Check the engine oil. If you pull the dipstick and it has white goop on it the head gasket is blown or the intake manifold is leaking. The heater core may be leaking as well. Does the windshield fog over on the inside or do you smell a sweet smell inside of the vehicle? If so the heater core is leaking. Hope that helps! Jim
I replaced the radiator in my 00 Yukon xl 1500 an it's still losing fluid what could it be or what should I check
2000 GMC Yukon XL 1500 SLT 4WD
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Maintenance & Repair
the oil gauge doesn't say on 40 it often drop down slowing when i stop the truck
2000 GMC Yukon XL
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Maintenance & Repair
i have Yukon XL 1500 5.3 LITER ENGINE. STARTED LOSING OIL PRESSURE SO I CHANNGED THE SENDING UNIT AND THE OIL PUMP BUT STILL HAVE THE SAME ISSUE.
2000 GMC Yukon XL 1500 SLE
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Maintenance & Repair
coolant is leaking at rear of engine. its an external leak that puddles under the car but I cant tell where it originates. engine oil is normal, performance is fine except for temperature rise after...
2001 GMC Yukon XL 1500 SLE
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Maintenance & Repair
Replaced thermostat even tho it wasn't leaking close to it but just to get it out the way, also replaced the upper radiator hose. Went and put a patch on a transmission cooler line and it's not lea...
2000 GMC Yukon XL 1500 SLE 4WD
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Maintenance & Repair
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