1996 f250 ?
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1996 f250 ?
how can you tell if your cat converter is plugged up ? also can you eliminate the egr ? been trying to figure my truck out cause some days it runs great and certain days it wont run right at all ,bogging down not shifting right lack of power and sometimes clears out then crapy again. i posted my problem before but not many feedback any help out there plz thnak you . it has new plugs,wires,cap,rotor,airmass sensor,temp control sensor for computer ,still no change thnaks again
it has 351 w e4od trans
it has 351 w e4od trans
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Does the cat rattle when you tap it? Bad cats will do that. If it does not, do what 1966Tbird said and cut it off to take a look. Leave the EGR hooked up. They sell kits to eliminate, but they cause check engine light problems. There are no performance advantages to removing it either.
Before going any further, check the codes and see if that finds anything.
Before going any further, check the codes and see if that finds anything.
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there are 3 diff cat on it . when i went out plowing last night i unplugged the air mass sensor and the egr vaccum line and cut the muffler off and it ran alot better but there is still a little bog to it . i looked in the cat before the muffler and i only see the screen looking thing like bees nest. this problem is driving me nuts thanks for the info all . is there any info on what i wrote above thanks 
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Joined: May 2004
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From: Lakewood, Ohio
you use a vacuum gauge to check for clogged exhaust.
also, patience is a virtue, you will get an answer to your questions if you just wait a bit.
some forums take 5+ days to get back to you.
fte is much faster but not instantaneous.
also, patience is a virtue, you will get an answer to your questions if you just wait a bit.
some forums take 5+ days to get back to you.
fte is much faster but not instantaneous.
Posting Guru
Joined: Dec 2008
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From: Rusty, Maine
also a tell tale sign of a clogged "cat" is it will glow cherry red hot when driving down the road. Not so much sitting at idle.
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blueox is right about it glowing cherry red. sometimes after it's gotten that hot, you can catch fire. seen it happen. but, from everything i've read about it, your cat is clogged. might as well change it out. heck, they even have scrap value. i think they're worth about $30 scrap. that'll help with your cost of buying a new one.
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