Serious Explorations Ford Explorer and Ranger Message Board
#1 Resource for Ford Explorer and Ranger Owners - By Enthusiasts, for Enthusiasts.


Ford Explorer Generation Guide

EF Swag Store 2015 Ford Explorer Forums Elite Membership Chat Room My Posts Reviews Explorer Photo Gallery
Go Back   Ford Explorer and Ranger Forums "Serious Explorations" > Ford Explorer Ranger Repair - Troubleshooting - Modifications & Detailing Forums > Under the Hood > Explorer, Ranger - Computers, Chips, Tuning > EEC V

Notices

P0301, P0302, P0303, P0172 and P0174 codes.

Reply
 
Thread Tools
Old 03-02-2011, 09:25 PM   #1
David704
stewd100@aol.com
stewd100@aol.com
 
Join Date: Mar 2011
Posts: 1

Vehicle Specs

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
(Original Poster)
P0301, P0302, P0303, P0172 and P0174 codes.

Hey Folks
I need some help. 2000 Explorer 4.0 s.o.h.c. I have codes 300 multi cylinder. 301,302,303 p0172 and p0174. I have changed the upper and lower intake gaskets. I have replaced the all 4 O2 sensors and fuel filter and checked pressure while driving stays around 65. Engine runs rough and check engine light flashes. If someone could offer any information I would be forever grateful.

Thanks
Dave
David704 is offline   Reply With Quote
( Join the Elite Explorers )

For only $20 per year you can become an Elite Explorer member. Explorer Forum has probably saved you that much already, and will continue to save you money as you learn how to diagnose and fix problems yourself, and learn which modifications really work without having to experiment on your own. Elite Explorer members can change the forum "styles" to eliminate most ads, including blue underlined links, and no ads on photos. Other benefits include the ability to store 1000 Private Messages, upload photo attachments directly to your posts and to our Photo Gallery and more. Join the Elite Explorers today.


Old 03-02-2011, 09:40 PM   #2
boominXplorer
Elite Explorer
Virginia Beach, Va
 
boominXplorer's Avatar
00 4x4 Mounty
 
Join Date: Sep 2002
Posts: 6,306

Vehicle Specs

Mentioned: 0 Post(s)
Tagged: 1 Thread(s)
Quoted: 39 Post(s)
Timing chain guides are gone and letting the chain slack causing missfires. You also can only get to the front one with the engine in the truck. To replace the rear chain guides you must pull the engine .




__________________
2002 F250 Crew Cab SB 7.3 Diesel 4x4 - 4" MBRP exhaust, AIH delete, SCT Livewire
2001 Ranger ext cab 4x4 - 5.0 swap, 4406, 35s, 4.88s and 9" lift
2007 Ford Focus ST Black - Stock DD
2002 Explorer 4dr for Parts
My eBay auctions
boominXplorer is offline   Reply With Quote
Old 03-02-2011, 09:41 PM   #3
lynchy wa
Down Under Beer Explorer
Albany, Western Australia
 
lynchy wa's Avatar
2004 XLT V6 4x4
 
Join Date: Sep 2009
Posts: 5,225

Vehicle Specs

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 4 Post(s)
G'day Dave, the only thing I can think of, (which isn't saying much) is cleaning the MAF sensor and throttle body (use the dedicated cleaner for each if you try this). You could also try searching for the problem's you're having in the search bar at the top of the page. Hope this help's.

Well Boomin know's, so disregard my bull s*** but welcome




__________________
Me-Greg Lynch,Henson Performance,half hornet scoop,matt black,Irvin bullbar,red heeler alarm(my dog),K&N,skid plate
2 1/2" exhaust,265/70/17 AT's,1.25" wheel spacers front,1" wheel spacers rear,CB+dual whips
My wagon Uma
lynchy wa is online now   Reply With Quote
Old 03-02-2011, 11:05 PM   #4
BrooklynBay
Brooklyn, NY
 
BrooklynBay's Avatar
88 89 93 95 96 Aerostars
 
Join Date: Nov 2005
Posts: 47,480

Vehicle Specs

Mentioned: 0 Post(s)
Tagged: 1 Thread(s)
Quoted: 153 Post(s)
Welcome to this forum! I've renamed your thread, and moved it into the EEC-V section.
BrooklynBay is offline   Reply With Quote
Old 03-03-2011, 05:38 AM   #5
swetrid
Reading Pa
2001 Eddie Bauer
 
Join Date: Sep 2010
Posts: 1,883

Vehicle Specs

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Sounds like it jumped time




__________________
Resident Ford Tech for the last 17 years, 2001 Eddie Bauer 5.0L, Cherry Bomb Cat back, 2010 Ecoboost Flex
swetrid is offline   Reply With Quote
Old 03-03-2011, 06:04 AM   #6
2000StreetRod
Greenville, SC
 
2000StreetRod's Avatar
2000 Sport SOHC 2WD
 
Join Date: May 2009
Posts: 7,534

Vehicle Specs

Mentioned: 7 Post(s)
Tagged: 0 Thread(s)
Quoted: 26 Post(s)
compression check

Misfire sources are: ignition, air/fuel ratio, compression. Your misfire codes are just for the cylinders in bank 1 (passenger side).

P0172 indicates bank 1 is too rich while P0174 indicates bank 2 is too lean. Make sure that your pre-cat O2 sensors for bank 1 and 2 are not cross connected (left sensor going to right PCM input, right sensor going to left PCM input).

I suggest that you perform a compression check to eliminate the right timing chain as a possible source of the misfires.
2000StreetRod is online now   Reply With Quote
Old 01-10-2012, 09:35 AM   #7
NJFord
NJ
2003 Sport Trac
 
Join Date: Jan 2010
Posts: 12

Vehicle Specs

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Ever resolve this? Having the same exact issue.... Cleared the 0171 and 0174 with a new PCV line but still getting the 030x's and a nice tapping


UPDATE: Pulled timing cover and passanger side tensioner/guide on my Crank to Jackshaft chain was wasted. Ordered a new one at dealer and hoping to put in tmrw. It appears from reading ALL OVER this site that P0300,1,2,3s are a result of timing chain issues be it a bad cassett, guide or tensioner. Look around if your having this issue. There are some awesome guides with pics to walk you through the job.

Last edited by NJFord; 01-18-2012 at 12:42 PM.
NJFord is offline   Reply With Quote
Reply



Suggest this thread to friends:



Join the "Elite Explorers" Today!



Search Explorer Forum


Top of Page

Thread Tools

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

Forum Jump


All times are GMT -5. The time now is 08:40 PM.



US Flag
We Support Our Troops!

Explore the site!


Copyright 2014 - 1996 Rick Horwitz Photography



Ford Motor Company is not involved in the management of this site in any way.



All tips on this site are for use at your own risk and discretion.

Modifying the suspension on any vehicle will cause changes to its handling characteristics.



Vendor Tools vBulletin Plugins by Drive Thru Online, Inc.