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Complaint 1483751

2005 HUMMER H2 • ENGINE • incident Jul 1, 2018

Crash
No
Fire
No
Injuries
0
Deaths
0
Complaint ID
1483751
Make
HUMMER
Model
H2
Model Year
2005
Component
ENGINE
Incident Date
Jul 1, 2018
Date Received
Jul 18, 2018
Data As Of
Aug 1, 2026

Complaint Summary

ENGINE

Owner Narrative

VEHICLE HAS 133,000 MILES. IT HAS NOW EXPERIENCED AN EXHAUST MANIFOLD GASKET LEAK DUE TO BROKEN BOLTS. THIS IS CAUSING NOISE FROM THE ENGINE AREA, AND IS UNSAFE DUE TO THE LEAK OF HOT GASES BEING RELEASED FROM THE ENGINE AT THE POINTS OF FAILURE (BROKEN BOLTS). THIS MAY BE AN EPA CONCERN AS WELL, AND COULD ALSO LEAD TO FAILURE OF CATALYTIC CONVERTER. REPAIR ESTIMATE IS $1,300. AN ONLINE SEARCH YIELDS HUNDREDS OF OTHER RESULTS WITH SAME FAILURE AND COMPLAINT ON ALL GM V8 ENGINES FOR YEARS 1999-2007. THIS AFFECTS THE 4.8L, 5.3L, AND 6.0L MODELS. THIS IS A DESIGN FAILURE AND THE AFFECTED VEHICLES WITH THESE ENGINES SHOULD BE RECALLED.

Owner-submitted narrative on file with NHTSA. Complaint narratives are self-reported and have not been verified.

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