Humming_Groaning Noise

H

houghs

New Member

Jul 9, 2007

4

0

0

Phoenix, AZ

Jul 9, 2007

#1

• Jul 9, 2007

• #1

My 01 Mustang Buliltt makes an intermittant noise (once every day or two) when I let off the gas. Once I give it gas, it stops, otherwise it will sometimes stall. It sounds like it's coming from underneath the car. Anybody have any ideas on what it might be?

 

Superhereaux

chicks make me feel inadequate

Founding Member

Jul 30, 2002

538

3

59

South Texas

Jul 9, 2007

#2

• Jul 9, 2007

• #2

rolling, in neutral?


the more info you give the easier it'll be to pinpoint

 

K

Kilgore Trout

Fried or Broiled ?

10 Year Member

Mar 30, 2005

4,749

95

134

Jul 9, 2007

#3

• Jul 9, 2007

• #3

Its the IAC.

 

H

houghs

New Member

Jul 9, 2007

4

0

0

Phoenix, AZ

Jul 9, 2007

#4

• Jul 9, 2007

• #4

Noise usually occurs while rolling (most of the time while in gear). There is no irregular idle. Cars runs great otherwise.

 

smokin00GT

New Member

Mar 22, 2007

80

0

0

United States

Jul 9, 2007

#5

• Jul 9, 2007

• #5

2 simple things to check: Tranny fluid, and power steering fluid.
Is the noise only in certain gears? We need a bit more info

 

H

houghs

New Member

Jul 9, 2007

4

0

0

Phoenix, AZ

Jul 9, 2007

#6

• Jul 9, 2007

• #6

It doesn't seem to matter what gear the car is in when the noise occurs. It doesn't seem to matter what speed.

 

DTNODYA

Member

Dec 15, 2005

831

1

16

Jul 9, 2007

#7

• Jul 9, 2007

• #7

IMO, it's either the IAC or something with the transmission ... As mentioned, check your trans fluid.

 

Superhereaux

chicks make me feel inadequate

Founding Member

Jul 30, 2002

538

3

59

South Texas

Jul 9, 2007

#8

• Jul 9, 2007

• #8

Kilgore Trout said:

Its the IAC.

Click to expand...

very likely

if the idle drops low enough the entire car will make the noises you described. does the a/c compressor kicking on affect idle?


how many miles on the car?

 

H

houghs

New Member

Jul 9, 2007

4

0

0

Phoenix, AZ

Jul 9, 2007

#9

• Jul 9, 2007

• #9

The idle is okay, it doesn't get low. The A/C compressor kicking on does not affect either. Engine has 42,000 miles on it.

 

DTNODYA

Member

Dec 15, 2005

831

1

16

Jul 10, 2007

#10

• Jul 10, 2007

• #10

houghs said:

My 01 Mustang Buliltt makes an intermittant noise (once every day or two) when I let off the gas. Once I give it gas, it stops, otherwise it will sometimes stall. It sounds like it's coming from underneath the car. Anybody have any ideas on what it might be?

Click to expand...

It stalls while you are driving it only when you let off the gas??

Does it cut off/stall?

It sounds like the IAC but your description is vague at best.

 

Skidzz

Tinkerbell

Apr 11, 2005

328

1

19

Salt Lake City, UT

Jul 10, 2007

#11

• Jul 10, 2007

• #11

I'm certain it's the IAC. Mine was doing the exact same thing over the winter. It stopped after I changed out the IAC.