Cooling System - Thump Noise/Gauge Fluctuation

Article No.
97-18-9

09/02/97

^ COOLING SYSTEM - TEMPERATURE GAUGE FLUCTUATION - VEHICLES WITH 4.0L ENGINE

^ NOISE - "THUMPING" HEARD FROM WATER PUMP AREA - VEHICLES WITH 4.0L ENGINE

LIGHT TRUCK:
1994-97 AEROSTAR, EXPLORER, RANGER

ISSUE:
A "thumping" noise or temperature gauge fluctuation may occur on some vehicles. This may be caused by the water pump delivering an uneven flow throughout the engine.

ACTION:
Replace water pump and gasket with revised Water Pump (F7PZ-8501-AA) and Gasket (FOTZ-8507-A). Refer to the appropriate year Aerostar/Ranger/Explorer Service Manual, Section 03-03, for water pump replacement procedure.

PART NUMBER PART NAME

F0TZ-8507-A Water Pump Gasket
F7PZ-8501-AA Water Pump

OTHER APPLICABLE ARTICLES: NONE

WARRANTY STATUS: Eligible Under The Provisions Of Bumper To Bumper Warranty Coverage

OPERATION DESCRIPTION TIME

971809A Replace Water Pump And 1.3 Hrs.
Gasket - Ranger And Explorer

971809B Replace Water Pump And 2.1 Hrs.
Gasket - Aerostar

DEALER CODING
CONDITION
BASIC PART NO. CODE
8501 42

OASIS CODES: 204000, 204200, 402000, 497000, 702100