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 > 1991 - 1994 Explorer Ranger Navajo 1st Generation > Stock 1991 - 1994 Explorers

Notices

Stock 1991 - 1994 Explorers For questions related to the base Ford Explorer. Problem solving, maintenance, TSB, service bulletins, owner reviews, specifications. No modification questions.

Glowing exhaust manifold

Reply
 
Thread Tools
Old 09-28-2008, 07:07 PM   #1
packpride
wilson north carolina
90 xlt
 
Join Date: Sep 2008
Posts: 2

Vehicle Specs

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
(Original Poster)
Angry Glowing exhaust manifold

I have a problem with a glowing exhaust manifold. I have a 90 ranger 2.3 with about 300,00o mile on it. It started all of a sudden. I did the usual tune up stuff, plugs,wires, coils ,and ecm with no luck. I had the cat checked and there is no problem with it. What would cause this problem
packpride 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 09-28-2008, 07:30 PM   #2
BrooklynBay
Brooklyn, NY
 
BrooklynBay's Avatar
88 89 93 95 96 Aerostars
 
Join Date: Nov 2005
Posts: 47,866

Vehicle Specs

Mentioned: 2 Post(s)
Tagged: 1 Thread(s)
Quoted: 202 Post(s)
Welcome to this forum! I suspect the catalytic converter even though it was checked. Check your vacuum with a gauge to see if it's low.
BrooklynBay is offline   Reply With Quote
Old 09-29-2008, 12:39 AM   #3
Sams01XplrSprt
Southern Cali Explorer
Newport Beach California & Bay Area California
 
Sams01XplrSprt's Avatar
2001 Sport (sold)
 
Join Date: Nov 2004
Posts: 15,650

Vehicle Specs

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
welcome




__________________
2001 Ford Explorer Sport 4.0 sohc engine. Mods include: dual 40 series flowmasters & high flow k&n air filter & removed silencer & yellow fog lights (sold for $1,800) as of 2-26-12
Sams01XplrSprt is offline   Reply With Quote
Old 09-29-2008, 12:47 AM   #4
RockinExplorer
Charlotte
'98 EB
 
Join Date: Dec 2004
Posts: 195

Vehicle Specs

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Pictures would be good, but most likely the cat is totally blocked, put your hand over the exhaust outlet(when cold) and see if it moves your hand, if not the cat is pretty much toast. Or crawl under the car hit the cat, if it rattles its blocked.




__________________
95 XLT 160,000 mi (gone)
98 EB Cherry Bomb Vortex, Front DS removed
RockinExplorer is offline   Reply With Quote
Old 09-29-2008, 05:53 AM   #5
aldive
Elite In Memoriam
 
aldive's Avatar
1999 XLT
 
Join Date: Jan 2001
Posts: 25,243

Vehicle Specs

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by packpride View Post
I had the cat checked and there is no problem with it. What would cause this problem
How was this performed.

Your description does sound like a cat problem to me.




__________________
Al Franklin

My truck

My Quest for 30

RIP Al Franklin! 1947-2010. Gone but not forgotten! :(
aldive is offline   Reply With Quote
Old 09-29-2008, 08:34 AM   #6
packpride
wilson north carolina
90 xlt
 
Join Date: Sep 2008
Posts: 2

Vehicle Specs

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
(Original Poster)
That was my first guess a clogged cat so I had the cat tested by two different shops. The first checked by just how much it was flowing.He said it could be a number of things have to run some tests.The second checked the flow, the temperature before the cat and after.He said if there was a blockage the temperature at the back would be colder than the front.It was the same.Ran a diagnostic no codes timing is ok so i,m stumped.I noticed the manifold only glows at the bottom not at the head. I did a tune up could the wrong heat rang of plug cause this just a thought.O and I removed my exhaust pipe my cat is hollow go figure.
packpride is offline   Reply With Quote
Old 09-29-2008, 02:53 PM   #7
Dopler174
Official Welcome Committe
Greensboro, NC
 
Dopler174's Avatar
1993 XLT 4X4
 
Join Date: Feb 2005
Posts: 5,086

Vehicle Specs

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
It sounds like blocked exhaust. I would pull the down pipes from the manifold. See if it is still glowing hot. If not, then it's probably the cat(s).
Dopler174 is offline   Reply With Quote
Old 11-12-2008, 07:44 PM   #8
mcelwajy
Monroe, OH
1993 Eddie Bauer
 
Join Date: Aug 2008
Posts: 76

Vehicle Specs

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
everytime I've dealt with glowing exhaust parts, the cat has been the culprit. We don't have e-check in my part of ohio, so I have no cat!




__________________
-Jeremy
mcelwajy is offline   Reply With Quote
Old 11-12-2008, 09:16 PM   #9
Melon
Blair, NE
00 XLT 5.0
 
Join Date: Apr 2008
Posts: 167

Vehicle Specs

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Did it start just after the plug wires were done? I had a glowing cat on a 3.8L SC T-Bird once and I had the plug wires in the wrong order.

-Melon




__________________
1994 Thunderbird 3.8 Supercharged
2000 Explorer 5.0 V8
Melon is offline   Reply With Quote
Old 11-13-2008, 11:15 AM   #10
fordnut71
oshawa, ontario. home 2 goverment motors canada
99 ex sport
 
Join Date: Sep 2007
Posts: 392

Vehicle Specs

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
id say cat also. but check your firing order.1,3,4,2
fordnut71 is offline   Reply With Quote
Old 11-13-2008, 11:24 AM   #11
boggs1227
Flowery Branch , Georgia, 1994 sport 2wd auto
2005 colorado 2wd 5spd
 
Join Date: Feb 2008
Posts: 1,472

Vehicle Specs

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
yet again...my bad

Last edited by boggs1227; 11-13-2008 at 12:06 PM.
boggs1227 is offline   Reply With Quote
Old 11-13-2008, 11:36 AM   #12
Fivspeed
2008 Subaru Legacy
 
Join Date: Nov 2008
Posts: 1

Vehicle Specs

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Newsflash....cat has it been guessed already. The OP says his is hollow...move on to guessing something else.

The problem may be a firing order issue, as some have mentioned, but I'm leaning towards a fuel issue. For your exhaust manifold to be glowing red, fuel is making its way to your exhaust manifold. So, think leaky injector, general misfire, bad exhaust valve (not closing all the way) etc.
Fivspeed is offline   Reply With Quote
Old 11-13-2008, 12:10 PM   #13
boggs1227
Flowery Branch , Georgia, 1994 sport 2wd auto
2005 colorado 2wd 5spd
 
Join Date: Feb 2008
Posts: 1,472

Vehicle Specs

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)

Last edited by boggs1227; 11-13-2008 at 01:51 PM.
boggs1227 is offline   Reply With Quote
Old 11-13-2008, 01:16 PM   #14
little x
SW VA
'91 XL
 
Join Date: Mar 2005
Posts: 1,326

Vehicle Specs

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks for posting the obvious Fivespeed. It was really irritating me that everyone kept saying cat after the OP said his was hollow. A very informative great 1st post to this forum.

To op: when you took out the pipes I assume that while you had them off you checked to make sure all the pipes were clear, not just the cat?
little x is offline   Reply With Quote
Old 11-13-2008, 01:37 PM   #15
mechanix
Got beer?!?!?!
Springport, Michigan
 
mechanix's Avatar
91 xlt & 93 xlt
 
Join Date: Feb 2005
Posts: 799

Vehicle Specs

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by packpride View Post
I have a problem with a glowing exhaust manifold. I have a 90 ranger 2.3 with about 300,00o mile on it. It started all of a sudden. I did the usual tune up stuff, plugs,wires, coils ,and ecm with no luck. I had the cat checked and there is no problem with it. What would cause this problem
What was the reasoning of changing the ECM? Are you sure the one you installed was the right calibration? There are many different calibrations to ECM's. Maybe you got the wrong one and it is dumping fuel like mad into the engine? Also do you notice any performance issues? Like when you take off from a dead stop the truck will "stumble"? Do you notice any dark gray exhaust coming from the tail pipe? This will be an indication of unburnt fuel. I know you have said you had the exhaust checked out, did they use a back pressure gague? Also you said your cat is hollow, where did all the junk from the cat go? Maybe the cat broke apart and is sitting in your muffler causing the issue.

Eric




__________________
ASE certified mechanic.
91 XLT on 36's.
2005 F150 XLT -Tow rig.
mechanix is offline   Reply With Quote
Old 11-13-2008, 01:44 PM   #16
boggs1227
Flowery Branch , Georgia, 1994 sport 2wd auto
2005 colorado 2wd 5spd
 
Join Date: Feb 2008
Posts: 1,472

Vehicle Specs

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
i wonder if the ecm could have the memory re-flashed to the stock parameters for his year (factory settings) ?




__________________
Scott .
boggs1227 is offline   Reply With Quote
Old 11-13-2008, 01:48 PM   #17
boggs1227
Flowery Branch , Georgia, 1994 sport 2wd auto
2005 colorado 2wd 5spd
 
Join Date: Feb 2008
Posts: 1,472

Vehicle Specs

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by little x View Post
Thanks for posting the obvious Fivespeed. It was really irritating me that everyone kept saying cat after the OP said his was hollow. A very informative great 1st post to this forum.

To op: when you took out the pipes I assume that while you had them off you checked to make sure all the pipes were clear, not just the cat?
...i guess this post is a good example of what can happen when either you or others do not read every reply in a post ....funny how something can get out of hand when some yells "fire " and others hear that and start running without looking around first.




__________________
Scott .
boggs1227 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 05:20 AM.



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.