Ford Exhaust System :: Removing Cats - O2 Sensor Will Be Effected?
Feb 12, 2008
I am getting my truck back today after all the work that has been done to it over the past 3 weeks, and well, I have always wanted to gut my cats, but have been worried to waste the cats buy gutting them and didnt want to cause a disturbence in the airflow by gutting them, so i figured atleast if i was aching to be illegal and gut them, the least i could do is just remove them, but my question is, will it mess the o2 sensors up? Currently the o2 sensors arnt connected to the cats at all, so my feelings is it wouldn't mess with the truck or would it? I was thinking of just removing the two cats in the true dual, and replacing the segments with pieces of pipe, would that be sufficient?
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I have an 2003 Explorer 4.0 and I am looking at replacing my muffler. Only problem is I don't know who to go with. I am looking for a mellow tone with minimal interior noise. I have been looking at Flowmaster, Magnaflow & Dynomax although I can't make a decision. I have heard how the 4.0 Ranger sound's on Magnaflows website(sound's OK) aside from all the horrible sound clips floating around that don't have good quality to listen too. I was looking at Flowmaster 50 series Delta Flow and there SUV muffler(a tad thicker than Delta series) but want some feedback on who/what to go with. Also, right before the tailpipe ends, next to the spare tire underneath, there looks to be what looks like a resonator if I am correct on the tailpipe. Can this be removed and replaced with new piping? Will it hurt performance or make the exhaust sound different?
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Would a high flow cat on my 97 f250 7.5l make any more performance and would it make it any louder? My truck has the air tubes on it so its hard to find a cat for it.
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So I was wondering where the O2 sensors are on the 04 f150s and if I could cut the rear set of cats out without throwing off those sensors?
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I have a code that just started popping up on my 2000 Yukon XL2500 with 93K. I know I have a spot on the side of the Muffler that was rotted out and patched by the previous owner. My question is would an exhaust leak that far back in the system throw off the O2 Sensor?
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Want to install exhaust system on my 06 F350.Tell me,what is the best brand for my truck,I know, very good intake system is from K&N,what about exhaust?
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I finally decided to replace a leaky manifold as the low compression and leaking oil has gotten to be too much. Not sure but it looks like I'll have to remove the intake manni to get to it. A fortunate side effect is that the oil leaking from the manni seems to have lubricated most of what would be rust-welded bolts. I'd driven it like this since I bought it 3 yrs ago.
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Tip for searching for "how to remove ford exhaust hangers" - these items are now among my most hated items. Very easy to install with a little lube on the hanger, but removing them especially while they are installed on a the truck is a major PITA! Spent forever today trying to pry them off and it finally dawned on me how to remove them easily. Thought I would share.....use a pitman arm puller or similar puller. Mine fit perfectly and made removing several of these (more than once) much easier.
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I tore it apart and there was no gasket or donut ring in the flange. Is there supposed to be a gasket or donut ring? I can feel the leak with my hand. I have retightened & it still "tick-ticks" real bad.
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I have a 90 bronco with a efi 351w and im missing one nut for the manifold to exhaust pipe flange. I have looked all over the net and can't find the size I know its a 1/2in socket but I need the thread pitch and size, had the parts guy try to sell me the stud and nut kit seem really expensive for just a nut and to install the full kit I have to pull skid plates and the trany supports just to start to get room to do the job, seems like a lot of work to replace 1 nut...
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I just purchased a 2003 V10 with 270 000kms. The truck had had regular maintenance. It has an exhaust leak and runs a little bit rough. Could the exhaust leak cause the truck to run a little rough or am I dealing with another issue?
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My F150 exhaust seems rather quiet when I first start it up, but after it gets warmed up good, the exhaust is much louder (which I like). I started wondering if I had a crack up front that widened out when it got hot, so looked under it when I got home today with it hot and still idling, but didn't see any cracks. Also I did not hear any noise like a leak. All sound was coming from the side exit pipe. So... what is the phenomenon that would cause this?
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Long story, I'll try to make this short, 2000 E250 5.4L What would or could happen if the catalytic converter was removed from the exhaust system?
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Ok, probably about 1/3 times i start my 96 f150 4.9 with true duals, the left pipe has a higher pitched howling noise, its a steady tone whether I rev the truck up or not it just gets louder. It will do it for about 6 seconds and then stop. The truck doesn't run badly because of it, but i took her to autozone to get her scanned and they said that the oxygen sensor on the first manifold bank has a slow response on startup. Is that what causes this strange noise, I don't even know how it would make it, it sounds much different from the engine. The right pipe doesn't do anything.
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Leaking exhaust manifold? The truck has a much louder than normal "knock" when accelerating. At first I thought and had some bad fuel in the tank. I eliminated that with a full take of good fuel and some STP but the "knocking" continued. Then I thought that perhaps it wasn't firing on all cylinders but it felt like it had full power. I took it to my mechanic and he said it as a exhaust manifold leak. He said that he has never replaced the exhaust manifold but that it was a "nightmare" and expensive. He also said that it's not a safety issue but on the long run the leak would cause the truck not to pass its emission test. He said the problem was with rusted bolts that would be difficult to remove.
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I have a 94 ranger 4L. I am looking for a more loud exhaust sound in/outside the truck and at idle. I have had a cherry bomb turbo on it and it was ok but not loud enough for my liking. I just picked up a flowmaster 40 2 days ago and it sounds good but again just not loud enough for my taste and kinda a lot more. I was looking for a louder muffler that is not a glasspack and would like to stay under like 80 or so.
I also thought about getting a high flow cat which i think might make some more sound but was not sure. Im running the stock pipe which is 2" and end in back of the wheel on the right. I look at the Hooker Headers Maximum Flow Muffler which i thought would be louder b/c it's more straight through the muffler so it would put off more sound better. What would u recommend for something more loud ?
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i've got an 05 f250 SD 5.4 v8. i had a bad manifold and decided to get headers. i figured i would get the most performance of of them if i did high flow cats too. oh and i also already have an exhaust on it. the only cats i can find for it are universal fit. my question is how would i be able to get the cats off of the factory pipes without damaging the pipes or original cats? plus the pipe with the flange end is a really small piece. would i be able to get it off just by heating it up?
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My truck just started running really loud when it's cold and the leak goes away when it warms up to operating temperature.I did a little bit of investigating and I have found where the leak is coming from at the end of the exhaust manifold where the donut gasket meets the catalytic converters. It appears that the bolts rotted that hold the system together at the gasket. What should I do to repair this? I don't really want to replace the whole manifold because I know I'll break a stud off in the engine because everything is pretty rusty down there. I even took some pictures of the problem....
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I have been thinking about toying with my exhaust. I don't have a crazy amount of money. I got a 94 F250 with the 5.8 liter 351. Heres what I was thinking. Get rid of everything after the cat, and then run a single 3 inch pipe from the cat to a flowmaster 40 series, and then exit either right before the back tire or right after it.
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i have my 4 inch exhaust pipe cut just behind the rear of the cab right now with no muffler. If i cut it further up maybe jsut under the front seat or so what would this to the sound? would it make it deeper or louder?
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Why it won't work. copper exhaust coming off the headers. I have the ability to get it and bend it and how cool would that be copper duals. Why won't it work. If I bolt it right to the headers.
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