hzmeyer
Detroit
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I have a 1999 Pace Arrow with a Ford V-10 engine that gradually began stalling when I removed my foot from the gas pedal. Now, it won't start unless I slightly depress the pedal. Is the idle controlled by a simple screw adjustment or is it more complicated to increase idle speed?
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thomasinnv
where ever i stop
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Joined: 06/28/2008
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idle is controlled by ecm
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skipnchar
Topeka Kansas USA
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Joined: 12/17/2003
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Triton engines are computer controlled. Might want to check your PCV valve. If it's dirty it'll effect idling.
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mooreadventures
North Carolina
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Joined: 03/22/2004
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2 possilblities come to mind immediately based on the limited informaiton...
First is the fuel filter 0 if it has not been replaced in a while then it should be. The v10s are pretty fuel pressure senitive.
Second is the IAC - Idle Air Controller. They have been known to cause this type of issue. This is what the PCM uses to control the idle speed of the engine.
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pulsar
Lewisville, NC
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Move from Forum Technical Support to Tech Issues.
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btraptormd
Virginia
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The most common cause, if you do not have a check engine light on is a dirty throttle body. You need to remove the intake boot and clean the throttle plate and body with carburetor cleaner.
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blkfe
Nebraska
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btraptormd wrote:The most common cause, if you do not have a check engine light on is a dirty throttle body. You need to remove the intake boot and clean the throttle plate and body with carburetor cleaner.
I agree
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ernie1
Sacramento,California,USA
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Joined: 02/10/2004
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I also think it's the IAC. It could act up only periodically or fail totally. Mine drove me nuts. Get a new one and change it. It's pretty easy and you'll notice an adjusting screw also on it too.
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hzmeyer
Detroit
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The "check engine light" did come on. I borrowed an auto scanner from Auto Zone but could not find the plug under the dash. Any idea where it might be located? When I could not find the plug, I decided to try and start it one more time (after several days of it not starting). It would make and attempt to start then fail. After several tries, it would just crank. As a last resort, I put the pedal to the floor and it started. That's when I got the idea that the hard starting might be associated with the very slow idle speeds I have been encountering. After that first successful start, it would start every time if the pedal was slightly depressed. Is there no adjustment screw to force the idle to a little higher RPM? There really needs to be such a fail safe option as it has stalled many time while on the road. Not a nice thing in the mountains.
For what it's worth: In one week, I will have a prototype retarder brake installed on this vehicle. It consists of a water cooled disk brake linked to the drive shaft. Various braking efforts can be dialed in by the driver for descents of long mountain grades. If anyone is interested, I will be happy to report on how it works.
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btraptormd
Virginia
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The OBDII conector should be within 12 inches of the steering column. Is the light still on? The very first thing to do is clean the T-body. They all become dirty over time. This build up restricts air flow past the throttle plate which inturn causes low idle and stalling.
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