GT idle "feels" rough help

HoustonGT

Gilded Gelding

Apr 6, 2003

1,418

0

0

Houston

Dec 1, 2005

#1

• Dec 1, 2005

• #1

Hey guys. I just picked up a 2000 GT with 41k miles and the idle on the tach is as smooth as can be. No jump in rpm's or anything. The problem i have is that the idle feels rough through the shifter and kind of through the seat. It makes my leg move a bit. Also, if i listen to the exhaust it kind of pops a bit every 1-2 seconds as if i have flows or something but my exhaust is bone stock. BTW, im pretty sure its not misfiring or anything because the car runs VERY strong. Could it be that i just of need some new plugs? Thanks

 

K

Kilgore Trout

Fried or Broiled ?

10 Year Member

Mar 30, 2005

4,749

95

134

Dec 1, 2005

#2

• Dec 1, 2005

• #2

You should go through it assuming that it did not have maint. And yes, this includes replacing plugs.

Also, clean MAF and reset PCM.

You need to do some serious searching and researching.

Start by reading every word on this website:
www.bullittarchive.com

 

bham_gt

New Member

Sep 21, 2004

94

0

0

Birmingham, AL

Dec 1, 2005

#3

• Dec 1, 2005

• #3

Maybe run some fuel injector cleaner through it too.

 

K

Kilgore Trout

Fried or Broiled ?

10 Year Member

Mar 30, 2005

4,749

95

134

Dec 1, 2005

#4

• Dec 1, 2005

• #4

Yeah, Seafoam...

 

jasonh_86

I

May 20, 2005

1,156

2

48

Arkansas

Dec 1, 2005

#5

• Dec 1, 2005

• #5

Seamfoam!

 

2

2002GreyGT

Member

Jun 10, 2003

481

0

16

Raleigh, NC

Dec 1, 2005

#6

• Dec 1, 2005

• #6

I have heard seafoam is good but never used it yet.

I suggest do a really good maintence on it.

Plug change
clean MAF
Fuel system cleaning
Oil change - duh?
Air filter? If its a K&N they may have over oiled it.
Reset PCM!

After running my GT hard for a while I'll get a rough ilde but goes away.

~K

 

topgunz_1

Member

Oct 6, 2004

100

0

16

Louisiana

Dec 1, 2005

#7

• Dec 1, 2005

• #7

its a mustang, not a lincoln. brand new GT's i've driven have a bit of viration

 

Green Flea

New Member

Mar 17, 2004

28

0

0

California

Dec 1, 2005

#8

• Dec 1, 2005

• #8

If you have the A/C on, it changes the rpm a little to run the compressor. It's Normal.

 

V

VividDreams

New Member

Jan 2, 2005

200

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0

Lebanon County, PA

Dec 1, 2005

#9

• Dec 1, 2005

• #9

yeah it sounds normal to me too. but i guess a quick tune up like abouve noted couldnt really hurt anything...

 

HoustonGT

Gilded Gelding

Apr 6, 2003

1,418

0

0

Houston

Dec 1, 2005

#10

• Dec 1, 2005

• #10

Aight, thanks guys. I knew i had to run some injector cleaner and change plugs, just makin sure it wasn't anything major. I guess my 99GT just ran a bit smoother

 

0

03greygt

New Member

Jul 30, 2005

5

0

2

Dec 1, 2005

#11

• Dec 1, 2005

• #11

Do you have a k&n? If you do the oil from the filter gets in the mass airflow sencor and makes a rough idle. I suggest cleaning the sensor.

 

S

Smokeurhonda

New Member

May 1, 2003

457

0

0

Maryland

Dec 1, 2005

#12

• Dec 1, 2005

• #12

Dude...it's normal...mine does the same ****. Don't worry bout it.

 

S

SLY GT

New Member

Oct 5, 2005

105

0

0

Dec 1, 2005

#13

• Dec 1, 2005

• #13

Smokeurhonda said:

Dude...it's normal...mine does the same ****. Don't worry bout it.

Click to expand...

ditto

 

DBMSTNG

I fantasize about it being BIG!

Founding Member

Apr 23, 2002

2,120

0

56

not quite here

Dec 1, 2005

#14

• Dec 1, 2005

• #14

if you tune it up and it drives fine with no power loss, everything should be ok. if it was a plug or COP, you'd feel it during normal driving.

also, check to see if the previous owner put in aftermarket motor mounts.

 

streetstang03

unModerator

Dec 27, 2003

0

1

0

the dark side of the moon/home of the 1999, 2003,

Dec 1, 2005

#15

• Dec 1, 2005

• #15

as long as it isnt bogging, it prob. isnt something too major.

 

stangGT97

New Member

Dec 22, 2004

1,299

1

0

Boston area, MA

Dec 1, 2005

#16

• Dec 1, 2005

• #16

ya mine is a little rough at idle. i changed the plugs and it got worse, go figure, the plugs like to loosen themselves