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  • 1996 - 2004 SN95 Mustang -General/Talk-
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RPM's drop intermitantly at idle

  • Thread starter Thread starter BensBACobra
  • Start date Start date Dec 7, 2005

BensBACobra

New Member
Dec 6, 2004
73
0
0
Mobile, Alabama
Dec 7, 2005
#1
  • Dec 7, 2005
  • #1
I'm sure there are tons of you that have experienced this problem. its hard to take it to a shop b/c it just doesnt do often enough that its going to happen when the mechanic drives it (my luck). so what do you guys think is the problem?
 

BensBACobra

New Member
Dec 6, 2004
73
0
0
Mobile, Alabama
Dec 11, 2005
#2
  • Dec 11, 2005
  • #2
you bastards never reply to my posts!
 

BensBACobra

New Member
Dec 6, 2004
73
0
0
Mobile, Alabama
Jan 1, 2006
#3
  • Jan 1, 2006
  • #3
SCREW YOU ALL!!! YOU GUYS REPLY TO THE DUMBEST NEWBIE POSTS BUT WHEN A MEMBER HAS A LEGITAMATE PROBLEM, THERE ARE TONS OF VIEWS BUT NO REPLIES. ALL YOU GUYS DO IS POST PICS OF YOUR CARS AND TALK ABOUT HOW TO BEAT LS1'S. I AM SICK OF THIS FORUM!
 

The Factor

New Member
Jul 12, 2003
1,485
0
0
beaverton,oregon
Jan 1, 2006
#4
  • Jan 1, 2006
  • #4
Heres one more view for you
 
U

Uncle Meat

Banned
Jun 13, 2002
0
1
0
Prattville, Alabama
Jan 1, 2006
#5
  • Jan 1, 2006
  • #5
BensBACobra said:
SCREW YOU ALL!!! YOU GUYS REPLY TO THE DUMBEST NEWBIE POSTS BUT WHEN A MEMBER HAS A LEGITAMATE PROBLEM, THERE ARE TONS OF VIEWS BUT NO REPLIES. ALL YOU GUYS DO IS POST PICS OF YOUR CARS AND TALK ABOUT HOW TO BEAT LS1'S. I AM SICK OF THIS FORUM!
Click to expand...
Did you ever think that maybe we don't have a clue as to what's causing your problem? Your description of the symptoms was pretty slim so there wasn't a lot for us to go on. Do you have an aftermarket TB installed by chance? Have you checked the TPS voltage?

U.M.
 

TheCrazy1

New Member
Dec 8, 2003
70
0
0
Jan 4, 2006
#6
  • Jan 4, 2006
  • #6
I have a 98 and it would do that sometimes. It was worst at operating temperature after I'd back up and stop. The engine would stall most of the time. It's gotten a lot better since I changed my coil packs and the mass air flow sensor. Every now and then the idle seems to dip a bit low for no apparent reason, but it fixed the stalling. I would suggest checking the TPS as Uncle Meat said as well. Are your spark plugs gapped properly?
 
C

chuckstang95

Member
Nov 1, 2004
138
0
16
Boston
Jan 4, 2006
#7
  • Jan 4, 2006
  • #7
iac possibly? mine does this too now but i think it may be fuel related with me or my maf probably as i have a new iac valve already, who ever knows
 

BensBACobra

New Member
Dec 6, 2004
73
0
0
Mobile, Alabama
Jan 9, 2006
#8
  • Jan 9, 2006
  • #8
TheCrazy1 said:
I have a 98 and it would do that sometimes. It was worst at operating temperature after I'd back up and stop. The engine would stall most of the time. It's gotten a lot better since I changed my coil packs and the mass air flow sensor. Every now and then the idle seems to dip a bit low for no apparent reason, but it fixed the stalling. I would suggest checking the TPS as Uncle Meat said as well. Are your spark plugs gapped properly?
Click to expand...


that is EXACTLY what is happening, when i back up and stop is usually when it does it. it also does it when i am in traffic and engine temp gets hot enough to make the fan come on, then the idle will drop. mine has never stalled however.
 
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