gurgerling AC noise is that normal

pastor scott.com · April 21, 2005

AC makes girgle noise is that normal 04 burb 5.3

scott

GM-Tech · April 21, 2005

AC makes girgle noise is that normal 04 burb 5.3

Normal, here's a TSB on it. They call it a hiss, but I know the noise you're talking about and I suppose one could call it a gurgle.

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03-05 Chevrolet/GMC/Cadillac All Full Size Trucks and Utilities Hiss Noise from Dash with AC On - kw HVAC idle blower compressor line hose #PIT3344 - (Jan 4, 2005)

03 - 05 Chevrolet/GMC/Cadillac All Full Size Trucks and Utilities Hiss Noise from Dash with AC On

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The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in the PI.

Condition/Concern:

Customers may comment of a hiss noise coming from the dash area with the A/C on. The noise can come and go or change intensity depending on A/C system loads (outside temp, engine RPMs, humidity, etc.)

Recommendation/Instructions:

The noise is normally only heard while stopped with blower on low and radio off. The noise is coming from the A/C orifice tube and is normal. No repairs should be made.

Please follow this diagnosis process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.

Models:

(03-05 Chevrolet All Full Size Trucks and Utilities) and (03-05 GMC All Full Size Trucks and Utilities) and (03-04 Cadillac All Full Size Utilities)

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GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". They are written to inform these technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions, and know-how to do a job properly and safely. If a condition is described, DO NOT assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See your GM dealer for information on whether your vehicle may benefit from the information.

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