Go Back   Ford Truck Enthusiasts Forums > Performance, Engines & Troubleshooting > Other Ford Engines > 4 Cylinder Engines
Sign in using an external account
Register Forgot Password?


Welcome to Ford-Trucks Forums!
Welcome to Ford-Trucks.com.

You are currently viewing our forums as a guest, which gives you limited access to view most discussions and access our other features. By joining our community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join the Ford-Trucks Forums community today!





 
Reply
 
LinkBack Thread Tools Search this Thread
  #1 (permalink)  
Old 03-28-2006, 06:09 PM
prerunner prerunner is offline
Senior User
 
Join Date: Aug 2003
Posts: 128
prerunner is starting off with a positive reputation.
EGR valve positon sensor

Truck is a 1994 ford ranger 2.3l manual. It has about 200k miles. And uses the EGR position valve sensor with the resistor on top (I guess theres two kinds)

ok I am trying to fix a code 32 which is a out of range EGR valve. So i first checked to see if I had vacuum at the EGR and didnt. So I followed the hose to the EGR position sensor. Now When I disconnected the hoses from their it was wierd. I had perfect vacuum going to the EGR position sensor but as soon as the hose was connected to the sensor there was no pressure going from the sensor to the EGR. So I figured the EGR valve sensor must be leaking, bought another one, and put it in and still there is no pressure going to the EGR valve. What could cause this. Also is the power going into the EGR valve position sensor suppossed to control the sensor? What makes the sensor open and close the egr valve. Please help I need to pass smog. Thanks
Reply With Quote
  #2 (permalink)  
Old 03-30-2006, 11:12 AM
prerunner prerunner is offline
Senior User
 
Join Date: Aug 2003
Posts: 128
prerunner is starting off with a positive reputation.
come on nobody has any info that can help
Reply With Quote
  #3 (permalink)  
Old 04-01-2006, 05:54 AM
tomw tomw is offline
Postmaster
 
Join Date: Jan 2002
Location: suburban atlanta
Posts: 4,039
tomw has a very good reputation on FTE.tomw has a very good reputation on FTE.tomw has a very good reputation on FTE.
I don't know the 94 system, but the older ones had a vacuum valve system that applied some vacuum to open the EGR, and bled off vacuum to close it. The amount of vacuum adjusted the EGR valve opening, and the ECM would just hold the valve where it wanted, after applying some vacuum, and reading the EGR position sensor. The vacuum was applied and released by two solenoid valves, on the pass side under a plastic cover. One was the vent, to release the vacuum, and the other was the apply. if you have them. I haven't memorized the codes, but an out of range means, I believe, that the voltage returned to the ECM is not what it expects from a good position sensor. If you have loose wires or bad connections you may not be getting good readings to the ECM. You should be able to test the voltage by applying vacuum to the EGR diaphragm while you are reading the position sensor output.
tom
__________________
It's not how hard you work, it's how much you get done. Simplificate and add lightness
Reply With Quote
  #4 (permalink)  
Old 04-04-2006, 06:30 PM
prerunner prerunner is offline
Senior User
 
Join Date: Aug 2003
Posts: 128
prerunner is starting off with a positive reputation.
Well mine is sort of like that but my egr position sensor is right before the EGR valve. From the intake manifold the hose goes to the EGR position sensor then comes out from that into the EGR valve. I think ive figured it out though. I think its just b/c my damn truck wont get to normal temp so it stays in closed loop. When its doing the KOER test and the temp isnt at normal would it not use the EGR valve and throw that code.
Reply With Quote
  #5 (permalink)  
Old 04-05-2006, 06:29 AM
tomw tomw is offline
Postmaster
 
Join Date: Jan 2002
Location: suburban atlanta
Posts: 4,039
tomw has a very good reputation on FTE.tomw has a very good reputation on FTE.tomw has a very good reputation on FTE.
Well, given gas prices, I'd be putting a new thermostat on as quickly as I could. Then you'd be getting up to temp, and a lot sooner. Significantly less fuel consumed. Remember, Ford wanted to get these trucks the best mpg they could so as to compete with bowtie and horny critter, and help their CAFE numbers. They'd not put an extra nail or screw on these when they made them. They have teams trying to wring the last lock washer out of production costs... a thermostat is there for a reason.
tom
__________________
It's not how hard you work, it's how much you get done. Simplificate and add lightness
Reply With Quote
Old 04-05-2006, 06:29 AM
Reply

Go Back   Ford Truck Enthusiasts Forums > Performance, Engines & Troubleshooting > Other Ford Engines > 4 Cylinder Engines

Tags
94, bad, egr, ford, range, ranger, readings, sensor, truck, vaccuum, valve

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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 On
Trackbacks are On
Pingbacks are On
Refbacks are On
Forum Jump



All times are GMT -5. The time now is 10:42 PM.


Powered by vBulletin® Version 3.7.5
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
SEO by vBSEO 3.5.2 ©2010, Crawlability, Inc.
Advertising - Terms of Use - Privacy Statement - Jobs
This forum is owned and operated by Internet Brands, Inc., a Delaware corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford Motor Company or its related companies in any way. FordŽ is a registered trademark of the Ford Motor Company.

vbulletin Admin Backup