Still getting a P0174. Help! | Ford Explorer - Ford Ranger Forums - Serious Explorations

  • Register Today It's free! This box and some ads will disappear once registered!

Still getting a P0174. Help!

NHarris

Explorer Addict
Joined
May 31, 2010
Messages
3,338
Reaction score
6
City, State
Gillette, Wyoming
Year, Model & Trim Level
04 Wrangler, 08 Ranger
I recently replaced my O2 sensors about 1500-3000 miles ago and that took care of my P0174 code. Well it just came back. I am clueless at where to start as most vacuum leaks come as a P0171 and P0174. I have only the one code.

In case you don't know a P0174 is bank 2 too lean.

This is getting very frustrating as I've dropped a lot of money into fixing this issue and nothing is solving it... :mad:

Any help?
 
<

Join the Elite Explorers $20 Gets rid of the ads!

Elite Explorer members see no advertisements, no banner ads, no double underlined links, can add their own profile photo, upload photo attachments in all forums, and Media Gallery, create and save more private conversations, and more. Join Today. Your support is greatly appreciated.




Jlivi21

Member
Joined
November 8, 2011
Messages
18
Reaction score
0
City, State
Pennsylvania
Year, Model & Trim Level
1996 Ford Explorer
I'm having the same problem! I drive a '96 V6 OHV. It seems like I've tried just about everything! I've heard problems with the manifold gaskets leaking, so maybe that can help you out. If you already fixed the problem, I would love to know so I can fix mine up too!
 
<



NHarris

Explorer Addict
Joined
May 31, 2010
Messages
3,338
Reaction score
6
City, State
Gillette, Wyoming
Year, Model & Trim Level
04 Wrangler, 08 Ranger
I actually did just figure it out. The intake gaskets were bad and my replacement oxygen sensor was throwing the code. Replaced both of em and have been code free since.
 
<



Jlivi21

Member
Joined
November 8, 2011
Messages
18
Reaction score
0
City, State
Pennsylvania
Year, Model & Trim Level
1996 Ford Explorer
Awesome! I'm definitely going to give it a shot! It's pretty much the last option anyways!
 
<



NHarris

Explorer Addict
Joined
May 31, 2010
Messages
3,338
Reaction score
6
City, State
Gillette, Wyoming
Year, Model & Trim Level
04 Wrangler, 08 Ranger
Well I cursed myself. Tonight it came back :( Im starting to have an extreme dislike towards Explorers. They never can be fixed..... :mad:
 
<



<



NHarris

Explorer Addict
Joined
May 31, 2010
Messages
3,338
Reaction score
6
City, State
Gillette, Wyoming
Year, Model & Trim Level
04 Wrangler, 08 Ranger
<



swshawaii

Elite Explorer
Joined
April 3, 2009
Messages
9,624
Reaction score
570
City, State
Kailua-Oahu, Hawaii
Year, Model & Trim Level
'05 Sport Trac XLS (RWD)
It's not difficult to inspect the underside of the PCV elbow.
Why not check? Sounds like you've done everything else.
I've heard on occasion a faulty coil will throw a P0171/174. GL
 
<



NHarris

Explorer Addict
Joined
May 31, 2010
Messages
3,338
Reaction score
6
City, State
Gillette, Wyoming
Year, Model & Trim Level
04 Wrangler, 08 Ranger
As far as checking the pcv elbow, Ive sprayed carb cleaner on there to see if I could get the motor to surge. I did check it out 800 miles ago when I did new intake manifold gaskets.
 
<



Jlivi21

Member
Joined
November 8, 2011
Messages
18
Reaction score
0
City, State
Pennsylvania
Year, Model & Trim Level
1996 Ford Explorer
Maybe the intake manifold bolts came loose. I know that I had mine replaced when I had my head gaskets done, and every other gasket. I guess they can unwind and loosen themselves, so I would check that out too since you changed your intake gaskets. Mine is heading to the garage soon to have them retourqued, so fingers crossed that P0174 is gone for good!
 
<



swetrid

Explorer Addict
Joined
September 30, 2010
Messages
1,888
Reaction score
3
City, State
Reading Pa
Year, Model & Trim Level
1999 Eddie Bauer
Ford has tsb for reprogramming pcm for lean or rich codes. This may be your fix.
Printable View (6 KB)
TSB
04-22-11 MALFUNCTION INDICATOR LAMP (MIL) ILLUMINATED WITH DIAGNOSTIC TROUBLE CODES (DTC'S) P0172, P0175, P0171 AND/OR P0174 - 4.0L SOHC ENGINE - VEHICLES BUILT PRIOR TO 10/4/2004

Publication Date: October 28, 2004

FORD: 2004-2005 Explorer
MERCURY: 2004-2005 Mountaineer


This article supersedes TSB 04-19-7 to update the vehicle model years and DTC information.

ISSUE:
Some 2004-2005 Explorer 4dr/Mountaineer vehicles built prior to 10/4/2004 with the 4.0L SOHC engine, may exhibit the MIL illuminated with one or more of the following DTC's:

P0172 - SYSTEM TOO RICH (BANK 1)
P0175 - SYSTEM TOO RICH (BANK 2)
P0171 - SYSTEM TOO LEAN (BANK 1)
P0174 - SYSTEM TOO LEAN (BANK 2)

ACTION:
Reprogram the powertrain control module (PCM) to the latest calibration using WDS release B33.10 or higher. Calibration files may also be obtained at www.motorcraft.com.


WARRANTY STATUS:
Eligible Under Provisions Of New Vehicle Limited Warranty Coverage And Emissions Warranty Coverage

OPERATION DESCRIPTION TIME
042211A Check For Diagnostic Trouble Codes And Reprogram Powertain Control Module 0.4 Hr.

DEALER CODING
BASIC PART NO. CONDITION CODE
RECALEM 04

--------------------------------------------------------------------------------

NOTE: The information in Technical Service Bulletins is intended for use by trained, professional technicians with the knowledge, tools, and equipment to do the job properly and safely. It informs these technicians of conditions that may occur on some vehicles, or provides information that could assist in proper vehicle service. The procedures should not be performed by "do-it-yourselfers". Do not assume that a condition described affects your car or truck. Contact a Ford, Lincoln, or Mercury dealership to determine whether the Bulletin applies to your vehicle. Warranty Policy and Extended Service Plan documentation determine Warranty and/or Extended Service Plan coverage unless stated otherwise in the TSB article. The information in this Technical Service Bulletin (TSB) was current at the time of printing. Ford Motor Company reserves the right to supercede this information with updates. The most recent information is available through Ford Motor Company's on-line technical resources.

Copyright © 2004 Ford Motor Company
 
<



tmaher

Active Member
Joined
September 15, 2008
Messages
67
Reaction score
0
City, State
wakefield RI
Year, Model & Trim Level
2003 xlt 4wd
It's not difficult to inspect the underside of the PCV elbow.
Why not check? Sounds like you've done everything else.
I've heard on occasion a faulty coil will throw a P0171/174. GL

what he said. seems like this is a common problem. it is so easy to fix.
 
<



NHarris

Explorer Addict
Joined
May 31, 2010
Messages
3,338
Reaction score
6
City, State
Gillette, Wyoming
Year, Model & Trim Level
04 Wrangler, 08 Ranger
Turns out it was a dirty MAF sensor. I paid ford $53 to figure it out :(
 
<



swshawaii

Elite Explorer
Joined
April 3, 2009
Messages
9,624
Reaction score
570
City, State
Kailua-Oahu, Hawaii
Year, Model & Trim Level
'05 Sport Trac XLS (RWD)
Cleaning the IAC, throttle body, and MAF, should be considered routine maintenance.
If you got a $53 diagnostic from the dealer, consider yourself lucky. Glad you solved it.
 
<



Top