Ford Super Duty (1999-2016) :: P0420 Code - Leak At The Joint Where Exhaust Manifold Meets Pipe Beside The Engine

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?

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Ford Super Duty (1999-2016) :: Getting Exhaust Pipe Out?

The exhaust system from the downpipe back was stolen off this auction truck I bought, so I bought an even worse truck for parts but I'm struggling to get the exhaust off. Is there a trick to it? Does it come out going forward over the rear axle or pull out from the back? Should I just cut it and have a shop weld it back?

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Ford Super Duty (1999-2016) :: 2001 F250 5.4L - Smoke From Exhaust Pipe

2001 F250 5.4L - I recently had my muffler changed and the pipe flange on the tailpipe up by the exhaust manifold welded back on. I haven't driven my truck much this past summer so when I took it in to get the muffler fixed the front caliper got temporarily stuck like it tends to do. It eventually freed up but in the meantime I noticed a hot oil-like smell coming from my truck from time to time. I chalked it up to either the new muffler or maybe it just smelled hot and it was instead the front brake caliper still being stuck. One day I'm driving down the interstate and I start uphill. I noticed smoke behind me and pulled over. The brake was not overheating so I got underneath the truck.

The smoke was rolling off of the exhaust pipe all the way down it all the way up near the manifold but mostly around the muffler. The smoke quickly went away while I was under the truck. I noticed it doing this only while the engine is under a load like going uphill. Just driving around town nothing is noticeable. When it does smoke I lose power. Once I slow down for awhile and then gradually speed back up things seem okay. I checked the oil.

Normally I don't lose a drop but this time I was a quart low but the oil on the stick was clean. It's been awhile since I had my oil changed but very little mileage on this change (my truck has sat awhile). My truck doesn't leave a drop of oil under it when it sits. From what I read you can remove the radiator cap and start the truck to see if it's a blown head gasket. At least that one of the things I can check easily without actually taking the plugs out even though the oil looks clean. The radiator has not lost any fluid. The transmission fluid is also good. It's been doing this for about 3 weeks.

I still drive it to and from work (about 15 miles round trip) everyday but I take it easy on the acceleration and stay on city streets. I looked into the EGR system online for my truck and instead found an EVAP purge solenoid/valve in its place on the passenger side. I don't have any service lights on the dash. I went to Autozone and had them scan it but nothing came up. I read somewhere that either the purge solenoid assembly or EGR (I can't remember) can burn up the board if it goes bad resulting in no code showing up.

I recently changed a vacuum valve out that went bad that controlled the vacuum chamber used to operate the hubs on the 4WD. The 4WD is now operational again. Assuming the head gasket is not blown, what to check for next?

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Ford Super Duty (1999-2016) :: Green Substance In Snow Near Tailpipe Or Exhaust Pipe

Had green substance in snow near tailpipe or exhaust pipe ! Im sure this is not good (most likely antifreeze ) Truck has about 82000.00 miles on it and has towed sleds to vermont and back each year about 6 times or so .Looks like a head gasket, any thoughts on this problem ,overflow tank is down a little below cold minimum line. Is a additive possible? I am original owner and have not beat on truck ,oil has been changed regularly ,tranny and coolant have been changed. 2004 F250 ext. cab 5.4 v8 gas...

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Ford Super Duty (1999-2016) :: Exhaust Manifold Leak Repair

The exhaust leak is not too horrible, but, enough that I need to address it soon. Only on the driver's side; (today).

I'm planning on having a lot of PB blaster on hand, torch, broken stud removers, screw/stud extractors (easy outs), ...a hammer. Maybe a few cold Budweisers

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Ford Super Duty (1999-2016) :: Exhaust Manifold Leak Causing CEL To Blink?

I've got a 2006 F250 5.4l. Recently Ive had an issue when I am driving, usually when the engine is at 3k+ RPMs, where the engine will lose power and the cel with blink. Usually it only takes a few seconds for the blinking to stop and the engine continues as normal. Now, I know that at least one of my exhaust manifolds are leaking.

Could it be that the engine is not receiving enough back pressure and that is causing it to lose power? I had a similar issue last year, basically the same symptoms, and it turned out that I had two cylinders misfiring. I replaced the coil packs and that fixed it. This time there are no codes referring to a cylinder misfire. There is a code for EVAP leak (I think), but I was told it was nothing to worry about.

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Ford Super Duty (1999-2016) :: 2008 F250 - Exhaust Manifold Leak

is there a set of headers for my 2008 f250 5.4 rwd that will install somewhat easily without me throwing tools across the garage? I see a lot more options for the older trucks. I have a pretty annoying exhaust manifold leak and I figure I might as well throw some headers on if im gonna be in there. I really want to go for sound rather than power. I think I saw a set by flowmaster that looked decent.

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Ford Super Duty (1999-2016) :: 2003 F350 V10 - Exhaust Manifold Leak?

2003 F350 short bed 6.8L V10---On start up a slight tap sound, almost like a cranky lifter, but it is an exhaust manifold leak. At the bolts, I am not sure. This has been this way for 5 years, no better no worse. After I run about 2 to 3 minutes it seals itself. Not a hint of noise. Due to heat, something is expanding to seal it (aluminum).

At my annual PA. State Safety Inspection the Tech says 'that has to be corrected if it worsens', but It does not fail inspection. This puzzles me.

How is the call made for correction. A flip of the coin, a guess and is it serious enough to fail inspection. Is this normal with the 6.8L or V10s. I know the cost involved for a fix is big league, but can it be justified. TRUCK RUNS GREAT !---

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Ford Super Duty (1999-2016) :: 2011 - Turbo Exhaust Leak - Smell In Cabin

I have been smelling raw exhaust in the cab, especially when the weather is colder and when standing still.

I took it to the dealer and in the process of fixing minor coolant and oil leaks on the turbo, they located a small exhaust leak with visible soot on the back side of the turbo.

They tell me that there is no way to repair it and that only Ford can rebuild or repair these turbos.

2011 SD 6.7

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Ford Super Duty (1999-2016) :: F250 - Exhaust Manifold Leak On Passenger Side

Should I attempt to replace the passenger side manifold with what I can get from Napa. I would rather pay 100 bucks for everything and do it myself. But, Im concerned about replacing the studs. From what I have read the studs seam to be the problems for most leaks on these vehicles. I have torque equip. and other tools to do the job. Just want others opinions about this project. How hard really is it? 1999 5.4L F250 SDuty....

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Ford Super Duty (1999-2016) :: Rough Idle - Exhaust Leak Between Manifold And Turbo

I have an exhaust leak between the manifold and turbo ( in the flex part of the pipe) on my 2008 6.4 f250 would this create rough idle when at operating temp?

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Ford Super Duty (1999-2016) :: 2006 F250 - Leak At The Driver Side Exhaust Manifold

I have a leak at the driver side exhaust manifold. Its a little tough getting at it to tell if its a lose bolt, crack or bad gasket. What would be the best way to get at this area? Should i remove the tire and wheel well or is their a better way. If i can get at it i may replace the manifold all together.

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Ford Super Duty (1999-2016) :: 2002 - Exhaust Have Periodic High Pitch Sound?

Is it common for the exhaust to have a periodic high pitch tinny sound?

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Ford Super Duty (1999-2016) :: 2003 F250 V10 - Heat Shield Rattle That Sounds Like Exhaust Leak During Loaded Acceleration

I recently purchased this truck and have towed a couple of times with it. It has 98,000 miles and I do not know if the automatic transmission fluid has been changed. Should I have it flushed or drop the pan and change it? I have a lift so doing the change is no problem, although it might be worth it to pay a transmission shop to do it.

Also, I hear what appears to be like a heat shield rattle or something that sounds kinda like an exhaust leak during loaded acceleration. What to look for to locate the noise? One last question, the air bag light is on sometimes then off sometimes. Any known air bag light issues? I love the truck, hate the gas mileage!

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Ford Super Duty (1999-2016) :: 2002 E350 Start To Flatten Out And Smoke Out Of Exhaust During Acceleration

I had a post a couple of months ago about this E350 van I purchased with the 7.3. It would leave me stranded every few weeks and I replaced the injector oil pressure sensor and the camshaft position sensor. This truck has a intermittent running problem that cannot be pinned down to hot or cold.

It runs and idles well but sometimes during acceleration it will start to flatten out and smoke out the exhaust. Giving more accelerator pedal powers through the flat spot and the truck runs smooth. It does not do it every time. It does it hot or cold, wet or dry, city or highway, If this was a gas engine I would be replacing the fuel pump or checking a fuel starvation issue but the white smoke tells me that it has unburned fuel.

A cylinder contribution test passes fine. I monitored engine data with a Snap On Verus pro and compared oil pressures with another 03 7.3 I have and they are too close to the same. It starts fine, no issues there. It may take off great one time and buck and smoke the next. I swapped out the throttle position sensor with the other 7.3 and no change. I swapped out the injector control module and no change.

I've thought about injector Orings but I would think the problem would be consistent. I've changed engine oil, checked fuel pressure, changed fuel filter, and drained the fuel system to be sure no water is in the separator. This engine was rebuilt about 30k miles ago. If you floor the accelerator in park it will rev up, flatten out, smoke and buck for about 2-3 seconds, and then take off like normal. I pulled a trailer with it a couple of days ago and wasn't impressed at all. I have a 6.5 GM that seems to have more power than this.

I thought maybe a sticking injector and I added a half gallon of two cycle oil to the fuel to see if that might work. It hasn't. It just seems like it is flooding at a certain rpm and clears itself after a couple of seconds. There are no codes being thrown in the pcm. I am at a loss.

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Ford Super Duty (1999-2016) :: 2002 F350 - Gas Oil Leak At The Back Of Engine

I have a 2002 V10 F350 6.8L that I recently purchased at auction and am fixing up. I've made good progress already and replaced many of the suspension components so that the tuck drives straight. It does however have an oil leak that seems to manifest of heavy acceleration.

I'm not sure exactly where from as I have not crawled under the car, but I can see a drip land right on the Y pipe coming out the exhaust manifolds. There is enough of a drip to create quite a smoke storm under the hood. Any common areas to look for?

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Ford Super Duty (1999-2016) :: 2002 F350 - Popping Sound Coming From Exhaust And Lose Power

I have a 2002 F350 with the triton 5.4. For the last week it has been running like crap. I just did my plugs about a month ago. I don't know if it's a miss fire or bad fuel or I don't know what it could be. It's a popping sound coming from my exhaust and when it happens I lose power. It happens off and on. One second it will run fine and normal and the next runs bad. What it could be. Today I just changed my fuel filter and added STP octane boost and fuel injector cleaner. Haven't seen a difference yet.

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Ford Super Duty (1999-2016) :: 2002 - Leak Beneath Driver Side Manifold?

This is right beneath the drivers side exhaust manifold. Not sure what it is but it appears to be leaking oil. Tried to tighten it and it seems snug. Can it be the gasket has gone bad for whatever it is?

Truck is 02 SD, 7.3, 4x4, with 512k miles.

Not really leaking bad but if easy enough to fix why not. It also appears to be leaking on the same side cylinder bank back near the rear of the valve cover. Need to see if I can snug that up as well.

It's right in the center of the pic. It's a bolt going into some sort of fitting housing that ties into the back portion of the block. Ignore the coolant streaks on the coolant hose. This is the oil leak in the darker center of the pic.

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Ford Super Duty (1999-2016) :: 2002 F250 - Diesel Leak On The Back Of The Engine

I have a 2002 Ford F2 50 that has a diesel leak on the back of the engine. I've already replaced the drain valve that was leaking. Then I noticed that the front of the engine was dry now but the back of the engine still has some pooling With a very small drip off the back of the engine between the transmission housing and engine. Not as bad as it was of course But still a small drip. Where this may be coming from? And how to fix it?

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