Go Back   Ford Truck Enthusiasts Forums > Older, Classic & Antique Trucks > 1987 - 1996 F150 & Larger F-Series Trucks
Sign in using an external account
Register Forgot Password?


1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks

Welcome to Ford-Trucks Forums!
Welcome to Ford-Trucks.com.

You are currently viewing our forums as a guest, which gives you limited access to view most discussions and access our other features. By joining our community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join the Ford-Trucks Forums community today!





 
Reply
 
 
 
 
LinkBack Thread Tools Search this Thread
  #1  
Old 03-25-2008, 10:23 PM
newbe-rebuilder newbe-rebuilder is offline
New User
 
Join Date: Aug 2007
Posts: 3
newbe-rebuilder is starting off with a positive reputation.
Question Catalytic converter Cherry Red!!!!

I have a 95 F150 4X4 5.0 5 Speed. 186,000 mi. Over the last couple months when starting off cold the engine would sputter (?) and cut out, but after the RPM would rise it would clear up. About a week ago it started to cut out through at all speeds and RPM, hot or cold. I was thinking fuel filter or spark plugs. Maybe a bad guess on my part, but anyway. Tonight I replaced plugs, wires and distributer. I dont know if I done something really wrong but it is worse ( will hardly run at an idle) and after about 10 minutes the exhaust pipe gets Cherry Red at the exit side of the catalytic converter!!!! I tripple checked the order of wires. It is correct! What ****** have I done!! I have never even heard of this. Is the catalytic converter bad and causeing the rough engine running? How did changing sparkplugs and wires effect this and cause the exhaust to get Red? I dont even know where to start next after tonight? Should I replace the converter? Thanks ahead of time for any replies.
Reply With Quote
  #2  
Old 03-25-2008, 10:29 PM
Greywolf's Avatar
Greywolf Greywolf is offline
Pestiferous Nuisance
 
Join Date: Aug 2001
Location: Drummonds, TN USA
Posts: 29,094
Greywolf has a superb reputationGreywolf has a superb reputationGreywolf has a superb reputationGreywolf has a superb reputationGreywolf has a superb reputationGreywolf has a superb reputationGreywolf has a superb reputationGreywolf has a superb reputationGreywolf has a superb reputationGreywolf has a superb reputationGreywolf has a superb reputation
Were I you - I'd be looking and feeling all around to find an open vacuum fitting that has no line attached.

Go all around the intake manifold - especially in the back, with an inspection mirror - or if EFI, think about the idle air bleed.

Headers only do that on an extreme low mixture!
__________________
Things to do today: Be Like Steve...
Reply With Quote
  #3  
Old 03-26-2008, 01:53 AM
95F350XL 95F350XL is offline
Posting Guru
 
Join Date: Aug 2007
Location: Belle Mead NJ
Posts: 2,026
95F350XL has a good reputation on FTE.95F350XL has a good reputation on FTE.95F350XL has a good reputation on FTE.
If the converter is getting red it is clogged, but your sayin its red after the cat? A clogged cat can caus the engine to have no power.
__________________
1991 F350 XLT Lariat 7.5L ZF 4x4 Headman Mids, True Dual 3" With Flowmaster Single Chamber, 16.5x10 AR Baja, 37x12.5 GY Wranger MT's
1999 F250SD 6.8L 4R100, Stainless Shortys, Stainless header back, Magnaflow Highflow cat, Magnaflow XL Muffler, 16.5x10 AR Baja, 37x12.5 GY MTR
88 Stang 347, 91 Grand Marquis, 03 Mazdaspeed Protege, 05 GSXR750
Reply With Quote
  #4  
Old 03-26-2008, 02:40 AM
jeremiah302's Avatar
jeremiah302 jeremiah302 is offline
Junior User
 
Join Date: Feb 2008
Location: Tennessee
Posts: 97
jeremiah302 is starting off with a positive reputation.
I would have to say that the catt is clogged up, that happened to me once before, i was pulling out and had no power what so ever and the truck wouldn't stay running at a stop sign, needles to say the catt came off and straight pipes went on..lol but that truck is gone now 'RIP' thanks to a drunk. Good luck
Reply With Quote
  #5  
Old 03-26-2008, 04:39 AM
EPNCSU2006's Avatar
EPNCSU2006 EPNCSU2006 is offline
Post Fiend
 
Join Date: Nov 2002
Location: Concord, NC
Posts: 9,225
EPNCSU2006 has a very good reputation on FTE.EPNCSU2006 has a very good reputation on FTE.EPNCSU2006 has a very good reputation on FTE.EPNCSU2006 has a very good reputation on FTE.
Sounds like you have either an extremely rich mixture, or a substantial misfire, both of which will dump unburned fuel into the exhaust, where it burns, causing higher exhaust temperatures than normal. Out of curiosity, what firing order are you using?
__________________
Eric

'87 F150 302 ZF 5 speed 4x2
Reply With Quote
  #6  
Old 06-01-2010, 09:41 PM
Bursch Bursch is offline
Junior User
 
Join Date: Nov 2007
Location: Minnesota
Posts: 58
Bursch is starting off with a positive reputation.
Did your engine temp climb also? Mine started running like that lately the temp guage climbed like crazy. I am thinking clogged cat. I will look if it gets that hot.
Reply With Quote
  #7  
Old 06-01-2010, 10:24 PM
Volvo92906's Avatar
Volvo92906 Volvo92906 is offline
Posting Guru
 
Join Date: Jul 2009
Location: Toledo, Ohio
Posts: 1,069
Volvo92906 is gaining momentum as a positive member of FTE.Volvo92906 is gaining momentum as a positive member of FTE.
Sounds like the Cat.
__________________
enˇgine noun -a machine for converting thermal energy into mechanical energy or power to produce force and motion.

moˇtor noun -a machine that converts electrical energy into mechanical energy, as an induction motor.
Reply With Quote
  #8  
Old 06-01-2010, 10:44 PM
rla2005's Avatar
rla2005 rla2005 is online now
Post Fiend
 
Join Date: Oct 2005
Location: Illinois
Posts: 8,055
rla2005 is a splendid one to beholdrla2005 is a splendid one to beholdrla2005 is a splendid one to beholdrla2005 is a splendid one to beholdrla2005 is a splendid one to beholdrla2005 is a splendid one to beholdrla2005 is a splendid one to behold
I had all 4 cats glowing red on my last '93 Lightning when the PIP was acting up. I would also question how the timing was set?
Reply With Quote
  #9  
Old 06-02-2010, 09:19 AM
subford's Avatar
subford subford is online now
Post Fiend
 
Join Date: Aug 2005
Location: Easton,Ks
Posts: 17,035
subford has much to be proud ofsubford has much to be proud ofsubford has much to be proud ofsubford has much to be proud ofsubford has much to be proud ofsubford has much to be proud ofsubford has much to be proud ofsubford has much to be proud ofsubford has much to be proud of
I can see extremely rich mixture (FPR, O2 sensor , ...), or a substantial misfire (PIP), both of which will dump unburned fuel into the exhaust but I do not see how a clogged converter will cause it to get RED.
__________________
95 F150 302 4R70W EB EX-CAB
94 F53 460 E4OD COACHMEN SANTARA RV
83 F150 Flare Side 351W AOD
77 F250 351M-2V NP 435/4 Speed 4X4
subford@gmail.com
Bill K, Kansas Chapter
Reply With Quote
  #10  
Old 06-02-2010, 10:03 AM
Volvo92906's Avatar
Volvo92906 Volvo92906 is offline
Posting Guru
 
Join Date: Jul 2009
Location: Toledo, Ohio
Posts: 1,069
Volvo92906 is gaining momentum as a positive member of FTE.Volvo92906 is gaining momentum as a positive member of FTE.
Quote:
Originally Posted by subford View Post
I can see extremely rich mixture (FPR, O2 sensor , ...), or a substantial misfire (PIP), both of which will dump unburned fuel into the exhaust but I do not see how a clogged converter will cause it to get RED.
I was always informed that no power and glowing red cat were signs it was bad (clogged). Im not gonna go against you. I could learn me something new here.
__________________
enˇgine noun -a machine for converting thermal energy into mechanical energy or power to produce force and motion.

moˇtor noun -a machine that converts electrical energy into mechanical energy, as an induction motor.
Reply With Quote
  #11  
Old 06-02-2010, 10:26 AM
subford's Avatar
subford subford is online now
Post Fiend
 
Join Date: Aug 2005
Location: Easton,Ks
Posts: 17,035
subford has much to be proud ofsubford has much to be proud ofsubford has much to be proud ofsubford has much to be proud ofsubford has much to be proud ofsubford has much to be proud ofsubford has much to be proud ofsubford has much to be proud ofsubford has much to be proud of
I can see bad timing doing it also.
I have heard it also that a clogged converter will cause the converter to get RED.
But do not understand how a clogged exhaust system will cause anything to get red.
__________________
95 F150 302 4R70W EB EX-CAB
94 F53 460 E4OD COACHMEN SANTARA RV
83 F150 Flare Side 351W AOD
77 F250 351M-2V NP 435/4 Speed 4X4
subford@gmail.com
Bill K, Kansas Chapter
Reply With Quote
  #12  
Old 06-02-2010, 10:38 AM
Vacationtime247 Vacationtime247 is offline
Junior User
 
Join Date: May 2010
Posts: 69
Vacationtime247 is starting off with a positive reputation.
If your state does not have emissions testing, cut off the exhaust behind the catalytic converter. Take a breaker bar or long hard metal object and poke through the cat. Keep doing this until all the guts inside the cat have been broke free. Start the truck and blow it all out. Put in a sleeve and some u-bolts. More power and will probably fix the problem. Had a van with this problem and I just ran a straight pipe. Problem solved.
VT247
Reply With Quote
  #13  
Old 06-02-2010, 10:41 AM
Hitokori's Avatar
Hitokori Hitokori is offline
Posting Guru
 
Join Date: Nov 2009
Posts: 2,244
Hitokori is gaining momentum as a positive member of FTE.
timing being off will cause the manifolds to glow if the cat is just glowing its clogged... so either bust it out or replace it with a new one or a piece of pipe

and it causes the cat to glow because the hot gasses build up and cant escape so it will heat the cat and exhaust pipe up so much it glows and can develop leaks
__________________
Matt


Whats the diff between your wife and your job? After 10 years your job still sucks
Reply With Quote
  #14  
Old 06-02-2010, 10:49 AM
ymeski56's Avatar
ymeski56 ymeski56 is offline
Post Fiend
 
Join Date: Sep 2006
Location: Long Beach, Calimexiforia
Posts: 5,125
ymeski56 has a superb reputationymeski56 has a superb reputationymeski56 has a superb reputationymeski56 has a superb reputationymeski56 has a superb reputationymeski56 has a superb reputationymeski56 has a superb reputationymeski56 has a superb reputationymeski56 has a superb reputationymeski56 has a superb reputationymeski56 has a superb reputation
Remove the o2 ahead of the Cat. if pressure there is more than 3 psi, back pressure! If the temp & power returns to normal while the o2 is removed, back pressure. Cat's pooched. This does not address how it got that way. #1. Running higher than 87 octane redundantly. Also, Error code scan results, are your friend!
__________________
Saving the World......One Ford truck at a Time!
"Democracy" is two wolves and one lamb voting on what's for lunch.
"Liberty" is a well armed lamb disputing the vote!
Reply With Quote
  #15  
Old 06-02-2010, 10:51 AM
Dancingchicken Dancingchicken is offline
Senior User
 
Join Date: Jun 2009
Location: PA, USA
Posts: 286
Dancingchicken is starting off with a positive reputation.
I remember a guy on here months ago that was pulling his hair out over what ended up being no spark to one cylinder. Turned out that one of the brand new plug wires he just installed was bad right out of the box. It was actually sort of funny to me because when he brought it back to the parts store (I think it was Autobone) he said he got in a fight with the guy at the counter over it, almost a fist-fight, lol. Now that's frustrated!

Soooo, that said, I would do more than just check the order of the plug wires you just put on, I would check each one to make sure you are actually getting spark through them. If you are, I would go with continuing to snoop around the cat being plugged. That sounds most logical at this point and with that many miles on your rig, very possible.
__________________

93 F250 XLT Supercab, Longbed, 4x4, 5.8L, E4OD
04 Mustang GT, 4.6L, Steeda Tri-Ax Short Throw, SLP Loudmouth Cat-back, Tunable Induction CAI
Reply With Quote
Old 06-02-2010, 10:51 AM
 
 
 
Reply

Go Back   Ford Truck Enthusiasts Forums > Older, Classic & Antique Trucks > 1987 - 1996 F150 & Larger F-Series Trucks

Tags
95, catalytic, cats, cherry, clogged, converter, exhaust, f150, hot, idle, mustang, pinging, pipes, red, rough, shut, truck

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

Similar Threads
Thread Thread Starter Forum Replies Last Post
2000 F150 4.6l triton ghoota 1997 - 2003 F150 2 04-03-2013 09:36 PM
Catalytic converter-00 f150 5.4 kdokey 1997 - 2003 F150 3 01-11-2010 09:46 AM
cherry red catalytic converter! Hmann 1973 - 1979 F-100 & Larger F-Series Trucks 11 10-05-2009 10:58 PM
Catalytic converter glowing red Fairlane62 1997 - 2003 F150 9 04-03-2007 11:35 PM
making my 4.2L roar 4.2Lbeast 3.8 & 4.2L V6 58 12-20-2004 09:48 AM



All times are GMT -5. The time now is 07:28 AM.


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. FordŽ is a registered trademark of the Ford Motor Company.

vbulletin Admin Backup