engine-loss of power-hard starting/rough idle-poor acceleration/performance

[julius <elprofe@caribe.net>]

MODELS(1986-1988 5000S AND 5000 TURBO VEHICLES
      (1989 100 AND 200 VEHICLES)
CAUSE:
protective coating on side of fuel tank loosens and migrates to fuel
pump inlet screen,where,over time,flow is gradually reduced through the
pump inlet screen.this substance can be identified as a brown waxy
residue.
SERVISE SOLUTION:
Inspect the fuel pump inlet strainer for a brown,waxy residue.
-fuel tank must not be more than half full
-carefully note position of all hoses,wires and clips;component must be
reinstall in exactly same position!!
-disconect and remove fuel pump from fuel tank
-disassemble and remove nylon mounting bracket from fuel pump 
-lay pump on edge of work surface and grasp firmly with hand
-remove inlet screen at base of pump by cutting screen as close as
possible to the crimp(using of sturdy sharp knife)leaving as few strand
of filter material as possible
-hold knife parallel to the pump or at a slight angle away from center
while cutting to ensure maximum removal of screen material
-gently knock pump against a flat surface to shake loose any remaining
screen material or debris
-reassemble pump and reinstall in vehicle
-perform quality check to assure proper pump operation
NOTE
If the pump is noisy or pump performance is reduce after performing this
modification
-install new pump of the same type,however;the new pump must be modifie
by removing the screen as previously described...