2003 Chevrolet Suburban 1500 Q&A
2003 Chevrolet Suburban 1500 Question: I have a 2003 Chevy Suburban, leaking Antifreeze. having trouble locating where?
Usually out the corner of the intake gasket - bad007
Freeze plug? I believe there is one right above the compressor area. Hope this helps. - GPOF
Another 'very common' problem leak is the water pump on all of these LS/Vortec engines!! Really need an inspection mirror and flashlight to look at the bottom of the pump for any sign of leakage from the 'weep hole' area. Engine off of course! Repair shop can pressure test the system, that may help locate it. Had one with the 5.3 in the shop for a mystery leak and service, left it in the shop overnight, next morning found the H20 pump had leaked about a pint on the floor then simply stopped leaking! Even under pressure it would not show up again. Found it with a video scope by checking the weep hole and could see some coolant residue. Tough to find them at times!! The A/C compressor can't leak antifreeze! However the leaking pump will sure make it look like it is!!!!!!!!!! - pushrod