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1-11 of 11 Results
  1. Electrical
    I have a 2008 5.3 4x4 that was wrecked before I bought it. It had an issue with the cooling fans not coming on so I took it to my mechanic ,and when he got under the truck one fans was plugged in and the other wasn’t. When he plugged in the second fan something went sideways and it fried my...
  2. Duramax 6600 6.6L V8 Diesel
    My 04 silverado 2500hd duramax 4x4 was somehow damaged in a bad storm 2 weeks ago. Lightening popped so loud. It hit different things in side the house. My truck was parked between 2 other vehicles. Hours after the storm I went to my truck and opened the door. The strong smell of melted...
  3. Vortec 5300 5.3L V8
    2012 5.3, oil pressure would start at 35 to 40 #, then after a few minutes it would drop down to 20# and not come back up, changed the sensor and still doing the same thing, light is on for oil pressure, engine runs fine, could be a lifter noise at first, around 80,000 miles, oil is changed...
  4. EcoTec 5.3L V8
    Hello , new to the group thanks so sorry if I’m posting to wrong group or if question has been asked before. My issue is that I bought a ‘15 1500 WT 5.3L that had around 350k with lazy #7 cylinder. So I bought used motor with around 100k from a ‘15 gmc 1500. Swapped motors out and when I went to...
  5. Vortec 5300 5.3L V8
    Recently replaced my coolant temp sensor and radiator hose adaptor because it broke off and leaked out all my coolant. Now my truck doesn’t blow hot air and says low coolant even though the coolant is filled up. Any help with a diagnosis? Head gasket? Air in the system?
  6. 2.7L Turbo I4 Gas
    Most of the posts and comments about Chevy’s and GMC’s 2.7 L 4-cyl. are years old. I suppose that could be seen as good. As someone who’d consider the 2.7 L in a Silverado or Sierra since I don’t do a lot of heavy duty truck work, I’m curious. I’m shopping. I’ve driven it. I like it. We mostly...
  7. Electrical
    91 Chevy Silverado 5.7 Turn key forward can here fuel pump run about 2-3 seconds. Try to start no gas in TB. Stop cranking, Leave key forward but not cranking. waited this time( video) 43+ - seconds. Ejectors turn on full throttle; will fill TB and spill onto intake. I have a video because some...
  8. Vortec 5300 5.3L V8
    So I am considering swapping my current 5.3 (LH6 Vortec 5300) for another 5.3, but newer. I have a 2007 NNBS with about 185k on it. I want to buy a new engine/possibly transmission for it because they are both starting to fall apart. The problem is, Chevrolet has about a thousand different...
  9. Vortec 5300 5.3L V8
    Have an 07 NNBS LH6 5.3. Found lots of sites listing engine internal specs but not intake system specs. Anyone know the stock bore size (think it might be 87mm not sure) and could use a site for future reference. thx
  10. Vortec 5300 5.3L V8
    Hello Just completed a valve job on my 06 5.3. replace lifters and oil pump. Reason for this i was getting smoke upon start and acceleration. Took me three weeks cause of time issue. All this time the battery was disconnected. When I try to start the engine, It will try to start and just die. I...
  11. Vortec 4800 4.8L V8
    This happened randomly last night. I was driving home from work when my truck sputtered and I thought nothing of it. But as I kept driving i started noticing a difference. I hit the gas and it would rev up to 1500 and then die. I got it into a parking lot and when i started it it just bogs down...
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