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  1. Vortec 6200 6.2L V8
    I just wanted to ask if a L9H Vortec would fit my 2010 GM Sierra 1500, and what other parts/components I may need to get it to work properly. If there are any other long lasting engines that you know of that might fit better, please tell me. I currently have 281k miles on my 2010 GM Sierra 1500...
  2. Vortec 5300 5.3L V8
    My truck will start right up in the cold at a high idle but then will stall out after a few seconds. This issue only occurs whenever the temp dips below around 40 degrees F. Getting engine codes P0171 & P0174. Truck also sputters and acts like it's going to die when it rains. Something is...
  3. 4-Speed Automatic Transmission
    I’ve been noticed a grinding noise more and more lately in my 02 sierra 5.3. It sometimes comes around slightly at idle but I mostly hear it when accelerating and when the rpm’s increase when the trans downshifts. I’ve idled it in neutral and find it will still make that noise so I don’t think...
  4. Vortec 5300 5.3L V8
    So when I first stop and start the idle no smoke comes out. But after idling for 5+ minutes smoke starts to come out the exhaust pipe. When I drive the smoke goes away and everything seems fine Also I had just recently got my oil changed 4 months ago and the oil level light came on. So I...
  5. Vortec 4800 4.8L V8
    Hey there, hopefully someone can guide me in the right direction. I have a 2013 Silverado 1500 LT with the 4.8l. About a month ago I started hearing a top end sounding ticking noise. Would happen when it was cold then be pretty faint once the truck was warmed up. Did not sound like a knock at...
  6. Vortec 5300 5.3L V8
    I was driving the truck, it was running smooth. Then at a stop light it started running rough. I pressed on the gas and rpm’s went up but it had no power. Could only get to about 45mph. I pulled over and turned the truck off and then started it right back up. It was still running rough. I turned...
  7. Vortec 6000 6.0L V8
    I drive a 2009, 2500 HD and just had a new ECM throttlebody and pedal sensor replaced. Before that a new fuel pump the truck runs great most of the time. It periodically still hard starts. When it goes to turnover it won’t fire up for about a five second interval. As it turns over it slowly...
  8. Vortec 5300 5.3L V8
    Did some research, couldn’t find anyone having this issue. I am experiencing oil temperatures when running at operating that are in the 235 to 250 range, specifically getting hot when pulling a load truck is an 07 NNBS with a 5.3 and 4L60. Coolant temperature stays at a very comfortable 198 to...
  9. Vortec 4800 4.8L V8
    I have a 2008 1500 with a 4.8 with 420,000 miles on the odometer. With such high mileage I’ve been looking for a possible engine swap. I found a 2007 6.2 out of an Escalade. Would this bolt right up? Any help would be greatly appreciated as I am open to any advice.
  10. Vortec 4300 4.3L V6
    Heading to work, Driving for about 10-12 minutes through town to then merge onto the interstate, I let the transmission do the work of getting the truck up to speed daily, I was about 40 percent on the throttle accelerating to about 60mph and the engine light started flashing, traction control...
  11. EcoTec 5.3L V8
    Has anyone had experience with this code popping up on their truck? What is the cause and effect of this code/issue? What is the repair that you had to do? Where about on the engine is this solenoid valve located? Is it safe to drive or would I be running the risk of burning up my engine...
  12. Vortec 5300 5.3L V8
    first time trying to do a engine swap. I have a 96 Chevy 1500 with the 5.6 and a 2001 gmc Yukon with 5.3. I am wanting to swap the 5.3 Yukon engine into the Chevy 1500. Any suggestions on parts that I need to make this work the best ?
  13. Vortec 8100 8.1L V8
    Hey y’all, I usually scan through the threads as a need to know basis…but I’m stumped on this one so I joined and am hoping for some input! I have a 2003 Silverado 2500HD w/ 8.1 and Allison trans. She’s a LS, ext cab 4x4. 290k miles. I bought from California 6 years ago and she is very clean...
  14. Vortec 5300 5.3L V8
    I have a 2005 Silverado 5.3 Vortec with now 192k on the engine. I am experiencing what I seem to be pretty good coolant loss. About 150-200 miles to empty my reservoir of coolant. Within the last year I’ve torn this truck apart trying to chase issues. I have replaced, thermostat, water pump...
  15. ⚡ 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...
  16. 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...
  17. 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...
  18. 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...
  19. 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?
  20. TurboMax 2.7L 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...
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