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1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks Discuss the Early Eighties Bullnose Ford Truck

glowing cat

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Old Sep 15, 2010 | 05:03 PM
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glowing cat

so is it the timing off thats causing the inside of my catalytic converter to glow red?
 
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Old Sep 15, 2010 | 08:44 PM
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timing off could make your truck run leaner maker the pipes hotter but i would almost bet your cat is clogged if your loosing power or the motor just stalling cats can do that just because it can get the air out of motor and i have had dodge running bad look under truck and cat was cherry red i cut that one off and put a peice of pipe in place but i think its against the law in some states to cut them off and most muffler shops wont cut them off
 
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Old Sep 15, 2010 | 09:04 PM
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ya im not worried bout the legality, its already tech illegal, luckily i was able to buy a sticker, but i figured either clogged or the timing, when i put my hand behind the muffler, it was blowing out hard, just was way to hot even for exhuast, then i looked n it was red, what should the timing be? its an 86, 302 efi i went from manual to auto
 
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Old Sep 16, 2010 | 01:59 PM
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If the engine is running rich, that makes the convertor glow red.
 
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Old Sep 16, 2010 | 02:07 PM
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It does smell rich.
 
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Old Sep 16, 2010 | 02:08 PM
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How do I lean it out
 
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Old Sep 16, 2010 | 02:30 PM
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I can lean out a carb . But never messed with efi
 
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Old Sep 16, 2010 | 03:32 PM
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You can't lean out the mixture, the computer does it. You may have a hung open injector, bad o2, or another bad sensor.
 
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Old Sep 16, 2010 | 03:41 PM
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stupid efi
 
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Old Sep 16, 2010 | 03:41 PM
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ok so with the spout out the timing is set fine n steady at 10* so now what
 
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Old Sep 16, 2010 | 03:48 PM
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Bad O2 sensor could do it. They are a tune up item.

If you haven't changed it, it wouldn't hurt to do so. My books recommend to change it every 30,000 to 50,000 miles.
 
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Old Sep 16, 2010 | 03:51 PM
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i was out there messing with it n i kept stanindg behind truck while it was running, i come in side i smell ilke i work at a gas station
 
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Old Sep 16, 2010 | 06:57 PM
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If it EFI it may have a bad fuel pressure regulator, my 88 460 done that and the cat was bright red, gas mileage went down to 3 mpg
 
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Old Sep 16, 2010 | 07:14 PM
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wheres the regulator at? i didnt know i had one
 
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Old Sep 16, 2010 | 07:51 PM
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Check for codes, Fordfuelinjection.com has instructions.
 
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