For ALL Owners of GM & GMC Vehicles sporting the 5.3L Engines suffering from the Dreaded P0300 Random Misfire Code and the difficulty of running that issue to ground... Eric "O" from South Main Auto uses his Smoke Machine to find the source of an Unusual Vacuum Leak:
There is a Large Hole in the under side of the EGR Valve Gas Re-Circulation Corrugated Steel Flex-Pipe coming from the section that leads up from the Exhaust Manifold attachment point to the Bottom of the EGR where it Rusted, Corroded eventually gaping wide all the way through the Pipe:
This is the Complicated Dual Pipe Replacement Part available on eBay and RockAuto:
There is a Large Hole in the under side of the EGR Valve Gas Re-Circulation Corrugated Steel Flex-Pipe coming from the section that leads up from the Exhaust Manifold attachment point to the Bottom of the EGR where it Rusted, Corroded eventually gaping wide all the way through the Pipe:
This is the Complicated Dual Pipe Replacement Part available on eBay and RockAuto:
EGR Exhaust Gas Tube for 99-03 Chevy GMC Pickup Truck SUV Silverado Sierra V8 US | eBay
2001-02 Chevrolet Silverado 1500 V8 6.0L EGR Tube. 1999-02 Chevrolet Silverado 1500 V8 5.3L EGR Tube. 1999-02 Chevrolet Silverado 1500 V8 4.8L EGR Tube. 2001-02 Chevrolet Silverado 1500 HD V8 6.0L EGR Tube.
www.ebay.com
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