1998 E-350 Idle Air Code P0505 - Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars
Ford Forum Ford Forum

» Auto Insurance
» Featured Product
ยป Wheel & Tire Center

Go Back   Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars > Ford Trucks | Utes | Vans |SUVs | Crossovers > Ford E-Series Trucks
Register Home Forum Active Topics Photo Gallery Auto Loans Garage Mark Forums Read Auto Escrow

Ford E-Series Trucks Forum for discussion of the Ford E-Series Trucks.

FordForums.com is the premier Ford Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
Old 09-18-2007, 17:50   #1 (permalink)
Registered User
 
Join Date: Sep 2007
Posts: 1
1998 E-350 Idle Air Code P0505

Hi everyone, I was hoping someone could shed some light on an on going problem I seem to be having with my 98 E-350 service truck.
The truck started dying after starting it up about 9 months ago and the CEL was on.
If you hold the pedal down to increase the idle it will stay running but when you let it idle down it dies again.
I had the code pulled which was a P0505 indicating an idle air control problem. A vehicle tech friend who lived here at the time helped me with it and when we noticed the engine was actually acting up,... that if we rapped on the idle air control valve the engine would instantly idle on it's own.
I replaced the IAC valve and had the codes cleared.
The truck ran fine for about a month and then it started doing the same thing again once in a while. I lived with it since it was so intermittant, but then it became worse. Once again the CEL light was on and I had the same code P0505.
I replaced the IAC valve again thinking I might have had a bad one and the engine ran fine again for another 2 months. Now it's doing it again and it is getting more frequent. It will do it when the engine is cold or after it's hot. Sometimes if I gun the throttle it clears right up like nothing happened. Other times not. Sometimes I'm forced to keep a foot on the throttle with the idle up and one on the brake so I can keep it going while I put it in drive and get moving. When I slow to a stop the ignition light on the dash comes on indicating the engine has died and I lose my power brakes. it's getting really annoying and kinda dangerous. Any thoughts or help are appreciated.
Thanks.
Chris
Scrid is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 02-17-2008, 07:59   #2 (permalink)
Registered User
 
kaboom10's Avatar
 
Join Date: Jan 2008
Posts: 130
Garage
Re: 1998 E-350 Idle Air Code P0505

Basically you need fuel, spark and air to run your engine. You're looking at one of 3 possible problems. What is the driveability like? Do you encounter any time a non-smooth throttle response? obtw check all the connections and wiring to your IAC motor as that is most suspect. Clean and inspect the connections closely for damage and/or dirt. You didn't wash the engine did you?
__________________
02 F-150 FX4 w/Baer rotors,carbon kevlar pads,SS lines,remote coolers/filters. IAS shocks,LiveWire tuned by me.
kaboom10 is offline   Reply With Quote
Sponsored Links
Advertisement
 
Reply

  Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars > Ford Trucks | Utes | Vans |SUVs | Crossovers > Ford E-Series Trucks



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Powered by vBadvanced CMPS v3.2.2

All times are GMT -7. The time now is 10:48.



Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO 3.6.0
Garage Plus vBulletin Plugins by Drive Thru Online, Inc.