Bug Shield Question
Senior Member
Joined: Dec 2005
Posts: 236
Likes: 1
From: Alabama
Huh?
What? A bug shield causes excessive aerodynamic drag? I'm envisioning pastoral scenes and the bovine odors associated therewith.
Translation: BULLS***T
How in the hell can a three inch piece of plastic cause a noticeable problem against a truck of such size and power? I could understand if someone bolted a sheet of pexiglas to the front of their truck, but a bug shield? Come on. Someone's thinking too much.
Translation: BULLS***T
How in the hell can a three inch piece of plastic cause a noticeable problem against a truck of such size and power? I could understand if someone bolted a sheet of pexiglas to the front of their truck, but a bug shield? Come on. Someone's thinking too much.
Thread Starter
|
Senior Member
Joined: Jan 2005
Posts: 155
Likes: 0
From: Destin,FL
TSB 04-18-8 HOOD FLUTTER AT HIGHWAY SPEEDS
ISSUE:
Some 2004 F-150 vehilcle may exibit hood movement at the back of the hood due to high air turbulence, while driving at highway speeds. This condition may be amplified by the installation of an accessory bugshield and may be more pronounced when passing an on-coming vehicle on a two lane road.
ACTION:
Refer to the following Service Procedure.
SERVICE PROCEDURE:
Confirm that the hood is flush with the front fenders at each front corner. I the hood is under-flush, adjust the hood stops to raise the hood flush with the tops of the front fenders. Check the amount of drag at the rear hood to cowl seal with a piece of paper. Place a piece of paper between the seal and hood, close the hood and then slowly pull the paper out. It there is sufficient drag, indicating good seal to hood contact, return the vehicle to the customer. If there is little to no drag, obtain locally a piece of fuel hose147cm long& 11mm diameter( 58" long & 3/16" diameter). Lube the hose with a soap-based solution and install the hose inside the hood seal bulb.
ISSUE:
Some 2004 F-150 vehilcle may exibit hood movement at the back of the hood due to high air turbulence, while driving at highway speeds. This condition may be amplified by the installation of an accessory bugshield and may be more pronounced when passing an on-coming vehicle on a two lane road.
ACTION:
Refer to the following Service Procedure.
SERVICE PROCEDURE:
Confirm that the hood is flush with the front fenders at each front corner. I the hood is under-flush, adjust the hood stops to raise the hood flush with the tops of the front fenders. Check the amount of drag at the rear hood to cowl seal with a piece of paper. Place a piece of paper between the seal and hood, close the hood and then slowly pull the paper out. It there is sufficient drag, indicating good seal to hood contact, return the vehicle to the customer. If there is little to no drag, obtain locally a piece of fuel hose147cm long& 11mm diameter( 58" long & 3/16" diameter). Lube the hose with a soap-based solution and install the hose inside the hood seal bulb.