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Showing results for tags 'exhaust system'.
I have been hearing around the nets that broken Exhaust Manifold Bolts are a thing for the GM5.3. So much a thing that there are kits sold on Amazon that will tighten the exhaust manifold to your block after a few bolts have broken their heads off. The removal of these broken bolts, I hear, is a sucky job. So, in that spirit, and because it was a nice day, I invested in a 10 dollar bag of exhaust manifold bolts and changed mine preventatively (I have 108,000 kms on my 2013 Sierra1500SLE). The old ones had rusted heads, and when I pulled them out they put up a bit of a fight (most of it was getting leverage angles on the right ratchets/wrenches), but otherwise I didn't see any obvious warning signs. So this begs the question: when are these bolts in danger of breaking off? Anyone had any experience with this?
My GM Diesel exhaust system nightmare! I bought a 2017 2500 LTZ midnight edition It worked fine for a year, then my GM exhaust system nightmare began. It all starts with cleaning exhaust filter continue driving then within 10-20 minutes it goes into Limp mode always at highway speeds and often under load. This happened over 6 times and would have happened more had I not left it at the dealership for so long and not been able to drive it. 3 weeks ago I finally had enough and I decided to trade it in for a 2020 2500 High Country. This weekend as I was towing snowmobiles up to the mountains in Colorado with less than 1,500 miles on the truck it said it was cleaning the exhaust filter keep driving. i continued to drive at 70 MPH and within 20 minutes it went into Low Power Mode and the check engine light came on. I was then stuck doing 20 MPH on mountain passes going into Vail. I have dropped the truck off at Chevy AutoNation North in Denver. I may be at the end of my road with Chevy trucks??? I have been a loyal GM truck owner for over 20 years ever since I was in the Marines. Scot Knutson