Ford Super Duty (1999-2016) :: CEL Codes P0420 And P0430 - Catalytic Converters?
May 18, 2015
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?
View 4 Replies
Advertisement
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.
View 2 Replies
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.
View 4 Replies
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.
View 14 Replies
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.
View 9 Replies
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....
View 3 Replies
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..
View 14 Replies
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?
View 4 Replies
ill be replacing my muffler here soon, its rusted out blows smoke out all the rust holes, and so on. gonna replace with a nice flo master. Question is, when is it time to replace the catalytic converter? 15 years old and 93000 miles, it still seems like its in good shape, but could it be getting clogged? just from the sounds of the exhaust the past few months, it almost sounds like the truck is somewhat congested. The power from the engine is kinda week, but that's the engine itself. I have no real problems getting up to speed. my hesitation issues from before turned out to be water in the gas tank. Figured since im down there does it make sense just to bite the bullet and throw a new catalytic converter on?
View 8 Replies
After installing the lift on my 6.2 F250 I ran into the well known issue where the front drive shaft hits the catalytic converter. The two options I was told that I had was to weld in a slight jog into the exhaust guts to go around the cat or to get a smaller diameter drive shaft... I had the truck down at my local exhaust shop to have a new cat back system installed and I had the exhaust guy throw in his .02 about what to do.
He came up with a super easy/obvious fix. When the left and right exhaust meet up before the collector there is a welded brace that secures both sides together. He cut about .5" out of it and loosened the flanges and shifted the exhaust over. Welded the brace back up... Works perfect.
View 3 Replies
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?
View 5 Replies
I have a farmer with a 2001 F350 SuperDuty with a 7.3 broke down at his farm a few weeks ago. Asked me to come look at it. No start issue. I use the Matco Determinator in my shop, so I take it with me for starters,after running diagnostics I come up with p0340, p0344,& p1670. After googling these codes I make the determination idm is bad. Farmer agrees to let me try one, install a new BorgWarner unit from O'Reillys, and bam truck fires up. I reinstall inner liner clear codes and go about my way. Few days go by and farmer shows up again, truck run a few miles around farm,spits sputters, and dies again. Go run my checks and same thing. Farmer told me in nthe beginning he had CPS changed per the recall. I had idm replaced under warranty truck fires back up, so this time I drive it , and get bout 2 miles down road truck dies. Had to tow strap back to shop. Got a new cps from ford replaced truck fires up. Farmer takes truck drives for bout a week guess what truck gets towed back. 3 codes are back, along with a few others related to low voltage. This time I replaced idm for a 3rd time, truck fires up. Today I let it idle for 3 hours in lot, decided t test drive, got less than a mile down road, truck shudders chi engine light comes on and it wants to die but keeps running. I am able to get turned around but it dies before I can get back home. Run codes and get same 3.
View 1 Replies
What these codes stand for.
- P1316
- P0640
View 4 Replies
I have a 2003 f350 v-10 drove it yesterday to get fuel, went to start it after fueling. No start, no lights dash was gauged was acting odd, and clicking under the dash from behind fuse box. did get it to start after a while, put my foot on the brake to go into drive, never made it ... truck died I do have remote start system thought it was that with the brake pedal issue. disconnected complete system. no change. Had it towed, home now no nothing, connect a battery and just clicking from under dash no start ?????? not a battery, won't even jump. The battery is good, power to starter, Posted this also in light-duty trucks wrong place think this is the better place. Gauges pinned to right with key off
View 3 Replies
I have a 99 F450. I have an ABS light on. No codes (at least not that my code reader can pickup), but I am also not having any issues. Brakes work fine. What to swap out or where to look?
View 7 Replies
i have p0750 shift solenoid A error and p0733 gear 3 ratio error and i was woundering how i fix them problems
View 9 Replies
05 5.4 F250 4x4. Keep getting those codes. Can't find any vacuum leaks. swapped rear O2 sensors. Fuel filter twice in last 11k miles last time was 1k ago. Will the 430 code cause the lean codes from a bad cat? I've been getting the 430 code for at least 4 mo's.
View 6 Replies
My truck was running fine, it's stock as far as I know. Shut it off, it sat and cooled off for a while. When I tried to crank it, it wouldn't start, threw 2 codes. P2285 and p 2623. I unplugged the icp sensoran tried to start, no start. Plugged it back in and it started fine for the rest of the work day ( I work out of it). Drove it the next day without any issues. Today went to start before work and no start with the same 2 codes. What should I check first? I don't have any monitor yet. Bought the truck a month ago as a work truck. It has 164000 miles.
View 4 Replies
What would be causing my left and right bank lean codes? Truck still seems to run fine. I have also been getting number 6 misfire. all within the past week. I know Its due for a tune up but would a simple tune up fix these codes. Also besides plugs and primary fluids what else should I be changing. I don't want to be getting to involved just the main stuff.
View 5 Replies
2003 f350 2wd 5.4 auto cab and chassis with 40 gal rear tank replaced fuel pump/fuel filter/spark plugs/IAC no codes
View 7 Replies
I recently went to my mechanic after living with a very small leak right between the catalytic converters and the transmission for about 4 months. (it dropped a dime-sized mark about once every 5 days.) he said it was the rear output seal on the transmission but wouldnt touch it since there was no easy way to get to it and didn't want to drop the whole exhaust system. so off to vw dealership (wow, i guess a lot of people complained because they replaced everyone there and they're more friendly and efficient. my car usually sat there for 3 weeks before they even looked at it. (appointment mean nothing to those people.) but after dropping off my car i got a call within an hour telling me it was a cracked ventilation hose. they ordered the part and repaired it within a week (another first.) i also had them change the trans fluid and filter and the car ran smoother and a lot better and i checked for 2 weeks for leaks and none were there but within the past week, it's back and leaking the same way. the puddle is about the size of a penny so back to vw on monday.
View 1 Replies
