We Fixed Our K2500's Coolant Leak...and Found More Problems

For More Info visit us at: https://1aau.to/h-jNx Here it is again, our beat up and rusty OBS K2500! After getting it running, Cristian discovered that it was pouring out coolant. So we can move it around, and to make it less of a nuisance, he's going to fix the coolant leak! That should be no problem, right? Well, let's just say this old truck has some fight left in it. Need parts for your leaky truck, like a radiator or some lines? Visit 1AAuto.com using the link at the top of this description to find those and more for your old truck, new truck, car, or whatever! We have tons of parts, and videos showing you how to install them yourself! 0:00 Two Leaks and No Pressure 0:28 Diagnosis: It's Got to Be the Intake 1:34 Pressure Test — Wait, That's Two Leaks 2:33 The Radiator and the Putty Patch 5:37 Teardown: Top of the Engine 12:19 Fan Off, Distributor Out 16:32 Torching Out the Rotted EGR Tube 18:53 Fuel Lines and the Injector That Came Apart 22:49 Surprise — The Valve Covers Have to Come Off 25:53 The Gasket That Wasn't There 28:11 Cleaning: Vacuum, Scraper, Parts Washer 37:34 RTV on Pitted Surfaces — Right Way or My Way? 40:18 New Metal-Reinforced Gaskets Go On 43:31 Intake Back On and Torqued Evenly 48:53 Valve Cover Gaskets and the Bowed Cover Fix 56:17 EGR Delete, Brackets, and Front End 1:04:33 New Thermostat and Upper Hose 1:06:44 Radiator Fight — The Seized Oil Cooler Line 1:16:53 Cutting and Splicing the Line 1:20:14 New Radiator Goes In 1:25:16 The Distributor Won't Line Up 1:31:07 Camera Down Cylinder One 1:36:57 Final Pressure Test — One More Leak 1:43:05 Vacuum Fill and Bleed 1:46:17 First Start 1:47:32 Driving It Outside — No Leaks 1:50:05 Compression Numbers and What's Next This repair was done on a 1998 GMC K2500 Sierra SLE 5.7L Cab & Chassis 2-Door 4WD Automatic and the process should be similar on the following vehicles: 1988 GMC K2500 1989 GMC K2500 1990 GMC K2500 1991 GMC K2500 1992 GMC K2500 1993 GMC K2500 1994 GMC K2500 1995 GMC K2500 1996 GMC K2500 1997 GMC K2500 1998 GMC K2500 1999 GMC K2500 2000 GMC K2500 🔧 List of tools used: • No Tools Needed Subscribe:    / @1aauto   📱 Download the 1A Auto Repair App for more videos, torque specifications, and car repair information: https://1aau.to/appdownloadyt 🚗 For More Info visit us at https://1aau.to/h-jNx ⚠ DISCLAIMER: While 1A Auto strives to make the information provided in this video as accurate as possible, it makes no claims, promises, or guarantees about the accuracy, completeness or applicability of the content. No information contained in this video shall create any expressed or implied warranty or guarantee of any particular result. All do-it-yourself projects entail some risk. It is the sole responsibility of the viewer to assume this risk. 1A Auto is not responsible or liable for any loss damage (including, but not limited to, actual, consequential, or punitive), liability, claim, or any other injury or cause related to or resulting from any information posted in this video.