Go Back   Ford Truck Enthusiasts Forums > Performance, Engines & Troubleshooting > Ford V6 > 2.6, 2.8, 2.9, 4.0 & SOHC 4.0 V6
Sign in using an external account
Register Forgot Password?


Reply
 
 
 
 
LinkBack Thread Tools Search this Thread
  #1  
Old 02-09-2005, 04:52 PM
FlyMX FlyMX is offline
New User
 
Join Date: Jan 2005
Posts: 1
FlyMX is starting off with a positive reputation.
95 Ranger 4.0 Idle problems

My 95 ford ranger 4.0L idles rough, usually at stoplights. It only does it when the motor is completely warm, and its intermittent. Ive checked plugs, wires, AF, FF, IAC, MAF, EGR, PCV, purge solenoid, and looked closely for vacuum leaks. I checked the evaporative purge solenoid by disconnecing and plugging it from the intake manifold. Still have the same problem. Also the check engine light is on with codes

P1444 purge valve solinoid output low
and also lean bank 1 and 2.

Any help would be appreciated.
Reply With Quote
  #2  
Old 02-09-2005, 09:43 PM
Rockledge's Avatar
Rockledge Rockledge is offline
Post Fiend
 
Join Date: Jan 2003
Location: Connecticut
Posts: 9,488
Rockledge is a splendid one to beholdRockledge is a splendid one to beholdRockledge is a splendid one to beholdRockledge is a splendid one to beholdRockledge is a splendid one to beholdRockledge is a splendid one to beholdRockledge is a splendid one to behold
DTC P1444: PURGE FLOW SENSOR LOW VOLTAGE TO PCM

Continuous Memory Diagnostic Trouble Code (DTC) P1444 indicates that Self-Test has detected a PF sensor circuit input below the minimum.

Possible causes:

- PF sensor circuit short to PWR GND.
- VPWR open circuit.
- Damaged purge flow (PF) sensor.
- Damaged PCM

So it would appear to be a bad PF sensor or a problem with the circuit.

Regarding the lean codes on both banks, those can be caused by several things, you are on the right track looking for vacuum leaks, maybe you can do the propane gas trick where you apply the gas all around the upper engine area; if there's a leak the gas will get sucked in and the idle will even out and/or increase. You should also think about re-torquing the upper and lower intake bolts, sometimes the gaskets are sources of air leaks. Change the fuel filter if it has been a while, and clean the MAF sensor:

http://www.ford-trucks.com/forums/sh...hreadid=126093

P.S. Welcome to the FTE!
__________________
'98 Ranger XLT 4x4 (4.0L)
'94 Taurus SHO (MTX)
'03 Sable LS (Duratec)
Reply With Quote
Old 02-09-2005, 09:43 PM
 
 
 
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
Truck throwing code 157 Snoopdale Ranger & B-Series 8 04-08-2012 12:18 AM
P1451 on 2000 Explorer 5.0 jsmorris Explorer, Sport Trac, Mountaineer & Aviator 7 12-03-2010 07:33 AM
Rough idle amosjk Ranger & B-Series 7 07-13-2008 08:05 AM
96 Ranger EVAP Purge Valve Fault dj8667 3.0L V6 4 04-18-2004 09:36 AM
95 Ranger 4.0L 4x4 Supercab - PROBLEM rdgerunrpa Ranger & B-Series 6 06-04-2002 10:12 PM


Go Back   Ford Truck Enthusiasts Forums > Performance, Engines & Troubleshooting > Ford V6 > 2.6, 2.8, 2.9, 4.0 & SOHC 4.0 V6

Tags
40, 95, bank, code, explorer, ford, idle, intake, intermittent, lean, manifold, p1444, ranger, sport, surge

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


Participate In The Forums

Create new posts and participate in discussions. It's free!

Sign Up »





All times are GMT -5. The time now is 07:23 PM.


Powered by vBulletin® Version 3.8.7 AC1
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
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. Ford® is a registered trademark of the Ford Motor Company.

vbulletin Admin Backup