Ford Super Duty (1999-2016) :: 2011 F350 6.2L - Got Codes P0420 And P0430 Even Replaced Catalytic Converters?
Feb 20, 2015
I bought this truck (2011 F-350 6.2l) used a month ago with 125000 miles on it. Of course the MIL light came on as soon as the ink dried. The codes read PO420 & PO430 and my local Ford Service said replace the cats. I said what is the cause of the failure, ford said here is a list of possible causes but it's not reading other codes so they don't know what caused the failure.
Well, I went ahead and replaced both catalytic converters, all four O2 sensors, and I replaced all sixteen spark plugs. Guess what, the MIL light is back on not 24 hours later reading PO420, PO430, and now PO620 and PO645. So I just went back to Ford today and all they did was cleared the codes and told me to call if the light comes back on. They said my PCM is up to date but why it's now reading GENCOM code or AC Clutch code.
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I have recently picked up a 2005 F350 with the 5.4, which has 212k on it. Has a check engine light on for P0420 and P0430, as well as some kind of a 'ignition coil 'D'', I forgot which code it was as I deleted them at first to see which would come back. After driving it, the P0420 and the P0430 came back, but not the other, yet probably. I'm guessing the misfire due to the ignition coil caused the cats to go bad and the 420/430 codes, unless these codes are coincidental and the cats went due to high mileage.
Either way, I'm pretty sure I will need to replace the cats and was wondering what is the cheapest route. Should I get individual cats and have a shop weld them on? Should I go to Advance Auto parts or Auto Zone and get the whole pipe with the cats attached to them already and then get them installed? I anything will involve welding, I would have to bring it in to a shop. Also, in regards to the ignition coil misfire, what a good way to check which one it is?
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I have a 2013 F350 Crew Cab Long bed xl with 128000 miles on it. I just barely bought it from a small dealer and had a check engine light come on for the cats.(P0420 and 0430)
I have spoke with the dealer and he assured me that he would replace the cats. He stated he had O2 sensors replaced and thought he had fixed the problem. Not sure if he replaced all sensors or just the fronts.
He has been avoiding calls lately and will not return my messages. Anyways, My question is what should I be looking for to prevent future cats from going bad. I just ordered a bluetooth OBD 2 scanner and bought the Torque Pro App.
I am not new to working on trucks but they have all been 1995 and older and i am new to anything scanner wise and do not know what I should be monitoring. If I can't get this guy to replace the cats I want to monitor everything to make sure the cats are bad.
BTW, Fuel Mileage is at best 12.3 with an extremely light foot, Driving normal it drops off to about 11.8-12. Is this a normal MPG in these trucks? I have seen post about people getting close to 16 unloaded not smashing throttle?
On another note, I just remembered that my traction control light will come on with no wheel spin at times after starting the truck and driving away.
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The vehicle is a 2001.5 Passat 4 Motion V6. 120,000 miles on the Passat.
The original Cats were replaced 1 month ago after a service station deemed them dead. When the vehicle failed emissions.
The codes were p0430 and P0420 and P411.
Before that about a year ago The O2 sensors were replaced.
After 2 new catalytic converters were installed. The vehicle is still throwing p0420 and p0430 codes.
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I just recently purchased a 2008 ford f350 5.4L gasser, supercab long box. The truck has 167,000km on it. I flew about 700km from my hometown to pick up the truck and drive it home. After driving about 300km I started noticing a few problems.
The engine light codes that have been stored as of now:
P0420 (Catalyst code)
P0420 (Catalyst code)
P0191 (Fuel rail pressure sensor i think?)
The issue I'm having is that the truck has absolutely no power going uphill or accelerating. If I'm climbing a hill and have the gas pedal pushed in at a steady rate its almost as if the transmission wont shift, and if i push harder on the gas the truck begins to shudder. When the truck is cold it runs normal and climbs hills no problem, but once it heats up the problem returns. Another odd thing I noticed under the hood on my drive home was that they disconnected the vacuum line from the fuel rail pressure sensor and simply plugged the line on a random bolt.
Also, the truck apparently has a cam phaser lockout on it and I dont know if that could be causing the issue? Here's a list of some of the troubleshooting ive done so far.
-checked all fuses(start at the basics eh)
-checked resistance of coils(checked out fine, even after engine was warm)
-pulled spark plug 1 and 5, they both seemed fairly clean, not fowled up
-generally looked over all the vacuum lines, seemed fine couldn't see anything else really out of the ordinary
-while the truck was running I used a temperature gauge to see what the exhaust system was doing. On the drivers side when the truck was warm before the cat I had 140C and after the cat it was 80C(good indication the cat is plugged?) The other side tested fairly consistent.
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Have a an 11 f350 6.2 gas throwing p0171 and 0174. Driving the truck it has spark knock pretty bad. Ive parked it at this point. Its a tow truck so I need it fixed and back on the road. I've checked the hoses going to the pcvs they appear to be ok.... Also upon starting the truck it just sounds weak.....
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I own a 2011 F350 dually with the 6.7 in it. It has 136000 on it and zero mods. I was driving over the weekend and the traction control light, brake light, and the ABS lights all came on and the information center displayed Check Brake System. We were towing our 5th wheel when this happened. The brakes on the pickup and trailer both work and we have no problems stopping. About every 15 minutes or so this message pops up and it chimes again. My insight is reading a U0418 code. We are stopped now and the code and alert message is still popping up without the trailer. All fluid levels are where they should be.
We are also getting a check engine light and my Insight is reading the codes P2020 and P20E8.
I can reset the codes dealing with the reductant leakage and low pressure, but not the codes dealing with the brake system.
I have had my pickup in to 2 different ford dealers for these issues and they cannot find anything wrong. I did notice that this time when the Check Brake system warning appeared that the pick up started lunging a bit, we lost power to the stereo and the windshield wipers came on. Our fuel mileage has remained the same and the pickup still tows like a beast.
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2003 f350 2wd 5.4 auto cab and chassis with 40 gal rear tank replaced fuel pump/fuel filter/spark plugs/IAC no codes
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A few weeks back I got my ARK exhaust installed with no problems. Due to some personal reasons I had it removed and my stock exhaust reinstalled by a different shop over this past weekend. I've been driving it fine for the past few days but today I noticed the CEL on with codes P0420 and P0430. I hit up the shop to see what was up and he told me he didn't touch anything that should have caused this. What should I do....
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I have a 2005 F350 6.0 PowerStroke, and I just did the head bolts upgrade to the ARP studs, new EGR cooler and a new stock turbo. Looks like everything came out good, no left over parts or unplugged connectors, all new fluids and fuel filters and oil filter. Did the priming of fuel and oil, the turbo. When it was ready to turn it on, I turned the motor by jumping the starter to build some oil pressure.
Now I turn the key to turn on the truck, it turns with no issues, it sound good, but it will not turn on.
Checked my batteries, they are fully charged, checked fluids, ok, checked oil pressure as I'm cranking it, it looks good.
It still does not turn on.
So, I jumped it with my friends Excursion, after a couple of tries, it TURNED ON.
Let it run for about 3 minutes then turned it off. It sound good just like it did before the upgrade, with an exhaust leak from the turbo.
Went to turn it on again, it turns but it will not start, jumped it again and it RUNS.
Now I let it run for about 30 minutes figured out where the exhaust leak was coming from.
Shut it off, Re seated exhaust pipe with leak, WENT TO TURN IT ON AND IT WILL TURN BUT WILL NOT RUN.
So what checks I can perform to start eliminating possible issues.....
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2007 F350 6.0 .. I let the truck sit for about a week went out to start it truck cranked right up then died now the truck wont start truck was running fine until this I wasn't having any starting problems. the codes are all eight injectors low circuit tested ficm had 48.3 volts...
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My dads truck started misfiring last week, first thing i did was scan the codes and got p0303, p0304, p0305, p0306, and p0308. Its an 08 F-350 5.4...already changed out the spark plugs and the same codes came back. I decided to do some further testing and so far all coils had spark as well as 12.4 volts going to each. I did check the switching signal and that was present as well.
Moved on to the injectors and i checked each connector with my noid lights and it flashed on all cylinders. Did a resistance check on each injector and they all registered 12.4 ohms. We did switch some coils around and all the same cylinders misfire. My next step is to do a compression test.
My biggest question is if there are any common problems with these engines besides the coils, by the way this truck has the brown coil boots and the spark plugs that dont break in the engine.
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We bought the 2010 RX350 a couple of weeks ago and have gotten these codes twice.. I have a good scanner and know what the codes say about Cat's bank 1 and 2 operating below threshold. I know some of you are going to say replace the cat's, others are going to say replace the sensors and neither should be the problem... If it were a cat or sensor, then they would not come in at the identical same time... It has to be something common such as a throttle body, charcoal canister, or another item upstream of the cat's... Not the gas cap either...Maybe a vacuum hose..
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Came out to start my truck today a hit the key and got nothing. After I settled down from being upset about my truck already giving me trouble (bought it in Nov and had 25k miles on it, 35k now) and that I should have stayed with a Chevrolet, I was able to start it by crawling under and jumping the started with a screwdriver. The truck started up no problem and got me home where I did some troubleshooting. Looks like I dont get solenoid power at the starter (just main power), the relays and fuses checked out, anhe d it looks like the key is still programmed.
I had been getting what seamed like a delayed start every now and again that was going on for a while, but thought it was just me. The next items I thought that may be the culprit are the neutral safety switch or the ignition switch. The gear selector seams to work fine and it wont start in either P or N, the backup camera turns on and nothing seams to be incorrectly working on that account. Also, the truck is a 2011 F350 Crew Cab 4wd Lariat with the 6.2 gas motor.
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I took my car to get inspected today and it was rejected because of P0420 and P0430: Both Catalyst system efficiency below... My check engine is also on.
I have the full Meisterschaft exhaust installed (+midpipe) PPE headers and K&N intake. Whats the problem and how can I get this fixed so I can pass the inspection?
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I bought a 2011 F350 that was in a collision. I have done collision repair before but I have not had to deal with air bags... Both driver wheel and passenger bags deployed. I see some for sale on EBAY for around 300 used....do I just by them and install them? Is there a reset or something else I have to do? I see some sell them with the controller as well...do I need that?
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I have an 11 F350 6.7. It has just under 200K miles on it. Yesterday I changed the oil. Very uneventful. Today however, I was driving home, about 100 miles, and my truck's temp spiked. Not like a little spike, but jumped to the 3/4 mark(if there was one) then slowly kept rising to to the overheat mark. I pulled off onto the hard shoulder waited an hour or so to let it cool down, then finished the drive home. All the way home my temp gauge seemed like it was on some sort of drug. It would jump a needle width when I would have to accelerate, then slowly cool to normal after I got up to cruising speed.
When I got home I checked the oil level and it was spot on in the "normal" range. I haven't used a different type/brand/weight of oil in the last 100k miles. Did something just give out on my truck? I had the coolant flushed and replaced at the dealer within the last 10k miles. Up until this point this truck has been exceedingly reliable. I pull a 13k 5th wheel once a month and drive about 40k-ish miles a year.
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I have a 2006 F350 SRW 4WD 6.0 with 127000 miles on it. A couple of weeks ago it, pulling out of my driveway, it hesitated and tow haul started flashing. I had codes pulled and it showed P1780, P0751, and P2700. After turning off, codes were gone and tow haul off. Ran fine since then every day. Yesterday while going about 50 mph it started acting like it was in neutral (revving up), nothing happened when mashing the accelerator. Coasted to a driveway and truck would not move, only sounded like it was in neutral.
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I have a 2011 F350 with the towing package. I got it used as it and it was a northern truck. My towing mirrors won't extend in or out. They fold and unfold just fine. When I press the button to telescope them I can hear the motor running so I know the fuse is good. I took the glass off the mirrors and scraped some salt out of the joints. I sprayed some lube on the joints as well but still no luck. I also tried forcing them but not too much to avoid breaking them.
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I have a 2011 F350 with camper package (didn't want it). When I drive on a bumpy road (without 5th wheel), the truck suspension does not absorb the shock. The ruts just throws the truck side to side. Really hard, so I can't go on a dirt, rough road. On one bump it poped off my rear tire cap.
My problem may be with the camper package trying to keep the truck from going back and forth.
There is a 7/16 inch steal rod going from the truck bed, around the differential, and back up to the other side of the truck. Is that the rear stablizer rod?? Can I disconnect it? What would be
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2011 F350 with fluid leaking in through the firewall. Does the Hydro booster have to be replaced or is there a gaskets or seal on the rod that goes to the brake pedal?
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