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Problem on Dads 95 F150

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Old May 20, 2009 | 09:10 PM
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Problem on Dads 95 F150

Ok my dad has a 95 F150 w/5.0. If he has it sitting in park and revs it up to around 3000 rpms then he let off and the truck idled back down and it died on him. He said it happens when the motor is warmed up or cold. It doesnt matter. Any other time if its in drive it runs perfect. He thinks that a idle control is going bad. Not sure. Any ideas on the problem and a fix to it?
 
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Old May 20, 2009 | 11:20 PM
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Buuuuuuuuuummmmmmmmmmmmmmmppppppppppp!
 
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Old May 21, 2009 | 12:55 AM
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has the check engine light come on
 
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Old May 21, 2009 | 02:11 AM
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From: Easton,Ks
You need to run the KOER self-test and then see what the codes say.
But it sounds like he has a bad IAC valve.
 
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Old May 21, 2009 | 08:14 AM
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no the check engine light is not on. Thats what he was thinking is the IAC valve was going bad.
 
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Old May 22, 2009 | 09:54 AM
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I would grab some throttle body cleaner and give the IAC a good cleaning. It sometimes is too late for a cleaning....but I suspect you've got about a 50/50 chance. If that does not work I would try a new IAC.
Let us know how it turns out.
 
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Old May 22, 2009 | 10:06 AM
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i will. i think my dad is gonna go get a new IAC this afternoon. He doesnt really fool around with taking the time to clean it just to were he has to replace it 6 weeks later. he'd rather replace it now.
 
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Old May 22, 2009 | 01:08 PM
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don't get a cheap one.

i use the ford iac when i buy them.

reset computer after changing the iac.
 
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Old May 22, 2009 | 01:53 PM
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so we should unhook his battery after its changed to reset the computer? ok never wouldve thought of that. well it does make since though.
 
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Old May 22, 2009 | 04:45 PM
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From: Easton,Ks
You do not have to reset the computer after changing an actuator (IAC valve), only sensors.
Actuators are operated by the computer and sensors give information to the computer.
 
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Old May 22, 2009 | 04:50 PM
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Subford - I replaced my ECT sensor last week and reset CEL so codes don't show anymore. Should I have removed battery as a reset as well? It's running great without doing that.
 
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Old May 22, 2009 | 04:58 PM
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Originally Posted by MEDF150
Subford - I replaced my ECT sensor last week and reset CEL so codes don't show anymore. Should I have removed battery as a reset as well? It's running great without doing that.
Yes you should unhook the battery for at least 15 minutes after replacing a sensor to kill the learned memory. Then it will take about 10 miles for the computer to relearn all of the sensors and your driving habits and run right.
 
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