Ford F-150 - Single Cylinder Misfire
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Date: 2020-08-05
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Comments and reviews: 10
Fran
Thanks for the video on single cylinder misfire. I came across your video while trying to troubleshoot my P0303 cylinder 3 misfire- Generic error code.
I have a newer F-150, a 2004 heritage with a 4. 2L V6.
The lack of information online regarding WHAT COMPONENT might be the culprit, especially for my model/year vehicle was hair pulling to say the least.
Long story short(er, my V6 has a single Ignition Coil and I was getting a 2nd DTC error code as well.
DTC code P0316 Misfire in the First 1000 Revolutions.
Note: As soon as the SERVICE ENGINE LIGHT came on I hooked up my innova 3100 scan tool and drove with it. I hooked scan tool up later to my PC to review/dump data and look for a resolution.
The 4 choices of items I found to try replacing was:
1. plugs
2. plug wires
3. ignition coil
4. fuel injectors
The easiest and most logical possibility (to me, in my particular case) was the ignition coil.
So I went online to search for local sources that had one IN STOCK.
I found the local O'reillys had a lifetime warranty Masterpro ignition coil.
In stock and the reviews were 5 star.
I diagramed and labeled all cables before disassembling old ignition coil.
Then installed the new ignition coil.
Replaced cables according to labels/diagram.
Everything was normal'd back up to how it was initially, (but with new ignition coil.
I reconnected scan tool and went for a test drive. Both on hwy and around town.
Without any intervention by me, the SERVICE ENGINE LIGHT had gone out
(I didn't have to manually reset it via the scan tool.
- No more DTC codes came up.
- Scanner reported no new codes.
- no skipping, no misfiring and no jerking at any speed.
Just wanted to pass along WHAT COMPONENT exactly I replaced, in order to fix my F-150 heritage.
I just hope it helps others that have a similar P0303 DTC code problem and who come across this particular video (though my F-150 is a different year/model/engine size than the one in your video.
Whether it is a single cylinder misfire or a P030x cylinder misfire - Generic, videos such as this are a great help to affected vehicle owners.
Thanks again to the video producer.
reply
Thanks for the video on single cylinder misfire. I came across your video while trying to troubleshoot my P0303 cylinder 3 misfire- Generic error code.
I have a newer F-150, a 2004 heritage with a 4. 2L V6.
The lack of information online regarding WHAT COMPONENT might be the culprit, especially for my model/year vehicle was hair pulling to say the least.
Long story short(er, my V6 has a single Ignition Coil and I was getting a 2nd DTC error code as well.
DTC code P0316 Misfire in the First 1000 Revolutions.
Note: As soon as the SERVICE ENGINE LIGHT came on I hooked up my innova 3100 scan tool and drove with it. I hooked scan tool up later to my PC to review/dump data and look for a resolution.
The 4 choices of items I found to try replacing was:
1. plugs
2. plug wires
3. ignition coil
4. fuel injectors
The easiest and most logical possibility (to me, in my particular case) was the ignition coil.
So I went online to search for local sources that had one IN STOCK.
I found the local O'reillys had a lifetime warranty Masterpro ignition coil.
In stock and the reviews were 5 star.
I diagramed and labeled all cables before disassembling old ignition coil.
Then installed the new ignition coil.
Replaced cables according to labels/diagram.
Everything was normal'd back up to how it was initially, (but with new ignition coil.
I reconnected scan tool and went for a test drive. Both on hwy and around town.
Without any intervention by me, the SERVICE ENGINE LIGHT had gone out
(I didn't have to manually reset it via the scan tool.
- No more DTC codes came up.
- Scanner reported no new codes.
- no skipping, no misfiring and no jerking at any speed.
Just wanted to pass along WHAT COMPONENT exactly I replaced, in order to fix my F-150 heritage.
I just hope it helps others that have a similar P0303 DTC code problem and who come across this particular video (though my F-150 is a different year/model/engine size than the one in your video.
Whether it is a single cylinder misfire or a P030x cylinder misfire - Generic, videos such as this are a great help to affected vehicle owners.
Thanks again to the video producer.
reply
Troy
Love your videos & how informative you make them. I'm having a problem I've never seen or heard of & is unbelievability hard to even admit but here goes. My 97' F-150 4x4 with 4. 6L has been problem free for 210k with exception of a GEM module messing with a few things intermittently a while back (at about 185k mi) but now I'm getting a misfire in cylinder 3 pretty regular now & I've checked the coil packs they're showing good, same with the plug wires so naturally I moved on to the plugs & here's the hard to admit part. I CAN'T NOT GET THE PLUGS OUT OF CYLINDER 3 OR 4? I have spent literally a full day in total just on getting those 2 plugs out I'm at a loss? Can't see directly into those 2 holes but can't see any obstruction with a light & mirror that would could or should stop the plug socket from seating around the plug to turn it but for some reason it just will not grip the plugs so I can get them out? You ever have anything like this or have any suggestions for. Solving the stubborn or invisible obstructions?
reply
Love your videos & how informative you make them. I'm having a problem I've never seen or heard of & is unbelievability hard to even admit but here goes. My 97' F-150 4x4 with 4. 6L has been problem free for 210k with exception of a GEM module messing with a few things intermittently a while back (at about 185k mi) but now I'm getting a misfire in cylinder 3 pretty regular now & I've checked the coil packs they're showing good, same with the plug wires so naturally I moved on to the plugs & here's the hard to admit part. I CAN'T NOT GET THE PLUGS OUT OF CYLINDER 3 OR 4? I have spent literally a full day in total just on getting those 2 plugs out I'm at a loss? Can't see directly into those 2 holes but can't see any obstruction with a light & mirror that would could or should stop the plug socket from seating around the plug to turn it but for some reason it just will not grip the plugs so I can get them out? You ever have anything like this or have any suggestions for. Solving the stubborn or invisible obstructions?
reply
Justin
diagnosing correctly is the main priority as a shop mechanic/owner. it's a 50/50 shot of guessing right without diagnosing on this. he spent more time, but less parts. in all honesty he's just an honest mechanic. The book time on this diagnosis alone is probably 1. 5h, plus the repair, another. 5. He may charge 2 hours. but at least he spent and hour doing the job instead of 15 minutes like some shops do. and he makes sure its correct unlike others. either way your paying for 2 hours of work, and if you don't know that, well, i'm sorry. infact he may charge less because he didn't spend that much time on it. so let him do his thing. i this video he is spending extra time showing you how he diagnosis. that takes extra time explaining and moving the camera around.
reply
diagnosing correctly is the main priority as a shop mechanic/owner. it's a 50/50 shot of guessing right without diagnosing on this. he spent more time, but less parts. in all honesty he's just an honest mechanic. The book time on this diagnosis alone is probably 1. 5h, plus the repair, another. 5. He may charge 2 hours. but at least he spent and hour doing the job instead of 15 minutes like some shops do. and he makes sure its correct unlike others. either way your paying for 2 hours of work, and if you don't know that, well, i'm sorry. infact he may charge less because he didn't spend that much time on it. so let him do his thing. i this video he is spending extra time showing you how he diagnosis. that takes extra time explaining and moving the camera around.
reply
Justin
I know OBDII was required by 96, just curious if you know how many makes waited that long. I bought a scanner with all the adapters because my 94 camry had the round plug i wasnt familiar with. Later to find out it had OBDII connector hidden away as well, so thats all I've ever used. OBDI i did the jumper wire, money light flash. I should try that round connector and see if i see anything extra being i suspect the other connector is PRE OBDII spec and may fall short. although at 300 thousand miles, still no issues. Even Scotty doesn't recommend a toyota with that many miles as a daily driver and it's been mine for 7 years. Never left me hanging.
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I know OBDII was required by 96, just curious if you know how many makes waited that long. I bought a scanner with all the adapters because my 94 camry had the round plug i wasnt familiar with. Later to find out it had OBDII connector hidden away as well, so thats all I've ever used. OBDI i did the jumper wire, money light flash. I should try that round connector and see if i see anything extra being i suspect the other connector is PRE OBDII spec and may fall short. although at 300 thousand miles, still no issues. Even Scotty doesn't recommend a toyota with that many miles as a daily driver and it's been mine for 7 years. Never left me hanging.
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MrGardman
I know this is an older video so my comment won't be seen by many people, but I agree with the way you went about this diagnosis. I owned a large independent garage back in the 70's and 80's and if a customer brought in a vehicle with an apparent misfire like this, we would do a visual inspection for something out of whack. If that showed nothing, the first thing we would do is roll the Sun scope over and do the exact same thing as you did here.
reply
I know this is an older video so my comment won't be seen by many people, but I agree with the way you went about this diagnosis. I owned a large independent garage back in the 70's and 80's and if a customer brought in a vehicle with an apparent misfire like this, we would do a visual inspection for something out of whack. If that showed nothing, the first thing we would do is roll the Sun scope over and do the exact same thing as you did here.
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Justin
it is far cheaper to replace your own wires that go to a shop, that being said. some cars it takes forever like my 99 avenger where you have to take off the intake. weigh your time vs. cost. i woulda threw 35 bucks for new wires at that truck and took my chances after testing each wire with a timing light. i hope would. but after that if your not comfortable, go to a decent shop if you can find one. they are very hard to find.
reply
it is far cheaper to replace your own wires that go to a shop, that being said. some cars it takes forever like my 99 avenger where you have to take off the intake. weigh your time vs. cost. i woulda threw 35 bucks for new wires at that truck and took my chances after testing each wire with a timing light. i hope would. but after that if your not comfortable, go to a decent shop if you can find one. they are very hard to find.
reply
Garth
How sad this is for the customer who had the truck in the shop for maybe this same issue. Those plug wires didn't look so new so you really have to wonder. The best solution for this old truck is a good high end set of new ignition wires and be done with the set that had the issues. They are cheap enough to validate the expense to trash them and move on. Shame on the other shop as they proved they know little about diagnosis.
reply
How sad this is for the customer who had the truck in the shop for maybe this same issue. Those plug wires didn't look so new so you really have to wonder. The best solution for this old truck is a good high end set of new ignition wires and be done with the set that had the issues. They are cheap enough to validate the expense to trash them and move on. Shame on the other shop as they proved they know little about diagnosis.
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Eddie
I am the basic mechanic for the company I work for. If something is beyond me, I just tell the boss send it to a real mechanic.
We had this truck that had a misfire, boss didnt really care to much about it. Heavy Duty F350 engine doing lighter work then the F150s in our fleet. 2 years with the misfire, I finally decided to take a closer look at it. spark plug wasnt even plugged in. Plugged it in, money light went away.
reply
I am the basic mechanic for the company I work for. If something is beyond me, I just tell the boss send it to a real mechanic.
We had this truck that had a misfire, boss didnt really care to much about it. Heavy Duty F350 engine doing lighter work then the F150s in our fleet. 2 years with the misfire, I finally decided to take a closer look at it. spark plug wasnt even plugged in. Plugged it in, money light went away.
reply
Larry
my 5 litre f-150 misfires #8. I took it in and they told me it could be burnt valves if new spark plugs don't work. engine light goes on for a week then off for a week. new plugs and 600 later still have engine light. going to buy a new wire with ends and replace that myself. see what happens. great video, thanks. don't know how to get back to this video if I need to get back on here if you reply.
reply
my 5 litre f-150 misfires #8. I took it in and they told me it could be burnt valves if new spark plugs don't work. engine light goes on for a week then off for a week. new plugs and 600 later still have engine light. going to buy a new wire with ends and replace that myself. see what happens. great video, thanks. don't know how to get back to this video if I need to get back on here if you reply.
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Fred
One more comment from reading other comments. Mechanics need to be licensed to work on cars, and those licenses should demand passing a good course in automotive electronics. The course should include both theory AND practise. They should get a good feel for what ohms volts and amps really mean, and they should definitely be forced to learn how to use modern and old test equipment.
reply
One more comment from reading other comments. Mechanics need to be licensed to work on cars, and those licenses should demand passing a good course in automotive electronics. The course should include both theory AND practise. They should get a good feel for what ohms volts and amps really mean, and they should definitely be forced to learn how to use modern and old test equipment.
reply
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