Having problems with your Ford Mustang ?
99 ford mustang behind glove compartment hissing
\015 When i start the car I hear hissing\015
Could be several diff things, might be as simple as a leak in the air condition duct work, turn off the air when you start it and see if it goes away. Also there is a vacuum line under the dashboard, you will have to remove the glove box to trace it down. GOOD LUCK!
Repair Help & Product Troubleshooting for Ford Mustang
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