'm seriously...- 02Yukon2500
- Thread
- 6.0 cam swap lq4 mpg
- Replies: 9
- Forum: Performance
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Random misfire
Ok so when I bought the truck a few years ago I would randomly get a p0300 code I'd feel it occasionally but not bad enough to be concerned. Plus I had alot of other repairs and maintenance to do. Well when I got my truck back from the trans shop I noticed the miss alot more and it's been...- Timc9516
- Thread
- 2003 yukon 6.0 lq4 misfire
- Replies: 11
- Forum: Engine & Drivetrain
