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GM Full size SUV s P0442
We had this Yukon Denali in for a small leak DTC and it would show a leak on the Purge/Seal test. We verified the leak with a low pressure decay test with nitrogen and a gauge. Breaking the system down we isolated the leak to somewhere on the tank. Pulled the ... Login to read more.
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| Engine | 6.2 L |
| Trans | 6-speed Automatic (Electronic) |
Vehicle Data
2008 GMC Yukon XL 1500 Denali 6.2L
| Engine | 6.2 L |
| Trans | 6-speed Automatic (Electronic) |
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