Blower Motor - Burning Odor/Smoke/Rustling Noise
Article No.99-20-6
10/04/99
^ AIR CONDITIONING - BURNING ODOR OR SMOKE
WHILE BLOWER MOTOR IS ON
^ NOISE - "RUSTLING" HEARD ALONG WITH AN
ODOR WHILE BLOWER MOTOR IS ON
FORD:
1991-1999 EXPLORER
MERCURY:
1997-1999 MOUNTAINEER
This TSB article is being republished in its entirety to change the Causal Part number.
ISSUE
A burning odor or smoke, and/or "rustling" noise may occur when the blower motor is running if leaves or foreign material enter the blower case. Noise complaints may result from debris coming in contact with the blower fan. In some cases, the debris may also come in contact with the blower motor resistor which may be hot enough to cause a burning odor or smoke.
ACTION
Clean the debris out of the blower case and install foam grommets around the wiper pivots to seal out further debris from entering the system. Refer to the following Service Procedure for details.
SERVICE PROCEDURE
ALL MODEL YEARS - CLEAN DEBRIS FROM THE HEATER CASE
1. Remove blower motor (refer to the appropriate Service or Workshop Manual for procedure).
2. Remove blower motor resistor.
NOTE
BE CAREFUL NOT TO DAMAGE OR BEND RESISTOR COILS WHICH COULD RESULT IN AN ELECTRICAL SHORT.
3. Clean the blower motor, motor cooling tube, blower housing, resistor, and inlet duct of all debris.
4. Reinstall resistor.
5. Reinstall blower motor.
1991-1994 MODELS YEARS - INSTALL FOAM GROMMETS AROUND WIPER PIVOTS
Refer to Figure 1 for grommet installation.
1. Remove the wiper arms from the splined shafts.
2. Place a beveled Grommet (XL2Z-78021A32-BA) with the offset hole, around each wiper shaft. Place the smooth side of the grommet facing up and the thin portion toward the windshield. Using the handle of a plastic knife, spoon or similar object, tuck the foam grommets under the sheet metal all the way around the shaft. When properly placed, the grommet should seal to the sheet metal.
3. Install the wiper arms on the shafts in their proper position relative to the windshield.
1995-1999 MODELS YEARS - INSTALL FOAM GROMMETS AROUND WIPER PIVOTS
1. Remove the wiper arms from the splined pivot shafts.
2. Remove the two-piece (left/right) plastic cowl grille by removing the one (1) screw in the center of the grille and then pulling on the grille to unseat the clips.
3. Place the round symmetrical Grommets (XL2Z-78021A32-AA) around the wiper shafts.
4. Replace the cowl grille by resetting the clips and installing the screw.
5. Install the wiper arms on the shafts in their proper position relative to the windshield.
PART NUMBER PART NAME
XL2Z-7802132-BA Grommet (Beveled)
XL2Z-78021A32-AA Grommet (Symmetrical)
OTHER APPLICABLE ARTICLES: NONE
SUPERSEDES: 99-15-6
WARRANTY STATUS: Eligible Under The Provisions Of Bumper To Bumper Warranty Coverage
OPERATION DESCRIPTION TIME
992006A Clean Debris From Heater 0.8 Hr.
Case And Install
Grommets
DEALER CODING
CONDITION
BASIC PART NO CODE
19805 49
OASIS CODES: 208000, 208999, 702000, 702300