Rough Runnning At Start-Up ?
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Rough Runnning At Start-Up ?
Our 2006 6.0L diesel has developed a problem of really rough running at start-up and being powerless until it warms up good. After 5-10 minutes the engine smooths out, it then runs perfectly with full power. If anyone here has had that problem and knows the cure, we sure would appreciate your advice. Thanks a bunch, Jim
Senior User
Joined: Nov 2010
Posts: 419
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From: Iowa
It is either the FICM (Fuel injection control module) or a sticking injector(injector stiction). You can check the FICM voltage yourself if you have a voltmeter.
Sometimes you can get rid of a sticking injector using a product like REV X or Hot Shot Secret, otherwise you will need to replace it/them to fix it.
Sometimes you can get rid of a sticking injector using a product like REV X or Hot Shot Secret, otherwise you will need to replace it/them to fix it.
New User
Joined: Apr 2012
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Our 2006 6.0L diesel has developed a problem of really rough running at start-up and being powerless until it warms up good. After 5-10 minutes the engine smooths out, it then runs perfectly with full power. If anyone here has had that problem and knows the cure, we sure would appreciate your advice. Thanks a bunch, Jim
Token Redneck
Joined: Jun 2007
Posts: 9,339
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From: Breckenridge, TX
Any codes at all?
https://www.ford-trucks.com/forums/8...procedure.html
Run through the FICM test procedure (or use an OBDII gauge set up like this: ScanGauge II ) and figure out what the voltage is doing
https://www.ford-trucks.com/forums/8...procedure.html
Run through the FICM test procedure (or use an OBDII gauge set up like this: ScanGauge II ) and figure out what the voltage is doing
Lead Driver
Joined: Feb 2011
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From: L.A. (Lower Alabama)
Drive it until it breaks, then sell? Nice plan
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Joined: Apr 2012
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This worked for me
Check this.
Credit for the first two paragraphs belongs to Josh Boggin (River City Diesel):
The main reason why the 6.0 is so picky about oil is because it is totally reliant on two electromagnets to shuttle the spool and control the oil to the injectors. The 7.3`s use a electromagnet also but a spring to return the poppet to the closed position. Obviously the spring will work much better to "cut" through the thick oil and close the oil flow.
Not only will running oil with too thick of a viscosity cause rough starts. But this also will interrupt the shuttle action of the spool causing injection timing to be retarded causing poor performance and decreased mileage until the oil is up to full operating temperature.
I "stole" it from another site. I thought it was worth sharing.
I also wanted to consolidate some info from another post for all those "future" members using the search function:
Common Symptoms of failing injector(s):
Typically when one injector fails, the engine is hard to start and is low on power. If two injectors fail starting will be very hard or the engine will not start at all. If you do manage to start the engine, it will be very low on power.
I did a oil change and switched to a synthetic oil and it stopped my truck would run rough for up to 30 min.
A lot of guys are using the Rev x stuff and have good luck. I ordered some yesterday to add to my synthetic can not hurt at this point.
My thoughts are a sticky injector if i can mask it for awhile and keep truck running good until it starts agian and i save the money i will consider it a win.
About | REV-X Products, Inc. Truck&B=Diesel
Good luck and please post results the oil thing worked for me but who knows.
Credit for the first two paragraphs belongs to Josh Boggin (River City Diesel):
The main reason why the 6.0 is so picky about oil is because it is totally reliant on two electromagnets to shuttle the spool and control the oil to the injectors. The 7.3`s use a electromagnet also but a spring to return the poppet to the closed position. Obviously the spring will work much better to "cut" through the thick oil and close the oil flow.
Not only will running oil with too thick of a viscosity cause rough starts. But this also will interrupt the shuttle action of the spool causing injection timing to be retarded causing poor performance and decreased mileage until the oil is up to full operating temperature.
I "stole" it from another site. I thought it was worth sharing.
I also wanted to consolidate some info from another post for all those "future" members using the search function:
Common Symptoms of failing injector(s):
Hard Starting (especially w/ cold engine)
Excessive Smoke (white or bluish white)
Rough Running
Low Power
Stalling
Misfire
Buck / Jerk
Excessive Smoke (white or bluish white)
Rough Running
Low Power
Stalling
Misfire
Buck / Jerk
Typically when one injector fails, the engine is hard to start and is low on power. If two injectors fail starting will be very hard or the engine will not start at all. If you do manage to start the engine, it will be very low on power.
I did a oil change and switched to a synthetic oil and it stopped my truck would run rough for up to 30 min.
A lot of guys are using the Rev x stuff and have good luck. I ordered some yesterday to add to my synthetic can not hurt at this point.
My thoughts are a sticky injector if i can mask it for awhile and keep truck running good until it starts agian and i save the money i will consider it a win.
About | REV-X Products, Inc. Truck&B=Diesel
Good luck and please post results the oil thing worked for me but who knows.
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Joined: Mar 2012
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I'm taking my 03 6.0 in tonight so that they can see how hard mine is to start. It was 50degrees and it took three tried to start it before it would stay running. Even then it has zero power and shifts like it has a shift kit in it.
I'll be interested in seeing what you find out.
They will be also looked at the alt and why I have to lock the hubs to use 4wd. I've dated bipolar women less temperamental then this truck.
I'll be interested in seeing what you find out.
They will be also looked at the alt and why I have to lock the hubs to use 4wd. I've dated bipolar women less temperamental then this truck.
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That's the spirit. First adversity that comes along, just surrender. You're not French, are ya?
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Our 2006 6.0L diesel has developed a problem of really rough running at start-up and being powerless until it warms up good. After 5-10 minutes the engine smooths out, it then runs perfectly with full power. If anyone here has had that problem and knows the cure, we sure would appreciate your advice. Thanks a bunch, Jim
Ford 6.0 Powerstroke Diesel FICM Removal and Diagnosis Instructional Video - YouTube
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Wow, Thanks A Bunch For All The Helpful Replies
Howdy All,
Holy Moly, what a great bunch of Ford Power Stroke guys ya'll are and thanks for all the great replies. Now I'm going to have to sift through a bunch of good info you have given me to get the problem fixed. Hopefully, I can finally get issues fixed with this 6.0. When under warranty, I can't remember the times I had it in to the Ford dealer, reminding me of the old saying I used to hear on the farm in the 60's down in Texas for Fords = Fix Or Repair Daily. Fords have always been good trucks for me until this 6.0. I love the King Ranch crew cab dually, but this engine has been a headache. Since I'm a never give up die-hard, I keep hoping one more fix and it will be good all the time instead of most of the time. Now that warranty time has expired half way through the mileage warranty, it will be all on my nickels.
Thanks again with all your input, hopefully it won't be a bank breaking bunch of nickels. Per your requests, I will post our solution results. You are appreciated with much gratitude. Thanks a bunch...Jim
Holy Moly, what a great bunch of Ford Power Stroke guys ya'll are and thanks for all the great replies. Now I'm going to have to sift through a bunch of good info you have given me to get the problem fixed. Hopefully, I can finally get issues fixed with this 6.0. When under warranty, I can't remember the times I had it in to the Ford dealer, reminding me of the old saying I used to hear on the farm in the 60's down in Texas for Fords = Fix Or Repair Daily. Fords have always been good trucks for me until this 6.0. I love the King Ranch crew cab dually, but this engine has been a headache. Since I'm a never give up die-hard, I keep hoping one more fix and it will be good all the time instead of most of the time. Now that warranty time has expired half way through the mileage warranty, it will be all on my nickels.
Thanks again with all your input, hopefully it won't be a bank breaking bunch of nickels. Per your requests, I will post our solution results. You are appreciated with much gratitude. Thanks a bunch...Jim
Hotshot
Joined: Apr 2010
Posts: 19,073
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From: Saratoga Springs,UT
if you dont have any gauges get some
Even a SGII is a great unit for cheap will monitor all you need except Fuel Press.
this 6.0L is better to watch with gauges and catch things before 1 thing leads to another
there is 1 or 2 other things that will cause your condition but looks like the Guys Hit the main ones so check them first
Even a SGII is a great unit for cheap will monitor all you need except Fuel Press.
this 6.0L is better to watch with gauges and catch things before 1 thing leads to another
there is 1 or 2 other things that will cause your condition but looks like the Guys Hit the main ones so check them first
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Mountain Pass
Joined: Nov 2011
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From: Rudy, AR
I'm taking my 03 6.0 in tonight so that they can see how hard mine is to start. It was 50degrees and it took three tried to start it before it would stay running. Even then it has zero power and shifts like it has a shift kit in it.
I'll be interested in seeing what you find out.
They will be also looked at the alt and why I have to lock the hubs to use 4wd. I've dated bipolar women less temperamental then this truck.
I'll be interested in seeing what you find out.
They will be also looked at the alt and why I have to lock the hubs to use 4wd. I've dated bipolar women less temperamental then this truck.