Actually developed a crack and subsequent leak in a pipe running lengthwise, so assume the factory weld over the years went bad. Since it would be a weld overhead, wonder what method would be best? Would oxy acetylene work or mig? I don't have a tig so that not an option for me.
View 2 RepliesI have a 93 ford taurus 3.8L V6 automatic GL. The exhaust clamp between the resonator and exhaust pipe came off and I need to know what size clamp I will need to replace it. I think it is a 2 inch but I am not sure.
View 1 Repliesi 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?
View 7 RepliesOver the weekend I replaced the passenger side up pipe with one that doesn't have a spot for the EGR cooler. After putting the turbo back in it has a pretty bad exhaust leak. Sounds like it is on the drivers side somewhere near the Y pipe. When replacing the passenger up pipe I didn't loosen any manifold bolts or anything and I am thinking that the Y pipe is out of alignment with the turbo. What is the proper procedure to loosen everything up and get it aligned on the turbo? My guess is remove turbo, loosen drivers side manifold, loosen passenger side manifold, loosen passenger up pipe and tighten it again now that everything isn't under tension, install turbo and clamp to Y pipe, tighten manifolds. Is that the right idea?
View 8 Repliesi have a 2002 250 with the 7.3. i put a mbrp aluminized 4in turbo back with a FTE 30in resonator. I'm getting a lot of noise in the cab sounds like its where the turbo goes into the 4in pipe. the muffler guy said its because of the bigger pipe and not a leak. is there anything i can do to get rid of the excess noise.
View 8 RepliesI changed my front catalytic converter yesterday. Everything was installed properly and the repair went smooth. Unfortunately when I started the car, I discovered the connection between the bottom of the cat and the connecting pipe was leaking out a ton of exhaust. The previous cat didn't leak like that. I put in a new gasket and tightened the bolts extra tight but the leak is still there. The worst part is that the leaking exhaust fumes are all traveling up into the hood, which makes it look like the engine is smoking. What should I do to stop the leak? I even tried using muffler tape but that only worked for an hour until it hardened and sounded like crap.
View 3 RepliesI installed the non-resonated exhaust, but I noticed that some air/water condensation is coming out of the small pipe that join the cat and non resonated part of the exhaust.
I double checked the position of the small part and is very deep inside the other tubes, plus I checked the clamps too.
I just finished installing a new turbo (shaft play and lots of oil in the compressor side), RR up-pipes, and T500 (250k and once had a very long crank to get the ICP up to start).
Anyway, except for another exhaust leak at the pass side up-pipe to manifold, it seemed to run okay but with lots of white smoke. I only have about 50 miles after the install, when it suddenly starting surging and made a lot of loud knocking noises. This then went away and came back again rather quickly. I was close to home, so I made back under power. I also received the two codes listed. My IPR is original, but two summers ago I installed the IPR re-seal kit. Everything on the IPR looked good when it came off for the T500.
After reading around, I saw that low fuel pressure / air in fuel can cause problems. I connected a pressure gauge to the pre-filter port on the filter housing, and got 40psi at idle. I then took a diesel shower and blew out the fuel line into the tank. After re-connecting it, the fuel pressure stayed the same but the engines idles much better, but still has blue smoke. It's the original fuel pump (to me anyway) and original fuel line connections.
I have about 3/4 tank, and no place to put it, so I'd need to run it out for the Hutch mod, or least to get in there and inspect. Would eliminating the Ford connections at the pump be worthwhile for now, and is 40psi at idle adequate? Wondering if it's time for a fuel pump?
Recently, my car has been sounding louder than usual. It seems to be coming from under the vehicle, and when I checked, there was smoke coming from a pipe underneath. My best guess is that the exhaust is leaking. It kind of looks like there's a disconnect here....
View 3 RepliesThe exhaust pipe connecting the cat and muffler is broken. However, the bolts connecting them are so rusted that look like one piece. Any tips on removing them off? I am afraid that PB blaster won't work in this case. I am thinking of drill them through, but afraid of damaging the cat.
BTW, my car's fuel tank has some leak. I can smell the gas. Is it safe to use a torch to remove freezing bolts?
So I did the seafoam trick and I came to the conculsion that my exhaust leak is coming from either the manifold or the flex pipe. There was no smoke coming from under the car only a mist of smoking coming up from the back of the engine, probably by the manifold or the flex pipe. I do not see any visible cracking per say. I have attached a picture of the end of the flex pipe and it almost looks like someone may have tried to seal it before? I don't know if that is normal or not as seen in the picture.
2002 Volkswagen Golf 2.0 ...
I have a 2011 F350 CC long box 4x4, with a 6.2, 93,000 km on it. I periodically get a P0420. I clear it and sometimes it comes back in 10 or 20 KM and sometimes it comes back in a couple hundred km. Been doing this for about 800 KM.
Yesterday I got an exaust leak at the joint where the exaust manifold meets the pipe beside the engine. Checked close, bolts appear intact, leak is on the outboard side blowing towards the frame. Looks like a gasket or donut seal failed.
I am wondering if the catalytic converter was plugged or restrictive, would this cause the P0420 and could back pressure from a restricted catalyitic converter cause the gasket to blow?
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.
View 7 RepliesI 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?
View 2 RepliesI have a 97 Expedition with the 5.4 engine and 160k miles. Recently while having other work done I was told that I had an exhaust manifold leak due to broken rusted bolts.
View 3 RepliesMy 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....
View 3 RepliesMy wife's 97 f150 4x4 had an exhaust leak on the passenger side. 7 out of the 8 bolts holding the manifold on are snapped off. 4 of them are snapped off 1/8" below the top of the hole on the cylinder head . I am I unable to get a drill in to drill these out. The other 3 I've tried welding a nut on these but they won't budge and I wring the nuts off. If I have to pull the head(something I don't want to do)can I just pull that 1 head or do I have to tear the intake and everything off?
View 1 RepliesFour months on and today I noticed my 3M carbon fibre wrapped exhaust tips are beginning to crack and peel in the corners. I am thinking exhaust heat finally drying the glue backing out causing them to dry up like old leaves.
Also after Plasti Dipping my logos I have had no luck with the rear tailgate F Sport logo in removing the fine SPORT centre fill cleanly to reveal the white background on my white GS. Everywhere else went perfect. Not keen on leaving a silver logo with all other blacked out on the back end.
So I believe I have a crack in the Exhaust Manifold... When I rev the car I can hear a slight tick. I had taken it to a shop to do a muffler delete and said that there may be a leak or crack somewhere. The tech said it wasn't too bad but it may be something to keep an eye on. My question is, what would be the best route to go? Is this a common issue with the ISF? I was thinking if it was also possible if it may just be the gasket, which the tech also said it could be. I have a 2008 model with about 113k miles on it.
View 14 RepliesA mechanic reports a "hairline crack" in the exhaust manifold, and that things there (what things???) are all rusted and there might be problems removing manifold. Son's Internet research turns up lots of cases of Volvos with broken bolts from trying to remove rusted manifold. (Of course, you only hear about the bad ones.)
Son says he does not hear any noise (popping) and he does not smell any exhaust. Can we let it go? Is there a stickum repair we could try? (I was thinking of the high temperature cement I used on furnace flue metal duct, but I suspect it would not hold the pressure of the exhaust.)
I have a v10 F250 and I just put on a single chamber flowmaster that sounds really good but I would like the truck to be louder. My question is are there any negative effects on the truck if i get rid of the cat and run a straight pipe?
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