Chevrolet Suburban 1500 head gasket leak confirmed with white goo on oil dipstick, replacement needed on Chevrolet Suburban 1500

Submitted by user28699 · Jun 23, 2025
Published by RepairPal

Problem overview

Some Chevrolet Suburban 1500 owners report experiencing issues related to head gasket leaks, such as the presence of white smoke from the exhaust, which indicates coolant leaking into the combustion chamber. Additionally, these owners may notice a milky or frothy appearance on the oil dipstick, a common sign of a blown head gasket. Significant coolant loss without visible leaks is also reported as a potential indicator of this issue. To confirm a head gasket leak, some owners utilize fluid combustion tests and coolant pressure tests. Given the seriousness of a confirmed head gasket leak, prompt replacement is essential to prevent further engine damage, and many owners find it advisable to seek the assistance of a qualified mechanic for the repair process to ensure it is handled correctly and efficiently.

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Chevrolet Suburban 1500 vehicles with this problem

Average mileage: 128,000 miles
(128,000 - 128,000)

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