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How small of a leak will dye show?
Have this 2014 GMC sierra with automatic ac. Truck came in a month ago with no cool air from AC. Only had about 10 psi pressure KOEO. Evacuated, vacuum tested, & recharged. Added about an ounce of dye to the system. Ran it for 45 min in the shop. No sign of le... Login to read more. ![]()
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| Engine | 5.3 L |
| Trans | 6-speed Automatic (Electronic) |
Vehicle Data
2014 GMC Sierra 1500 SLT 5.3L
| Engine | 5.3 L |
| Trans | 6-speed Automatic (Electronic) |

43 Replies Received
43 Replies Received