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Old 12-13-2009, 08:47 AM
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problems

well my o4 f350 drw lariat truck has started to give me greif, i just recently changed the heater core and thermo truck was blowing cold at idle fixed problem for a day or so.

now my truck has started to blow cold again but i am also losing power and truck runs really rough i do have a weak injector according to the scanner that was about 2 weeks ago when i had the ficm updated but it also will puke a little bit out the degass bottle oil is clean and so is the coolant but i am loosing alot of coolant were is it going? truck has 300000 km on her runs hard everyday hotshot truck. how do i know if its start of a head gasket? scanner does not show any other codes just loss of power and coolant missing blows a little bit of blue in morning oh and im getting a strange noise by the fan sounds like a bad bearing or some thing when she is running any help would be greatfull. truck has 4inch turbo back,egr delete, high idle mod, aem intake and hypertech stage 2 thanks sorry for the long post!
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Old 12-13-2009, 09:01 AM
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Quote:
Originally Posted by biggish View Post
well my o4 f350 drw lariat truck has started to give me greif, i just recently changed the heater core and thermo truck was blowing cold at idle fixed problem for a day or so.

now my truck has started to blow cold again but i am also losing power and truck runs really rough i do have a weak injector according to the scanner that was about 2 weeks ago when i had the ficm updated but it also will puke a little bit out the degass bottle oil is clean and so is the coolant but i am loosing alot of coolant were is it going? truck has 300000 km on her runs hard everyday hotshot truck. how do i know if its start of a head gasket? scanner does not show any other codes just loss of power and coolant missing blows a little bit of blue in morning oh and im getting a strange noise by the fan sounds like a bad bearing or some thing when she is running any help would be greatfull. truck has 4inch turbo back,egr delete, high idle mod, aem intake and hypertech stage 2 thanks sorry for the long post!
The EGR cooler is cracked and that is why you're puking coolant. Need to get it checked, but I would say that the EGR and oil coolers will need replaced and possibly the head gaskets. You would be better off to have ARP head studs installed and block or delete the EGR system completely.
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Old 12-13-2009, 09:04 AM
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What temperature reading is your gauges showing. There is a small line connected to a hose that runs to the heater core, there is a valve near the firewall on the passenger side be shure the little vacume line is plugged in. This controls water thru the heater core. The noise could be the fan clutch, improper operation can cause overheat and loss of coolant.
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Old 12-13-2009, 09:12 AM
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thanks guys sorry the egr system is completly gone! temp reads normal all the time never overheated and i will check vac line im sure its plugged in heater core hoses stay hot but still losing coolant from where dunno it almost seems it will pressure up the slowly lose pressure somewhere should i consider headgaskets before it get worse i have done the new cap for degass still pukes a lttle
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Old 12-13-2009, 09:25 AM
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Originally Posted by biggish View Post
thanks guys sorry the egr system is completly gone! temp reads normal all the time never overheated and i will check vac line im sure its plugged in heater core hoses stay hot but still losing coolant from where dunno it almost seems it will pressure up the slowly lose pressure somewhere should i consider headgaskets before it get worse i have done the new cap for degass still pukes a lttle
You deleted the whole EGR system or blocked it? If it is completely deleted, I would start leaning toward the head gaskets. I blew 6 out of 8 on my head gaskets and it never ran hot. It was always in the normal operating temp. range.
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Old 12-13-2009, 09:33 AM
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yes the egr is blocked sorry new to this did you have any other signs of headgaskets? is there any way to tell with out ripping it apart or mabey just do it! are there tests i can try first
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Old 12-13-2009, 09:39 AM
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yes the egr is blocked sorry new to this did you have any other signs of headgaskets? is there any way to tell with out ripping it apart or mabey just do it! are there tests i can try first
If it is just blocked then I would still check the EGR cooler for the problem. Even though the EGR is blocked it is still possible to have a cooler failure due to heat. I don't know how to test whether it is the cooler or the head gaskets but a dealership with a good diesel tech could determine it for you. If it ends up being the cooler, don't install a new one. You can do the full delete for the same price or cheaper than a factory EGR cooler.
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Old 12-13-2009, 09:54 AM
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ok thanks for your help guess i got some work ahead of me !!!
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Old 12-13-2009, 09:57 AM
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ok thanks for your help guess i got some work ahead of me !!!
No problem. Good luck with the repairs.
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