Coolant Leaking Problems of Chevrolet Suburban

Chevrolet Suburban owners have reported 3 problems related to coolant leaking (under the engine and engine cooling category). The most recently reported issues are listed below.

car image   Coolant Leaking problem of the 2003 Chevrolet Suburban 1
Failure Date: 11/28/2009

2003 chevy Suburban 1500 4wd 5. 3l gm has a known issue with the heads on these vehicles with the 5. 3l engines. The company (castech) who made the heads let them go with a defect that allows coolant to leak into the motor. Gm has a TSB on it as well #06-06-01-019b it can cause possible overheating due to coolant loss, as it leaks into the engine it creates rough idle and a slight missfire which will damage the converter sometime in the future. They know about this defect and should be forced to replace these heads with different ones. The only way to correct this issue is to replace the heads with another company.

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car image   Coolant Leaking problem of the 2002 Chevrolet Suburban 2
Failure Date: 05/22/2008

The contact owns a 2002 Chevrolet Suburban. While driving approximately 40 mph, the check coolant warning light illuminated on the instrument panel. The illumination continued until coolant was added to the tank. The contact observed a gradual cooling loss over a period of time, but there was no evidence of a leak. The vehicle was taken to an authorized dealer and they stated that there was a crack in the cylinder head, and coolant was leaking in the oil chambers. The mechanic stated that the cylinder head needed to be replaced. The failure and current mileages were 96,000. Updated 07/16/08. Updated 07/16/08.

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car image   Coolant Leaking problem of the 1996 Chevrolet Suburban 3
Failure Date: 06/16/2001

1) major coolant leak from intake/cyl head gasket (left rear of motor) (2) engine trouble light indicates tc 1870 code problem in transmission valve body (3)windshield wipers work intermitently safety hazard (4) a/c dash lights cycle on and off when a/c button is pushed on but fan motor is shut off. All problems are "common" per dealership service writer.

See all problems of the 1996 Chevrolet Suburban.