Fuel leak?

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Edelbrock

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Mar 28, 2025
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Location
Earth
First Name
Grumba
Truck Year
1977
Truck Model
K5 Blazer
Engine Size
400
Engine running rich, exhaust entering from the rear of the vehicle? Do you still get the fuel smell when the HVAC is on hi (non recycle setting)?

You would want all the windows closed for this test.

This would bring in fresh air from the front of the vehicle, and slightly pressurize the cab, to keep the exhaust from entering.
 

Ditch Wicked

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Jacumba Hot Springs, CA 91934, USA
First Name
Anthony
Truck Year
1989
Truck Model
Suburban V2500
Engine Size
5.7
Defenitly not exhaust coming in from the rear. The blower for the HVAC system isnt working, and the AC doesnt turn on. Can smell the fuel outside after shutting the engine down. And there are no visible fuel leaks on the ground or on the top of the intake manifold.
 

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