Go Back   Ford F150 Forum - Community of Ford Truck Fans > Pre-1997 F150 > 1987 - 1996 F150
Sign in using an external account
Register Forgot Password?


Reply
 
 
 
 
Thread Tools Search this Thread Display Modes
Old 05-05-2012, 01:07 PM   #1
Junior Member
 
Join Date: May 2012
Posts: 7
Mentioned: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Default 1996 F150 Exhaust Putting Out Very Hot Air

1996 F150 no power and low gas mileage. Discovered both cats clogged. Changed cats and now has great power and better gas mileage. However, within a few seconds of starting her up, the air coming out of exhaust is extremely hot. I don't want to melt down my cats again and have no idea where to start to find the problem and fix it. Any suggestions?
DJGarrett is offline   Reply With Quote
Old 05-05-2012, 01:25 PM   #2
We'd do it
 
Just call me Sean's Avatar
 
Join Date: May 2008
Location: Orlando,Fl.
Posts: 31,272
Mentioned: 2 Post(s)
Thanks: 29
Thanked 371 Times in 331 Posts
Feedback Score: 1 reviews
Send a message via Yahoo to Just call me Sean
Default

Exhaust is supposed to be hot. If you really think it's too hot check the timing.
__________________
Quote:
Originally Posted by Early Cuyler
Fights begin, fingerprints are took, days is lost, bail is made, court dates are ignored, cycle is repeated.
Just call me Sean is offline   Reply With Quote
Old 05-05-2012, 01:52 PM   #3
Junior Member
 
Join Date: May 2012
Posts: 7
Mentioned: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Default

I know it is supposed to be hot, but compared to my other vehicles, this is 10 times hotter.
DJGarrett is offline   Reply With Quote
Old 05-05-2012, 02:19 PM   #4
Dodge+Ford = always ready
 
f150cam's Avatar
 
Join Date: Apr 2011
Location: Pleasant Hill Oregon.
Posts: 8,274
Mentioned: 0 Post(s)
Thanks: 9
Thanked 107 Times in 105 Posts
Feedback Score: 0 reviews
Default

my exhaust is to hot to put my hand over with a towel wrapped around my hand after about a minute if not less lol. 10x hotter then that stuff would be just catching fire next to your exhaust. its probably normal.
__________________
1997 f250, HD XLT 7.5l/460, 4sp auto/OD, 4x4, extended cab, long bed, 138k miles.
1996 f150 XLT, 5.0/302, 4sp auto/OD, extended cab short bed, 107k miles. TOTALED
1998 ram 1500, SLT Laramie, 5.2/318, 4x4, with 4sp auto/OD, quadcab, shortbed, 147k miles.
1992 f150, XLT 5.0/302, 4 sp auto/OD, extended cab, short bed, 107k miles.
f150cam is offline   Reply With Quote
Old 05-05-2012, 02:27 PM   #5
Junior Member
 
Join Date: May 2012
Posts: 7
Mentioned: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Default

My other fords (Ranger, F100, Bronco II) do not do this. I don't want to melt my cats again. I am going to start with the timing and go from there. There has to be something I can do to fix it, just not sure what that could be.
DJGarrett is offline   Reply With Quote
Old 05-05-2012, 02:48 PM   #6
Off road rebel
 
94Brodyf150's Avatar
 
Join Date: Feb 2011
Location: Minnesota
Posts: 1,290
Mentioned: 0 Post(s)
Thanks: 0
Thanked 20 Times in 20 Posts
Feedback Score: 0 reviews
Default

If your getting better mpgs and power then who cares...I straight piped my truck and crap comes out wicked hot, but I've never had a problem.
__________________
~96 Centurion~
Black Pearl
94Brodyf150 is offline   Reply With Quote
Old 05-05-2012, 04:03 PM   #7
Senior Member
5 Year Member
 
wde3477's Avatar
 
Join Date: Jul 2007
Location: Cape Girardeau MO
Posts: 2,381
Mentioned: 0 Post(s)
Thanks: 0
Thanked 20 Times in 20 Posts
Feedback Score: 0 reviews
Default

If the exhaust is too hot, suggest the possibility of the fuel not being completely burned in the engine. With new cats, the combustion will continue - so perhaps look for a cherry red cat as a sign.

As mentioned above - if the spark is too late in the combustion cycle, the fuel will continue to burn as it leaves, also bringing up the chance of burning the valves, so check the timing.

Recommend to pull the codes to see if there's a problem with the O2 sensors - looking for a 'too rich' type fault.

May not hurt to toss in a can of fuel system cleaner such as SeaFoam to ensure the injectors are misting properly.
__________________
1989 F150 XLT standard-cab shortbed 4x4, 5.0L, AOD, 3.55 gears, manual hubs, 31x10.50 tires, 217K miles. Repainted Oct09.
wde3477 is offline   Reply With Quote
Old 05-05-2012, 09:31 PM   #8
Junior Member
 
Join Date: May 2012
Posts: 7
Mentioned: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Default

Problem is, timing is controlled by the computer, so what do I do now? I am going to have it checked to see what codes it pulls.
DJGarrett is offline   Reply With Quote
Old 05-05-2012, 09:38 PM   #9
Oooo a Custom Title.
 
LOCO LAPTOP's Avatar
 
Join Date: Feb 2012
Location: Coral Springs, FL
Posts: 662
Mentioned: 1 Post(s)
Thanks: 2
Thanked 25 Times in 24 Posts
Feedback Score: 0 reviews
Default

Quote:
Originally Posted by DJGarrett View Post
Problem is, timing is controlled by the computer, so what do I do now? I am going to have it checked to see what codes it pulls.
Wrong. Timing is not set by computer.

This is a very good thread on how to set timing.
__________________
Daily Driver: 2013 Ford Taurus Police Interceptor 3.5L 321HP (Tuned) V6

Truck: 1996 F-150 XL 5.0L v8 390HP, 450TQ | Edelbrock Performer RPM Heads | Edelbrock Performer Truck Intake | BBK Twin 56mm TB | CompCam XE264HR Camshaft | CompCam 1.7 Rockers | PaceSetter LT Headers | Dual exhaust | Heavy Duty 4R70W | 3:55 Ford Racing Trac-Lok Diff.
LOCO LAPTOP is offline   Reply With Quote
Old 05-05-2012, 09:40 PM   #10
Dodge+Ford = always ready
 
f150cam's Avatar
 
Join Date: Apr 2011
Location: Pleasant Hill Oregon.
Posts: 8,274
Mentioned: 0 Post(s)
Thanks: 9
Thanked 107 Times in 105 Posts
Feedback Score: 0 reviews
Default

what hes getting at, is theirs a very few 96 f150s that you cant because it became completely computer controlled. i know it was a royal pain on my 96 f150, but on my 97 f250 (not OBDII or MAF) its simple.
__________________
1997 f250, HD XLT 7.5l/460, 4sp auto/OD, 4x4, extended cab, long bed, 138k miles.
1996 f150 XLT, 5.0/302, 4sp auto/OD, extended cab short bed, 107k miles. TOTALED
1998 ram 1500, SLT Laramie, 5.2/318, 4x4, with 4sp auto/OD, quadcab, shortbed, 147k miles.
1992 f150, XLT 5.0/302, 4 sp auto/OD, extended cab, short bed, 107k miles.
f150cam is offline   Reply With Quote
Old 05-05-2012, 09:40 PM
 
 
 
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Join F150 Forum

 

The Mustang Source
All times are GMT -4. The time now is 03:05 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Copyright 2006 - 20011 F150forum.com
This site is in no way affiliated with the Ford Motor Company.