I've been bit by the CEL bug... GRRRRR! - Ranger-Forums - The Ultimate Ford Ranger Resource


4.0L OHV & SOHC V6 Tech General discussion of 4.0L OHV and SOHC V6 Ford Ranger engines.

Reply
 
LinkBack Thread Tools Search this Thread
  #1  
Old 05-22-2009
TheBearJeweler's Avatar
Member
Thread Starter
iTrader: (18)
 
Join Date: Oct 2007
Location: Arkansas
Posts: 3,179
I've been bit by the CEL bug... GRRRRR!

Ok.... I got code p0401- insufficient EGR flow... Also got lean bank codes po171 and po174... I replaced EGR valve, EGR Flow sensor and called everyone I knew. Still got a check engine light... My truck is an 02 4.0 with 42,000 miles... WTF!!!!! What else could it be? I have a cold air intake and the rest of the truck is stock... I'm taking back the sensor and EGR valve tomorrow and replacing original. Any Ideas?
Reply With Quote
  #2  
Old 05-22-2009
Member
iTrader: (6)
 
Join Date: Mar 2008
Location: San Jose, CA
Posts: 822
My check engine light went off too and my scan gauge dosn't work any more! Damn can't check codes. Hope you can fix your problem.
Reply With Quote
  #3  
Old 05-22-2009
TheBearJeweler's Avatar
Member
Thread Starter
iTrader: (18)
 
Join Date: Oct 2007
Location: Arkansas
Posts: 3,179
Quote:
Originally Posted by FRXLT View Post
My check engine light went off too and my scan gauge dosn't work any more! Damn can't check codes. Hope you can fix your problem.
I think I have a vacuum leak.... F it.... Ill take it to ford and let them turkeys fix it. LOL
Reply With Quote
  #4  
Old 05-22-2009
Member
iTrader: (6)
 
Join Date: Mar 2008
Location: San Jose, CA
Posts: 822
Could your MAF be dirty? Are you using an oiled intake filter?
Reply With Quote
  #5  
Old 05-22-2009
Jimmeh's Avatar
Member
iTrader: (1)
 
Join Date: Dec 2007
Location: Columbia Falls, MT
Posts: 3,224
Did you reset your computer?
Reply With Quote
  #6  
Old 05-22-2009
TheBearJeweler's Avatar
Member
Thread Starter
iTrader: (18)
 
Join Date: Oct 2007
Location: Arkansas
Posts: 3,179
Quote:
Originally Posted by FRXLT View Post
Could your MAF be dirty? Are you using an oiled intake filter?
ummmm its a little dry... uh oh
Reply With Quote
  #7  
Old 05-22-2009
TheBearJeweler's Avatar
Member
Thread Starter
iTrader: (18)
 
Join Date: Oct 2007
Location: Arkansas
Posts: 3,179
Quote:
Originally Posted by Jimmeh View Post
Did you reset your computer?
yup... twice now... no actually 3 times... My poor CPU is getting Alzheimer's lol
Reply With Quote
  #8  
Old 05-22-2009
Jimmeh's Avatar
Member
iTrader: (1)
 
Join Date: Dec 2007
Location: Columbia Falls, MT
Posts: 3,224
Electronics cleaner. Should be about $5.

I don't think it's your MAF, or you would get that code first. But try cleaning it and other sensors anyway.
Reply With Quote
  #9  
Old 05-22-2009
TheBearJeweler's Avatar
Member
Thread Starter
iTrader: (18)
 
Join Date: Oct 2007
Location: Arkansas
Posts: 3,179
Quote:
Originally Posted by Jimmeh View Post
Electronics cleaner. Should be about $5.

I don't think it's your MAF, or you would get that code first. But try cleaning it and other sensors anyway.
thanks dude. Im trying that tomorrow... Its getting Seafoamed with new plugs and an oil change too! woohoo!
Reply With Quote
  #10  
Old 05-23-2009
TheBearJeweler's Avatar
Member
Thread Starter
iTrader: (18)
 
Join Date: Oct 2007
Location: Arkansas
Posts: 3,179
Anyone? Sniff sniff....
Reply With Quote
  #11  
Old 05-23-2009
Toreador4x4's Avatar
Member
iTrader: (6)
 
Join Date: Apr 2007
Location: Livonia, MI
Posts: 3,958
on the right side of your intake, there is a vac line that runs from the back of the motor to right by the throttle body, the upper radiator hose rubs on this elbow and rubs through. get a can of carb clean when the motor is running, idling, and see if the rpm changes depending on where you spray. spray around that line or remove it and inspect it and see if there is a problem with it. this would cause your lean code but im not sure about your EGR code, could be the DPFE sensor if i had to guess

Last edited by Toreador4x4; 05-31-2009 at 05:42 PM.
Reply With Quote
  #12  
Old 05-23-2009
Rangerguy's Avatar
Member
 
Join Date: Feb 2008
Location: California
Posts: 1,120
Quote:
Originally Posted by Toreador4x4 View Post
on the left side of your intake, there is a vac line that runs from the back of the motor to right by the throttle body, the upper radiator hose rubs on this elbow and rubs through. get a can of carb clean when the motor is running, idling, and see if the rpm changes depending on where you spray. spray around that line or remove it and inspect it and see if there is a problem with it. this would cause your lean code but probably not your EGR code, that is most likely the DPFE sensor if i had to guess
X2
Reply With Quote
  #13  
Old 05-23-2009
TheBearJeweler's Avatar
Member
Thread Starter
iTrader: (18)
 
Join Date: Oct 2007
Location: Arkansas
Posts: 3,179
I have done everything now... reset codes with scanguage... lets all hope and pray...
Reply With Quote
  #14  
Old 05-23-2009
Smakes's Avatar
Member
iTrader: (5)
 
Join Date: Nov 2008
Location: nowhere
Posts: 235
you need tojust buy a new truck and prerunner the **** out of it
Reply With Quote
  #15  
Old 05-23-2009
jtslmn720's Avatar
RF Veteran
iTrader: (1)
 
Join Date: Oct 2004
Location: Kent State, Kent Ohio
Posts: 7,367
happened 3 times to me. I dont know if your year has a DPFE sensor or not but i replaced that as well as the EGR and no light since
Reply With Quote
  #16  
Old 05-23-2009
TheBearJeweler's Avatar
Member
Thread Starter
iTrader: (18)
 
Join Date: Oct 2007
Location: Arkansas
Posts: 3,179
Quote:
Originally Posted by jtslmn720 View Post
happened 3 times to me. I dont know if your year has a DPFE sensor or not but i replaced that as well as the EGR and no light since
did both... no luck.... seafoaming tonight..... then new plugs and vacuum lines...
Reply With Quote
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Got bit by the full size bug! rangerboy101 Snapshots 26 06-05-2009 11:36 PM
Gotten bit by the "get rid of your ranger" bug... BigRedDog General Ford Ranger Discussion 49 06-04-2009 09:54 PM
Ranger VS Dakota Collision GRRRRR Blackonblackfx4 Exterior Semi-Tech 32 05-13-2009 08:36 PM
Bit by the mod bug again Satan Jamez 2.9L & 3.0L V6 Tech 11 04-09-2009 10:03 AM
I've had it......cyberwhite lights....grrrrr rangerkidSHSU Exterior Semi-Tech 5 05-22-2006 10:23 PM


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 Off
Pingbacks are Off
Refbacks are Off



All times are GMT -6. The time now is 05:48 AM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.