Mustang won't stay running
matt123
10-17-2004, 11:15 AM
I have a 1999 Mustang GT, bought it new and never had a problem with it. All of the sudden it will start and rapidly die. If I press the gas pedal after starting I can keep it running and it runs smooth. As soon as I let off the gas it pretty much dies right away. All ignition connections / vacuum lines look good. Not sure where to start.... any ideas? Thanks.
-Jayson-
10-17-2004, 11:29 AM
F-Found
O-On
R-Road
D-Dead
O-On
R-Road
D-Dead
383PhoenixAm
10-17-2004, 02:06 PM
F-Found
O-On
R-Road
D-Dead
...yes
It sounds like a bad sensor, but I'm not sure I could help ya there cause I don't know what kind of loop ford uses. You'd have better luck finding a mustang loyal forum somewhere.
O-On
R-Road
D-Dead
...yes
It sounds like a bad sensor, but I'm not sure I could help ya there cause I don't know what kind of loop ford uses. You'd have better luck finding a mustang loyal forum somewhere.
sierrap615
10-17-2004, 05:15 PM
i know zip of fords, but in general:
check the throttle body for carbon build-up, check the IAC too. if dirty, spray with sensor-safe carb and choke cleaner(even if its EFI).
if you have a multimeter/voltmeter, check system voltage.
any check engine light/battery light?
check the throttle body for carbon build-up, check the IAC too. if dirty, spray with sensor-safe carb and choke cleaner(even if its EFI).
if you have a multimeter/voltmeter, check system voltage.
any check engine light/battery light?
RandomTask
10-19-2004, 10:18 AM
I don't think the throttle body would be loaded with carbon? But faulty MAF or TPS could be a culprit
psychorallyfreak
10-19-2004, 11:09 AM
That makes sense...
Or maybe (just maybe) bad gas...
I've had a similar problem with a different car...but, damn my memory, I don't remember the problem/solution...
Or maybe (just maybe) bad gas...
I've had a similar problem with a different car...but, damn my memory, I don't remember the problem/solution...
Racincc85
10-21-2004, 02:18 PM
Originally Posted by -Jayson-
F-Found
O-On
R-Road
D-Dead
spell it backwards and you get
D-Driver
R-Returned
O-On
F-Foot
It sounds like you have a bad Idle Air Control valve. Fords were nortorious for having these go bad. It sounds like it is sticking closed.
F-Found
O-On
R-Road
D-Dead
spell it backwards and you get
D-Driver
R-Returned
O-On
F-Foot
It sounds like you have a bad Idle Air Control valve. Fords were nortorious for having these go bad. It sounds like it is sticking closed.
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