Question about 2005 Ford F 250 Super Duty

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2005 ford f250 6.0 liter turbo diesel has a misfire in cyclinder 6 code p0306

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6ya6ya
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Posted on Jan 02, 2017

  • 68 Answers

SOURCE: 2004 Ford f250 7.3 Litre Powerstroke turbo Diesel overheating

hi themulks
dave here

if you have a rad cap open it and check your coolant level. if it is low fill the rad and leave cap off while you then put the recovery resorvoir at the proper cold level. Move your way along to the thermostat and look for a screw and nut at the top of the housing. If there is one then this is the highest point of the coolant in your vehicle and you will bleed it by opening this hole and running your engine until only coolant flows from the exposed hole. Do not remove the screw just turn it until the hole in the side is revealed. I basically almost remove the screw (till it kind of wobbles) and then turn it back in til it stable (like 1 turn). Be sure that the coolant is flowing without bubbles(air) and not just kinda trickling with short pauses.
If the housing for the thernostat is lower than the rad cap then you bleed it through the rad. Wait for the thernostat to open and the level to go down and then refill it and watch to see no more bubbles (air) escaping. Once the vehicle gets hot you may have to wait for the engine to cool(ie) turn it off for a while and redo it. Also if you are using the thermostat bleed hole be sure to put the rad cap back on before you start the bleed process and keep your eye on the coolant resorvoir adding coolant as needed so you dont **** more air into the engine.

Posted on Jul 20, 2008

  • 56 Answers

SOURCE: ford F250 6.0 litre turbo diesel won't start.

check the fuel cut-off switch under the glove box.

Posted on Jul 21, 2009

  • 15 Answers

SOURCE: Misfires in Cyl. 5 and 6, after changing problem continued

white smoke indicates the engine is burning antifreeze, you could have head gasket issue, if thats the case the antifreeze is getting in the cylinders and the engine is burning it. could be a stuck exhaust valve( i doubt it). find out from ford what that code indicates, that would be a better clue than tearing into the motor

Posted on Jul 21, 2009

  • 82 Answers

SOURCE: ford e 150 4.2 Misfire cylinder 6

do a compression test, you may have a bend valve , I'm assuming its not getting overheating so I don't think its the head gasket..a compression test can give you the answer..hope this was very helpful...thanks

Posted on Aug 08, 2009

  • 4 Answers

SOURCE: i ahev a 2005 ford f350 with 6.0 diesel, i am

Bad Injectors most likely. I have a 2006 f-350 and was having the same problem. I ended up changing the fuel pump and 4 injectors.

Posted on Jan 29, 2010

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Misfiring. Error codes p0306, p0351, p0352


p0306 refers to cylinder 6 misfire detected===causes engine mechanical fault--wiring---ignition/fuel system--injector ---ECT/MAF sensor---ECM
IF there was a mechanical fault (hydraulic follower ) or valve it would be there most of the time and not just on start up. Possible injector fault but I would be inclined to check out the MAF sensor codes p0351 &2 refer to ignition coil A and ignition coil B primary /secondary--circuit malfunction === causes --wiring--ignition coil--ECM ( all causes for the both)
going on this check out the coils and check that the wiring and connections are clean and tight. basically I would be inclined to change out the coils and check /replace the MAF sensor.
change the engine --sounds like advice to get some extra money out of you.

Apr 27, 2014 | 2005 Ford F-150

1 Answer

2001 ford taurus 3.0 v6 code p0306 misfire


Please go to this page for engine misfire causes.

Aug 08, 2012 | 1997 Ford Taurus

1 Answer

P0306 and P0316


Okay, you were getting code P0306, and a P0316. You have replaced plugs and swapped coils around are you still getting the code P0306? or is it a different code for a different cylinder now? Replacing your crankshaft position sensor in this case will merely waste your money. Its doing its job, the P0316 is telling you you had a misfire in the first 1000 revolutions of your engine at startup, the P0306 is telling you its probably cylinder #6 that had the problem. there is no code there indicating your CKP is bad.

Now if you swapped your coils and the misfire is still on cylinder 6, its either injector problem, or base engine. If the misfire has moved to another cylinder, replace that COP.

Hope helps.

Mar 21, 2012 | 2005 Mazda Tribute

1 Answer

2006 f350 6.0 powerstroke diesel missing. help


there is no wastegate on a 6.0l turbo. its a variable geometry turbocharger and doesn't need it. i have never seen a turbocharger cause a misfire, the turbocharger is most likely not your problem. if you didn't clean the intake out when replacing the egr valve there is a really good chance that the egr is bad again. also, a bad egr cooler can cause repeat egr failure. also, fuel injector control module is a common cause for misfire

Feb 18, 2012 | 2003 Ford F350 Super Duty DRW SuperCab

1 Answer

I have a 2005 Ford Freestar. It has been bucking here and there and today the engine light came on and is bucking a lot. What could be the problem?


Sounds like you may have a misfire. Scanning the computer for codes will help you narrow down the possibilities. If it is a misfire you will see a code or codes similar to P0301 thru P0306 which are specific cylinder misfire codes. P0301 being cylinder number 1, P0302 being cylinder number 2, etc. You can then focus on those cylinders to see whether they are getting spark or the condition of the spark plugs.

Jan 19, 2011 | Ford Freestar Cars & Trucks

1 Answer

I have a 6.0 litre diesel and I have oil leaking


turbo seal is leaking, that is the only way this could get there.

Dec 04, 2009 | 2005 Ford F 350 Super Duty

2 Answers

How to turn up the turbo psi boost in a 2005 ford f-350 6.0 liter Superduty


You just can't turn up the turbo boost any more with the new engines. If the turbo start to boost more then the PCM is programed to, it will cut the fuel pressure down and you loose more HP. Here is a link for you if your looking to get good HP out of your 6.0 liter diesel. You can replace the wast gate for the turbo with a higher PSI rating but your going to have to by a electronic boost builder for the PCM so it will not kill the fuel pressure soon as you start making more boost. http://www.thoroughbreddiesel.com/bd-diesel/turbo-boost-builder.htm and http://innovativediesel.com/ Good luck and hope you get the HP your looking for to get out of your engine.

Oct 31, 2009 | 2005 Ford F 350 Super Duty

1 Answer

Misfires in Cyl. 5 and 6, after changing problem continued


white smoke indicates the engine is burning antifreeze, you could have head gasket issue, if thats the case the antifreeze is getting in the cylinders and the engine is burning it. could be a stuck exhaust valve( i doubt it). find out from ford what that code indicates, that would be a better clue than tearing into the motor

Jul 19, 2009 | Ford F-150 Cars & Trucks

2 Answers

96 bmw 740il misfire


This is a pretty common problem. I would change your valve cover gaskets. They run around ~ 50 bucks. If they are bad it will leak oil into spark plug well and cause a misfire. Very known on the 740.. Also if tune was not anytime not too long ago id change spark plugs while you at it. Then clear the computer and if you still get misfire on 8 try changing the ignition coil which is right about the cylinder with cylinder ignition coil 5. clear the computer. if you get random misfire and misfire cyclinder 5 after then its your ignition coil. parts store runs around 100 bucks

Dec 22, 2008 | 2005 Hyundai Santa Fe

2 Answers

Cylinder 1 misfire code p0301


kenracer yes our codes p0301 and p0306 is the #1 and #6 misfire

Jul 28, 2008 | Ford Taurus Cars & Trucks

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