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TOPIC: Overheating issue...alot of research and no answer

Overheating issue...alot of research and no answer 2 years 3 months ago #17989

  • drktrrs
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2010 cummins
H&S BM
straight 5" exhaust
H&S egr/cooler delete

I did alot of searching and reading about the issue i've got and found ALOT of guys having the exact same problem. I've yet to read about an exact cause and/or solution though. A few weeks ago it started to over heat. It would go from 205 to 245 gradually then it would rapidly cool to 180 or so. I read that it could be the thermostat. I changed both thermostat and radiator. It acted normal for a few days then started doing the same thing. I read that it could be air in the system. I purged and vented the system. Acted normal for a few days then same thing. My over flow tank does fill up and bubbles on shut down. I read to take the thermostat out. I did that and well.....same result. I read about alot of guys changing head gasket and studs then shortly down the road it doing the same thing. I also read about drive pressure possibly being a cause and running an external wastegate but I havent read any testimonial to that. I'm sure some of you guys have either had this problem or have read about it. I'm just frustrated that I can read about hundreds of possible causes but no real answers. Any help on this would be greatly appreciated.
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Re: Overheating issue...alot of research and no answer 2 years 3 months ago #17996

  • blackout
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am in the same boat with my daily driver i changed the head gasket and it still does it. it pressures up the coolant system alot and as soon as you open the rad cap and let the pressure out its back to normal
2011.5 dodge 2500,15" kelderman lift,42" tires,22" rims, fab 4 bumper, road armour bumper rear,projector head lights, led tail lights, h&s mini maxx, zz fab intake custom boost tubes,afe intercooler,5 inch flo pro,thoughbred ss manifold,h&s fuel shim,twin cp3's,300hp injectors,aurora 5000-8000...
Last Edit: 2 years 3 months ago by blackout.
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Re: Overheating issue...alot of research and no answer 2 years 3 months ago #17997

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YEP....YOU ARE RIGHT head gasket if it is charging the cooling system...and your overflow is bubbling as you state....you must have arp head studs and a new gasket and be sure the new gasket is the same thickness as what you remove. ( If you want to varify what im saying ge a Hydro emission checker P03/06f cummins part #3822985 combustion leak test tool.instantly you will know if combustion is the problem ...hope this helps.

(H&S MCC) 2008 3500 4X4 Dually 6.7 Cummins,Suncoast performance 68rfe transmission & converter + Flywheel, Industrial injection 85% over cp3,Race Injectors, Exhaust manifold and Fatshaft turbo Polished, ARP 625s,H&S Delete engine and exhaust,rail plug, Airdog II adj, H&S Black Maxx TV>34, S&B cold air intake, Banks innercooler...and i've qualified for the 2012 NHRDA world finals in sportsman ...This is also my daily work truck..super dependable with the H&S i also tow a 20,000 lb trailer.
To see 2008 Dodge Mega 4x4

(H&S MCC) 2008 3500 4X4 Dually 6.7 Cummins,Suncoast performance 68rfe transmission & converter Flywheel, Industrial injection 85% over cp3s X2, Race Injectors, Exhaust manifold and Fatshaft turbo X2 Polished, ARP 625s,H&S...
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Re: Overheating issue...alot of research and no answer 2 years 3 months ago #17998

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YEP....YOU ARE RIGHT head gasket if it is charging the cooling system...and your overflow is bubbling as you state....you must have arp head studs and a new gasket and be sure the new gasket is the same thickness as what you remove. ( If you want to varify what im saying ge a Hydro emission checker P03/06f cummins part #3822985 combustion leak test tool.instantly you will know if combustion is the problem ...hope this helps.

(H&S MCC) 2008 3500 4X4 Dually 6.7 Cummins,Suncoast performance 68rfe transmission & converter + Flywheel, Industrial injection 85% over cp3,Race Injectors, Exhaust manifold and Fatshaft turbo Polished, ARP 625s,H&S Delete engine and exhaust,rail plug, Airdog II adj, H&S Black Maxx TV>34, S&B cold air intake, Banks innercooler...and i've qualified for the 2012 NHRDA world finals in sportsman ...This is also my daily work truck..super dependable with the H&S i also tow a 20,000 lb trailer.
To see 2008 Dodge Mega 4x4

(H&S MCC) 2008 3500 4X4 Dually 6.7 Cummins,Suncoast performance 68rfe transmission & converter Flywheel, Industrial injection 85% over cp3s X2, Race Injectors, Exhaust manifold and Fatshaft turbo X2 Polished, ARP 625s,H&S...
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Re: Overheating issue...alot of research and no answer 2 years 3 months ago #18004

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blackout wrote:
am in the same boat with my daily driver i changed the head gasket and it still does it. it pressures up the coolant system alot and as soon as you open the rad cap and let the pressure out its back to normal

So is that what you just have to do from now on then is open the rad cap and let the pressure out? I'm going to change the head gasket and get studs but it sounds like with your case and all the other cases that I'm just looking at having no change in the issue. I've let the pressure out of the cap many times but it just sends alot of bubbles into the over flow and never sucks it back into the rad. Therefore, i've been adding coolant almost after everytime I drive it.
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Re: Overheating issue...alot of research and no answer 2 years 2 months ago #18010

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Your head gasket is blown, the pressurized coolant system locks the thermostat down. Need to get a set of head studs coming to prevent the issue. For a temporary fix, drill two small holes in the thermostat. Order a 2003-2007 5.9L 190 deg thermostat to replace it when you replace your HG. Also be sure to have the head surfaced when you replace the HG. Sucks, but it is fix needed.
Current truck: 2012 Dodge 2500 Mega Laramie 6.7L w/68RFE, Mini Maxx, Maxx Flow & Boost tube, EGR cooler delete, 5" exhaust straight piped, CAI, 8" BDS Long arm lift, 37" Toyo MT's, 22" Rockstars, Retro Solutions 8000k HIDs

Old truck: 2007 Dodge 2500 Laramie 5.9L Bullseye S480 Batmowheel and cover...
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