93 Ranger runs rough, EEC codes 335, 326 - Ford Truck Enthusiasts Forums
 

Go Back   Ford Truck Enthusiasts Forums > Small Chassis Trucks > Ranger & B-Series
Log In 


Ranger & B-Series All Ford Ranger and Mazda B-Series modelsSPONSORED BY:

93 Ranger runs rough, EEC codes 335, 326

Reply
 
 
 
 
LinkBack Thread Tools Search this Thread
  #1  
Old 08-23-2001, 12:39 PM
tstrickland tstrickland is offline
New User
 
Join Date: Aug 2001
Posts: 2
tstrickland is starting off with a positive reputation.
93 Ranger runs rough, EEC codes 335, 326

My 1993 3.0L V6 2WD Ranger is running rough on the road, but not too bad at idle. I first thought it was related to the transmission because I recently had a Torque Converter lock-up (diagnosed by Ford) that mysteriously fixed itself before they could determine the root cause. But I checked the EEC codes yesterday and got a KOEO 335 (EGR feedback signal out of range) and a KOER 326 (Pressure Feedback EGR shows low pressure EGR not seating). Will an EGR problem cause the vehicle to run rough? Should I take the shotgun approach and replace the EGR valve, or are there additional diagnostic steps I should take? Could this be a problem with the EGR Vacuum Regulator as well, or the PCM?

I have never tried to trouble-shoot an EGR system, so any practical advice would be appreciated. I do have the Haynes Repair Manual for 1993-2000 Ranger pick-ups.

thanks.
Reply With Quote
  #2  
Old 08-24-2001, 09:30 PM
thelonerangerxlt's Avatar
thelonerangerxlt thelonerangerxlt is offline
Posting Guru
 
Join Date: Aug 2000
Posts: 1,984
thelonerangerxlt is starting off with a positive reputation.
93 Ranger runs rough, EEC codes 335, 326

I would try removing the EGR valve and cleaning the pintle area out before starting to replace parts. The EGR's tend to get clogged up with carbon and then start sticking. Also check the EGR valve for a ruptured diaphram. You can simply suck on the vacuum hose going to it and see if it will hold vacuum. Also check all of the vacuum lines going from the EGR to the engine, for a leak.

Good luck.
__________________
00 Explorer Sport 4x2, 4.0 ohv, 5R55E, 3.55 diff

78 Bronco Ranger XLT, 351M, 4-sp, Trailer Special
Reply With Quote
  #3  
Old 08-24-2001, 09:35 PM
thelonerangerxlt's Avatar
thelonerangerxlt thelonerangerxlt is offline
Posting Guru
 
Join Date: Aug 2000
Posts: 1,984
thelonerangerxlt is starting off with a positive reputation.
93 Ranger runs rough, EEC codes 335, 326

__________________
00 Explorer Sport 4x2, 4.0 ohv, 5R55E, 3.55 diff

78 Bronco Ranger XLT, 351M, 4-sp, Trailer Special
Reply With Quote
 
 
 
Reply


Similar Threads
Thread Thread Starter Forum Replies Last Post
86 Ranger 2.9 L-Rough, Rich Idle and Code 33 issues bluestreak1979 Ranger & B-Series 5 08-21-2006 08:48 PM
85 Ranger 2.8 no vacuum to egr valve cctrader2000 Ranger & B-Series 2 08-26-2004 07:47 AM
95 explorer DTC 648 sbelini Clutch, Transmission, Differential, Axle & Transfer Case 2 07-27-2004 09:45 PM
Code 556 ... anyone? joelb Explorer, Sport Trac, Mountaineer & Aviator 4 07-17-2002 06:39 PM
95 Explorer Sport - Code 335 jbroz Explorer, Sport Trac, Mountaineer & Aviator 8 02-16-2001 09:32 AM


Go Back   Ford Truck Enthusiasts Forums > Small Chassis Trucks > Ranger & B-Series

Tags
1993, 1994, 2003, 30, 335, 93, code, egr, feedback, ford, iswas, poor, range, ranger, rough, running, runs, signal, v6

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 Off
Trackbacks are On
Pingbacks are On
Refbacks are On

Forum Jump



All times are GMT -5. The time now is 03:29 PM.

 

Powered by vBulletin® Version 3.8.7 AC2
Copyright ©2000 - 2015, Jelsoft Enterprises Ltd.
Advertising - Terms of Use - Privacy Statement - Terms of Service - 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