Why Are Exhaust Manifold Bolts Breaking On Chevy Silverados
Camila Farah
Bolts are not covered under gm powertrain warranty.
Bolts tend to start dropping their strength around 750 f so. 3 broken exhaust manifold bolts 2 next to the firewall. The 2007 chevrolet silverado has 1 problems reported for exhaust manifold bolts broken. What causes an exhaust manifold stud bolt to break.
I dont know really why they break on the ls engines its all of them from the 4 8 to the 6 0 for what ever reason the head breaks off the bolt over time and the bolts are locktited in from the factory and from what i read a bear to get out i looked at mine closer and both the passenger and driver side rear most bolts are broke and has exhaust leak im guessing im going to have no choice but to. 0 v8 s are junk and defective. The exhaust manifolds are formed from the factory using fine grain cast iron and like most metals it expands and contracts during duty cycles of heating and cooling. This expansion happens naturally and at first the manifold and mounting studs are in a state of elastic deformation.
He said the manifolds warp and break off the bolts. I heard the exhaust leak before i purchased it but the truck was immaculate and i couldnt pass it up since i enjoy doing my own maintenance. 2007 chevy silverado exhaust manifold bolts snapping. I just purchased my 2003 2500 hd with the 6 0l.
RELATED ARTICLE :
- why does mace windu have a purple lightsaber
- why does my cat keep bringing me her kittens
- why does my cat sit on my chest
Wades shows you a little known trick to help loosen up some of those old seized and corroded exha. Average failure mileage is 178 000 miles. The manifold bolts are long so you have to heat the head a little more and have the heat travel to the threads which wont be equal amount of heat on the head vs the threads. So when you heat the bolt head just to see red your heating the bolt to about 1k f just to get it red and cherry red is 1 5k f orange is around 1 7k f.
I talked to the chevy garage and they said they have seen a few of the 6 0l come in with the same problem. In fact the day i was there he told me what the price of a new manifold was by looking at a repair order that was sitting on the counter.
2005 Chevrolet 2500hd Exhaust Manifold Repair Youtube
Apdty 028218 Exhaust Manifold Clamp Bolts Solves Exhaust Leak From The Broken Rear Exhaust Manifold Bolt Problem On 1999 2009 Dorman Cylinder Head Exhausted
The Chevrolet V8 Intake Manifold Problem Solved For Good
Gm 5 3 Liter Exhaust Manifold Clamp Installation Guide To A Broken Rear Bolt Youtube
Amazon Com Dorman 03413b Exhaust Manifold Hardware Kit For Select Models Automotive
Silverado 2500hd Broken Exhaust Manifold Bolts Removal Youtube
Dorman Chevy Silverado 1999 Cast Iron Natural Exhaust Manifold
Chevy Silverado Broken Exhaust Manifold Bolt Brokenbolt Com
Amazon Com Kap169 Exhaust Manifold Bolt Repair Kit For 4 8 5 3 6 0 6 2 Chevrolet Silverado Gmc Sierra Yukon Denali Escalade Hummer With A 4 8l 5 3l 6 0l 6 2l Engine No Need To Remove Broken Bolts Automotive
Source : pinterest.com
