Original text and source

Original text

RECENTLY, MY CHECK ENGINE LIGHT CAME ON IN MY 2006 YUKON DENALI XL W/ A 6.0 ENGINE. THE DIAGNOSTIC TEST SHOWED A GAS CAP PROBLEM. HOWEVER, THIS DID NOT FIX THE ISSUE. SEVERAL WEEKS LATER, THE ENGINE STARTED MAKING WHAT SOUNDED LIKE A CLICKING SOUND. UPON FURTHER INVESTIGATION, IT WAS DISCOVERED THAT THERE WAS A LEAK IN THE DRIVER'S SIDE EXHAUST MANIFOLD. WHILE IN THE SHOP, THE MECHANIC DISCOVERED 2 BOLTS THAT WERE BROKEN ON THE DRIVER'S SIDE AND IT WAS FOUND THAT ONE OF THE BOLTS ON THE PASSENGER SIDE IS BROKEN, BUT THE PASSENGER SIDE EXHAUST MANIFOLD WAS NOT YET LEAKING. THE AUTO SHOP WAS ABLE TO EXTRACT ONE OF THE BOLTS, BUT HAS FOUND IT IMPOSSIBLE TO REMOVE THE OTHER ON THE DRIVER'S SIDE WITHOUT PULLING THE ENGINE. THIS IS A NECESSARY REPAIR BECAUSE IMPROPER EXHAUST IS A DIRECT VIOLATION OF EPA STANDARDS. FURTHERMORE, ENGINE FIRES CAN RESULT FROM THIS TYPE OF ISSUE. UPON FURTHER RESEARCH, I HAVE FOUND NUMEROUS OTHER GM VEHICLE OWNERS WITH A SIMILAR EXHAUST MANIFOLD BOLT PROBLEM. IN FACT, THERE IS A VIDEO CREATED BY CARQUESTIONS ON THIS EXACT ISSUE. THE FOLLOWING IS THE LINK TO THIS VIDEO HTTP://WWW.YOUTUBE.COM/WATCH?V=0YG6WLBNZGI , GM SHOULD INVESTIGATE AND CONSIDER A RECALL OF GM VEHICLES WITH THIS PROBLEM, NOT ONLY BECAUSE IT IS VERY COSTLY TO THE CONSUMER, BUT IS ALSO AN EPA AND SAFETY ISSUE. *TR

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Source

Source: NHTSA ODI Complaints — Owner complaint filed with a government agency
Reporter type: Owner
Source reference: 10435972
Country / market: US
Language: en
Document version: Version 1 (1 held)
Note on the source: US federal government dataset. Complaints are unverified consumer reports, not confirmed defects.

Dates

Incident date: 2011-10-10
Received by source: 2011-11-15
Added to the source's file: Unknown: not returned by the source API
Issued / published: Unknown: not returned by the source API
First observed: 2026-10-04 17:39 UTC (initial bulk load)
This version fetched: 2026-10-04 17:39 UTC