Still long cold start w/ inductive heating
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Senior User
Joined: Feb 2004
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From: NW Illinois
Still long cold start w/ inductive heating
Let me know what you guys think. I have had issues withn the truck. New turbo. New PCM. New glow plug control module. All have incurred slow cold starting. If I have the truck plugged in it will fire right off. If it is warmed up it will fire right off. Only the initial cold start is the problem. even if it is 60 deg out like it was today. About a 4 sec crank time. The dealership has done an oil pressure check over night and the pressure all held. Supposedly after the new PCM it has the latest flash version 47.8 if that sounds right. I did double check and he says it is the inductive heating flash. Still long crank.
Is it the nature of this beast just to be a long crank on a cold start. I know many of our old International tractors being very cold blooded but I woud think this truck would be better. I love the truck and will be content if that is it's way. But it doesn't seem right and I am sick of bugging the dealership to get no results. They seem to be trying and getting the same result. runs great otherwise.....Any ideas????
Thanks.
Is it the nature of this beast just to be a long crank on a cold start. I know many of our old International tractors being very cold blooded but I woud think this truck would be better. I love the truck and will be content if that is it's way. But it doesn't seem right and I am sick of bugging the dealership to get no results. They seem to be trying and getting the same result. runs great otherwise.....Any ideas????
Thanks.
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So your issue is long cranks, not rough running after starting, correct? The inductive heating flash is for rough running.
My issue with long cranks was when the engine was hot, not cold. Always started when cold.
I would do what I did, changed my oil, and cleaned/replaced the EGR. At the very least, take out the EGR and see what it look like.
My issue with long cranks was when the engine was hot, not cold. Always started when cold.
I would do what I did, changed my oil, and cleaned/replaced the EGR. At the very least, take out the EGR and see what it look like.
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From: NW Illinois
The truck runs fine after it starts. Yes it is just long crank time when 1rst starting. I thought the inductive flash was for hard cold start and that if there was rough running that was supposed to be fixed prior to inductive flash.....The oil has been changed and the problem didn't change. Would disconnecting the EGR show me anything in terms of the start time?
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Flash doesent help with the cranking time. It helps just after the fuel begins to be injected. No more rough running after the engine is started. Things are going on while you are cranking, 500 psi in HPOP is required befor the fuel is injected, ect... What is a long crank to you, my truck can sometimes be 2 seconds.
Laughing Gas
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just a stab in the dark but were the actual glow plugs replaced?? if u dont feel like taking it to the dealer or it is out of warranty then u can check em urself with a voltmeter...think of em like a strand of x-mas lights like the old sets if one bulb goes out none work...
Fleet Mechanic
Joined: Nov 2004
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From: Templeton, Massachussetts
none of those things have anything to do w/ it. 4 second crank is normal-
I would only look for a HPO leak or faulty pump. there have been some w/ the oil draining from the HPOP res- due to a small crack in the block-but only on '06+ that I am aware of. We had a brand new 06 w/ bad HPOP for this same concern-it will not bring up pressure for 6-10 seconds of cranking-intermittently- your dealer shoule be able to pinpoin the cause of concern if there is one but like I stated before 4 seconds is normal for a 6.0L. good luck,.
I would only look for a HPO leak or faulty pump. there have been some w/ the oil draining from the HPOP res- due to a small crack in the block-but only on '06+ that I am aware of. We had a brand new 06 w/ bad HPOP for this same concern-it will not bring up pressure for 6-10 seconds of cranking-intermittently- your dealer shoule be able to pinpoin the cause of concern if there is one but like I stated before 4 seconds is normal for a 6.0L. good luck,.
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From: NW Illinois
Originally Posted by WishIhada7.3
just a stab in the dark but were the actual glow plugs replaced?? if u dont feel like taking it to the dealer or it is out of warranty then u can check em urself with a voltmeter...think of em like a strand of x-mas lights like the old sets if one bulb goes out none work...
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From: NW Illinois
Originally Posted by cudajim
Flash doesent help with the cranking time. It helps just after the fuel begins to be injected. No more rough running after the engine is started. Things are going on while you are cranking, 500 psi in HPOP is required befor the fuel is injected, ect... What is a long crank to you, my truck can sometimes be 2 seconds.
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From: NW Illinois
Originally Posted by 18vtx00
none of those things have anything to do w/ it. 4 second crank is normal-
I would only look for a HPO leak or faulty pump. there have been some w/ the oil draining from the HPOP res- due to a small crack in the block-but only on '06+ that I am aware of. We had a brand new 06 w/ bad HPOP for this same concern-it will not bring up pressure for 6-10 seconds of cranking-intermittently- your dealer shoule be able to pinpoin the cause of concern if there is one but like I stated before 4 seconds is normal for a 6.0L. good luck,.
I would only look for a HPO leak or faulty pump. there have been some w/ the oil draining from the HPOP res- due to a small crack in the block-but only on '06+ that I am aware of. We had a brand new 06 w/ bad HPOP for this same concern-it will not bring up pressure for 6-10 seconds of cranking-intermittently- your dealer shoule be able to pinpoin the cause of concern if there is one but like I stated before 4 seconds is normal for a 6.0L. good luck,.
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From: Templeton, Massachussetts
Originally Posted by Bushwhacker
The oil did hold pressure and the dealership is telling me this time is normal too. Just didn't seem right to me.
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Originally Posted by Bushwhacker
The crank time is usually about 4-5 seconds.
Or are you counting 1, 2, 3, 4
Wow, that is long. I cant beleive that is normal. Something must be wrong.
Wait, you said when its cold, correct, I guess it may be OK.
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From: NW Illinois
Originally Posted by cudajim
Is it teally 4 seconds, 1, one thousnad, 2, one thousand......
Or are you counting 1, 2, 3, 4
Wow, that is long. I cant beleive that is normal. Something must be wrong.
Wait, you said when its cold, correct, I guess it may be OK.
Or are you counting 1, 2, 3, 4
Wow, that is long. I cant beleive that is normal. Something must be wrong.
Wait, you said when its cold, correct, I guess it may be OK.
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The following is from an International Service Bulletin which may help explain why 6.0s don't cold start as readily as the 7.3s did;
"DESCRIPTION
In order to meet the 2004 EPA emission regulations many changes to all makes of diesel engines had to be made. These changes were various and included EGR valves, combustion chamber changes as well as others. As a result of these changes the engines do not start as well in cold weather. These characteristics are common with all diesel engines and require manufacturers to approach cold engine starting differently than in the past."
"DESCRIPTION
In order to meet the 2004 EPA emission regulations many changes to all makes of diesel engines had to be made. These changes were various and included EGR valves, combustion chamber changes as well as others. As a result of these changes the engines do not start as well in cold weather. These characteristics are common with all diesel engines and require manufacturers to approach cold engine starting differently than in the past."