Symptom

Buzz from under the hood when changing engine RPM.

Possible Cause

The AIR pipe contacts the fuel line attachment stud on the dash panel.

Diagnosis

Open the hood and visually inspect the pipe for contact with the stud.

Corrective Action

1. Loosen the hose clamp on the AIR pipe at the check valve.
2. Rotate the hose on the valve to reposition the pipe to gain clearance to the stud.
3. Make sure clearance is maintained to the exhaust manifold.

Symptom

Rattle from under the hood.

Possible Cause

The hood striker is bouncing in the hood latch.

Diagnosis

Gently apply up and down pressure to the rear edge of the hood checking to see if the hood is snug to the anti rattle bumpers.

Corrective Action

1. Adjust the anti rattle bumpers up to be snug to the hood .
2. Lubricate the bumpers and strikers with white lithium grease.
3. Lower the hood latch if necessary to maintain hood to fender flushness.

•	The hood should be 1 mm (0.004 in) low with no bumper contact.

•	Level the hood by raising the bumpers.

•	The hood latches should lock when the hood is lowered with a minimal amount of additional downward force.

Symptom

Twang or rattle from the front of the vehicle when closing the hood or a door.

Possible Cause

The tension springs on the rear of the air deflector are contacting the deflector.

Diagnosis

Raise the vehicle and check the rear of the air deflector for spring contact.

Corrective Action

Install a spacer, (a self sticking rubber pad, or equivalent), between each spring and the rear of the deflector.