Heat & Air Switch makes grind noise

bluegill36
0

Asked by Feb 21, 2014 at 08:08 PM about the 2003 Mercury Grand Marquis GS

Question type: Maintenance & Repair

2003 Mercury Grand Marquis Heat/Air Switch makes grinding noise when turned on.
Replaced Blower Motor but have same noise. Any help or suggestions?

1 Answer

bluegill36
0

I replaced the new Blower Motor with the old original one after installing the "squirrel cage" and still had the grinding noise. Next I pulled the blower motor out and temporarily installed the new blower motor without the squirrel cage. Had wife crank car and turn blower motor on while I held it in my hand with it attached electrically to the proper wiring plug.There was no grinding noise. Returned new blower motor for refund and purchased a new squirrel cage. Installed new squirrel cage on old blower motor. Success at last. The grinding noise is gone. Special Note: The old squirrel cage had a barely visible hairline crack on each side of the hole where you mount it on the blower motor shaft. My conclusion is that when we cranked the car on a morning when we experienced the extreme cold weather recently the squirrel cage developed the hairline cracks due to it being made out of hard plastic material.

Your Answer

Add photo

Related Questions

Search Mercury Grand Marquis Questions

Mercury Grand Marquis Experts

#1 Tracy Hooks
Tracy Hooks
Reputation 3,730
#2 kbro
kbro
Reputation 1,690
#3 FordNut
FordNut
Reputation 1,170
View All

Related Models For Sale

Used Ford Crown Victoria"
9 Great Deals out of 1,502 listings starting at $1,995
Used Lincoln Town Car"
41 Great Deals out of 2,338 listings starting at $1,995
Used Chevrolet Impala"
1,098 Great Deals out of 44,338 listings starting at $1,050
Used Chevrolet Tahoe"
541 Great Deals out of 31,342 listings starting at $1,500
Used Mercury Marauder"
27 listings starting at $5,600
Used Ford Mustang"
310 Great Deals out of 47,294 listings starting at $1,100
Used Cadillac DeVille"
7 Great Deals out of 2,340 listings starting at $2,195
Used Toyota Camry"
973 Great Deals out of 76,211 listings starting at $1,000
Used Honda Accord"
583 Great Deals out of 73,550 listings starting at $1,495
Used Ford F-150"
2,334 Great Deals out of 197,995 listings starting at $1,500
Used Ford Taurus"
188 Great Deals out of 20,114 listings starting at $995

Used Cars For Sale

2008 Mercury Grand Marquis GS For Sale
41 listings starting at $3,995
2007 Mercury Grand Marquis GS For Sale
61 listings starting at $4,195