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5.0L (1979-1995) Mustang Technical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.

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Old 11-08-2011, 11:45 PM   #1
latinmustang90
 
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Vehicle: 1990 ford mustang gt
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Default headers red hot??? why?

I just replace my engine and ran ok but my headers are turning red hot I have no clue why is something wrong with the engine please aprecciate any info thanks.....
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Old 11-09-2011, 11:42 AM   #2
mustangsneverdie
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Do you still have the converters on your car? you need to check and see if they've been clogged. check fuel pressure and timing make sure everything is where it should
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Old 11-09-2011, 12:00 PM   #3
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If you still have your emissions equipment your air pump might not be diverting TAB/TAD problem. Did you disconnect the vacuum lines when installing the headers? Is it running ok? not missing or blowing black smoke is it? plug wires on correct? Or a clogged convertor problem.
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Old 11-09-2011, 12:06 PM   #4
Derf00
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Only two real reasons why your headers would glow.

Timing is too retarded or you're burning too rich.
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if you are getting 29mpg in your 5.0, you aren't driving it correctly
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Old 11-09-2011, 04:44 PM   #5
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Quote:
Originally Posted by Derf00 View Post
Only two real reasons why your headers would glow.

Timing is too retarded or you're burning too rich.
100% check your timing...
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Old 11-09-2011, 08:14 PM   #6
latinmustang90
 
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should I perform the TDC again? Im not sure if I did it right could that be the problem?
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Old 11-09-2011, 09:19 PM   #7
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yep... go read my how to, and try again

http://mustangforums.com/forum/5-0l-...stributor.html
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Old 11-09-2011, 09:28 PM   #8
projectresto83
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Timing............fix it
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Old 11-09-2011, 11:32 PM   #9
tinman
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An extreme lean condition can also cause but I sooner think its the timing.......
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Old 11-10-2011, 12:14 AM   #10
latinmustang90
 
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Default it's fix

it's fix thank you so much guys!!!!! now what I have to work on next is the oil leak from the oil pan I just noticed again thanks guys

Last edited by latinmustang90; 11-10-2011 at 12:17 AM.
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Old 11-10-2011, 12:14 AM
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1985, 1990, 40l, 50, engine, exhaust, fix, fox, glowing, gt, header, headers, hot, mustang, red, turning

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