1990 KENWORTH T400 Recalls (3)

Campaign:
91V043000 on 03/20/1991
Component:
Service brakes, air
Manufactured:
07/31/1989 - 12/31/1990
Affected:
77
Defect:
Air brake system was modified by adding a longer air line between the abs solenoid and the transfer tee to simplify manufacturing. this modification caused the trucks to be in non-compliance with fmvss 121, brake timing test.
Consequence:
The mistimed brake and abs system may cause the truck tofail the stopping distance requirement of the fmvss, which may lead to anaccident.
Correction:
Remove the extra length of air line and install the transfer tee at the abs solenoid.
Notes:
System: air brake system and anti-lock air brakes; fmvss 121.vehicle description: trucks built with airglide 100 suspension and bosch absbrake system.

Campaign:
91V044000 on 03/20/1991
Component:
Suspension:rear
Manufactured:
04/30/1989 - 09/30/1989
Affected:
5,623
Defect:
Rear axle stabilizer (sway) bar may not have been properly heat treated.
Correction:
Replace the stabilizer bar.
Notes:
System: rear axle stabilizer (sway) bar.vehicle description: trucks with airglide 100 rear axle suspension.consequnce of defect: stabilizer bars with insufficient hardness may fail,causing loss of vehicle control that could result in an accident.

Campaign:
91V090000 on 06/19/1991
Component:
Visibility:windshield wiper/washer:linkages
Manufactured:
04/30/1988 - 07/31/1990
Affected:
15,000
Defect:
Sprague wiper assembly pivot can seize due to galvanic corrosion between the zinc-plated steel shaft and the bronze bushings.
Consequence:
This corrosion can cause wiper arm/blade assembly to stopwiping windshield, this could affect driver visibility and result in anaccident.
Correction:
Replace sprague wiper assembly pivot with an assembly not susceptible to galvanic corrosion.
Notes:
System: wiper assembly pivot.veehicle description: heavy trucks equipped with sprague wiper assembly pivot.

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