MAF Sensor - MIL ON/DTC's P0172/P0175 Set
Article No.98-3-4
02/16/98
^ AIR INLET - WATER IN AIR INLET ELBOW -
MALFUNCTION INDICATOR LAMP (MIL)
ILLUMINATES DUE TO WATER CONTAMINATION
OF AIR FILTER AND/OR MASS AIR FLOW (MAF)
SENSOR - VEHICLES WITH 4.6L ENGINE
^ MALFUNCTION INDICATOR LAMP (MIL) - MIL
ILLUMINATES - WATER CONTAMINATION OF AIR
FILTER AND/OR MASS AIR FLOW (MAF)
SENSOR - WATER IN AIR INLET ELBOW - 4.6L
ENGINE
^ LAMP - MALFUNCTION INDICATOR LAMP (MIL)
ILLUMINATES - WATER CONTAMINATION OF AIR
FILTER AND/OR MASS AIR FLOW (MAF)
SENSOR - WATER IN AIR INLET ELBOW - 4.6L
ENGINE
FORD:
1994-97 THUNDERBIRD
LINCOLN-MERCURY:
1994-97 COUGAR
This TSB article is being republished in its entirety to include a procedure to install a water deflection shield.
ISSUE:
Water may collect in the bottom of the engine air inlet elbow on some vehicles This may be due to the engine air inlet tube drain hole being blocked by debris or the water drain dump valve in the bottom of the air inlet elbow being unable to drain the collected water quickly enough. This condition may lead to water contamination of the air filter and/or the Mass Air Flow (MAF) sensor and can cause the Malfunction Indicator Lamp (MIL) to illuminate with Diagnostic Trouble Codes (DTCs) P0172 and P0175, and/or result in a driveability concern.
ACTION:
Install a small plastic shield to the grille opening reinforcement to force water run-off forward. Refer to the Instruction Sheet included in the kit for installation details.
PART NUMBER PART NAME
E9SZ-9601-A Engine Air Filter
F4SZ-12B579-A Mass Air Flow (MAF) Sensor (1994-95)
F6SZ-12B579-AA Mass Air Flow (MAF) Sensor - (1996-97)
F7SZ-9F721-AA Water Deflector Kit
OTHER APPLICABLE ARTICLES: NONE
SUPERSEDES: 97-8-5
WARRANTY STATUS: Eligible Under The Provisions Of Bumper To Bumper Warranty Coverage And Emissions Warranty Coverage
OPERATION DESCRIPTION TIME
980304A Remove Dump Valve, 0.7 Hr.
Inspect And Clean Drain
Hole, Inspect And/Or
Replace Air Filter And
Mass Air Flow (MAF)
Sensor, Install Water
Shield
DEALER CODING
CONDITION
BASIC PART NO. CODE
9A675 49
OASIS CODES: 206000, 499000, 607000, 608000, 608400, 609000, 609500, 610000, 610500, 611500, 614000, 614500, 698298