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  1. 2nd Gen Chevrolet Colorado Forum / 2015 GMC Canyon
    I'm hoping some of you are brighter than me because I'm stumped. If I don't drive my '16 Z71 every day, it will be completely dead and requires a jump to start. I figured it was my old battery so I bought a new Optima yellow-top, which worked fine for a couple days, then when the truck sat over...
  2. 2nd Gen Chevrolet Colorado Forum / 2015 GMC Canyon
    Hey y'all, looking for diagnostic advice on a starting/power issue that started yesterday. Basically, the truck shows a couple of warnings in a row and won't turn over. It shows the things in the video, but doesn't do anything when turning the key. 2018 ZR2 V6, ~40k miles. Here's the timeline...
  3. 2nd Gen Tires, Wheels, and Suspension
    Vehicle: 2017 Colorado duramax 40k miles issue: (I am by no means mechanically savvy so please excuse some of my descriptions) so about a week and a half ago I noticed a very odd THUMP noise I've never heard before when I started my truck, right under the driver side seat. imagine hitting two...
  4. Technical Questions / Tips / How To
    2004 gmc canyon, 3.5 5cyl 4x4, little over 100k. Well maintained and runs great but lately it seems to struggle a bit to start first thing in morning. Tries to turn for maybe five seconds before kicking on. Tried holding down gas and starting to see if perhaps idle control was issue, but when I...
  5. Technical Questions / Tips / How To
    Hey guys. I have a 12 Chevy Colorado 4x4, 3.7L 5 cyl. Yesterday it took a good 10-15 seconds to start. It sounded like it was trying and all the dash lights were on and all signs pointing to battery. Had the battery tested and it was 9% health so I replaced it. This morning, same exact thing...
  6. Technical Questions / Tips / How To
    Hello Colorado Fans, I wanted to run this issue past you. I've replaced the battery, spark plugs, and fuel filter on my 2005 Colorado. My truck won't start at some random times. Usually about once every 2 weeks. I let the car sit for a little bit and then it works again. I have been reading...
  7. 2nd Gen Engines and Technical Discussion
    2019 V6 - Occasionally (randomly), when starting up, I get a thud (mis-fire, or mini-back fire, or bump) in what feels like one of the cylinders in the engine. This occurs very randomly, and directly as soon as I let off the ignition key. The service shop so far has not been able to replicate...
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