I have a 1999 Grand Marquis/LS and I have one issue that I need some help understanding. My car hums for about a minute then it kills but starts right back up like it never happened. Does anyone out there have a clue to what that could be. It's been put on a machine and the only thing came up was an oxygen sensor,replaced that and it still hums.

Sanoma27
0

Asked by Dec 03, 2012 at 07:07 AM about the 1999 Mercury Grand Marquis 4 Dr LS Sedan

Question type: Maintenance & Repair

3 Answers

TonytheWoodsman
1,535

It hums because it doesn't know the lyrics. Just kidding. I think there may be something in the air intake system that is sticking shut.

joef
5,085

It sounds like it is your idle air controller! These fail very commonly in all different types of ways. I would replace it. It is a cheap part!

3 out of 3 people think this is helpful.
Best Answer
Sanoma27
0

Thanks that's very helpful!!

Your Answer

Add photo

Related Questions

  • 99 Grand Marquis turns but wont start 4 answers

    I have a 1999 Mercury Grand Marquis. I had the check engine light on so I had the codes read and it said misfire on cylinder 1 & 6 check spark plugs. Changed the spark plugs, seemed like everything...

    1999 Mercury Grand Marquis 4 Dr LS Sedan

    -

    Maintenance & Repair

  • 04 Grand Marquis Ls Wiper work when they want 1 answer

    I have a 04-Grand Marquis Ls and my windshield wipers are going crazy, * the windshield wipers fluid is spraying out on it's own * they only worked on high * then they stopped coming on period I ch...

    2004 Mercury Grand Marquis

    -

    Maintenance & Repair

  • Loud radiator fan 2 answers

    I currently own a 2007 Mercury Grand Marquis LS. I'be noticed my radiator fan is loud. The fan kicks on high speed after driving for about 20 minutes and will not shut off until I let the car cool f...

    2007 Mercury Grand Marquis LS Premium

    -

    Maintenance & Repair

  • 99 grand marqui wont start but turns over 1 answer

    the car turns like it wants to start but does not and then battery dies

    1999 Mercury Grand Marquis 4 Dr GS Sedan

    -

    Maintenance & Repair

  • humming sound till car warms up 2000 Marquis 1 answer

    I have a 2000 marquis and I hear a humming sound till the car warms up. what could it be?

    Mercury Marquis

    -

    Maintenance & Repair

Grand Marquis
Looking for a Used Grand Marquis in your area?
CarGurus has 2,706 nationwide Grand Marquis listings starting at $1,877.
ZIP:

Search Mercury Grand Marquis Questions

Mercury Grand Marquis Experts

#1 Tracy Hooks
Tracy Hooks
Reputation 3,710
#2 kbro
kbro
Reputation 1,670
#3 FordNut
FordNut
Reputation 1,170
View All

Related Models For Sale

Used Ford Crown Victoria"
12 Great Deals out of 1,534 listings starting at $1,995
Used Lincoln Town Car"
44 Great Deals out of 2,432 listings starting at $995
Used Chevrolet Impala"
1,087 Great Deals out of 45,294 listings starting at $2,000
Used Chevrolet Tahoe"
555 Great Deals out of 31,352 listings starting at $1,500
Used Ford Mustang"
317 Great Deals out of 47,326 listings starting at $1,100
Used Honda Accord"
599 Great Deals out of 71,690 listings starting at $999
Used Ford F-150"
2,473 Great Deals out of 195,643 listings starting at $1,600
Used Toyota Camry"
926 Great Deals out of 75,436 listings starting at $900
Used Cadillac DeVille"
9 Great Deals out of 2,420 listings starting at $1,895
Used Ford Taurus"
206 Great Deals out of 20,585 listings starting at $1,500

Used Cars For Sale

2011 Mercury Grand Marquis For Sale
48 listings starting at $12,000
2010 Mercury Grand Marquis For Sale
9 Great Deals out of 149 listings starting at $6,995
2009 Mercury Grand Marquis For Sale
144 listings starting at $3,500
2008 Mercury Grand Marquis For Sale
4 Great Deals out of 198 listings starting at $3,995
2007 Mercury Grand Marquis For Sale
6 Great Deals out of 200 listings starting at $3,300