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Over heating. Help!!

For all non stroker / performance related problems and discussion.
bnelson
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Re: Over heating. Help!!

Post by bnelson » December 1st, 2020, 11:57 am

Can't remember exactly all the thermodynamics of it but there could be a chance that your extra big double wide radiator isn't cooling as efficiently as a standard size one. Seems funky but bigger isn't always better........sometimes.

Cummins90
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Re: Over heating. Help!!

Post by Cummins90 » December 6th, 2020, 8:28 am

Its time to install a wideband and trans temp outlet gauge (if auto). This will give you concrete numbers.

If you have an automatic are you getting TCC lock up? I drill a small 1/8 hole in my thermostat at the 12 oclock position. This is to lessen the lag of the thermostat opening when making large amounts of heat quickly. If you drill a hole in yours and you experience a longer duration of time on the highway before over temp I would suspect the thermostat is not allowing full flow into the radiator.

Xtultegra
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Re: Over heating. Help!!

Post by Xtultegra » December 14th, 2020, 7:39 pm

bnelson wrote:
December 1st, 2020, 11:57 am
Can't remember exactly all the thermodynamics of it but there could be a chance that your extra big double wide radiator isn't cooling as efficiently as a standard size one. Seems funky but bigger isn't always better........sometimes.
I get that, but I started with a standard new oem radiator.

Xtultegra
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Re: Over heating. Help!!

Post by Xtultegra » December 14th, 2020, 7:44 pm

Cummins90 wrote:
December 6th, 2020, 8:28 am
Its time to install a wideband and trans temp outlet gauge (if auto). This will give you concrete numbers.

If you have an automatic are you getting TCC lock up? I drill a small 1/8 hole in my thermostat at the 12 oclock position. This is to lessen the lag of the thermostat opening when making large amounts of heat quickly. If you drill a hole in yours and you experience a longer duration of time on the highway before over temp I would suspect the thermostat is not allowing full flow into the radiator.

It's a manual. I too always drill a small hole in my thermostat. I have tried two thermostats. A regular one and a hi-flow. Also removed thermostat completely and it didn't help.

Xtultegra
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Re: Over heating. Help!!

Post by Xtultegra » December 14th, 2020, 7:46 pm

Russ Pottenger wrote:
August 29th, 2020, 12:37 pm
Any updates?
Still haven't figured it out. Is it possible the computer is causing it to run hot because of a bad oxygen center or too much fuel?

Xtultegra
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Re: Over heating. Help!!

Post by Xtultegra » December 14th, 2020, 7:46 pm

Russ Pottenger wrote:
August 29th, 2020, 12:37 pm
Any updates?
Still haven't figured it out. Is it possible the computer is causing it to run hot because of a bad oxygen center or too much fuel?

Xtultegra
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Re: Over heating. Help!!

Post by Xtultegra » December 14th, 2020, 7:47 pm

Bertismyname wrote:
September 20th, 2020, 11:58 am
More than once I have seen the wrong water pump installed. Be sure that it is the correct rotation for your engine. The wrong rotation will cool a little bit. But, at higher loads and engine speeds it quickly over heats.
Have tried two. Hi flow Flowkooler in their now.

Xtultegra
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Re: Over heating. Help!!

Post by Xtultegra » December 14th, 2020, 7:49 pm

bnelson wrote:
November 19th, 2020, 2:25 pm
Sounds silly but have you replaced your radiator hoses? I have seen the inside of a hose tear loose and with normal flow/low RPM they seem to cool fine but with higher RPM and faster water flow the inner lining balloons up and blocks the flow of coolant. Also how old is the radiator? Water scale buildup possibly?
Radiator is new. 2nd one. Tried oem. Now have a thicker double row in there.

Xtultegra
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Re: Over heating. Help!!

Post by Xtultegra » December 14th, 2020, 7:50 pm

Russ Pottenger wrote:
August 29th, 2020, 12:37 pm
Any updates?
What do you think of putting an oil cooler on it?

Cummins90
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Re: Over heating. Help!!

Post by Cummins90 » December 15th, 2020, 6:09 am

A wideband will tell you everything you need to know about your mixture now and in the future. What is your radiator cap rated to? Is it new? You should perform a block test to see if you are getting co2 in the coolant.

Mike B
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Re: Over heating. Help!!

Post by Mike B » December 17th, 2020, 5:56 am

The only time I've gotten overheating issues was when my radiator cap wouldn't hold any pressure in the system. It kept getting hot and spewing coolant through the overflow, which I believe in turn blew my head gasket in my 4.0l.

If you got a new 2 core champion radiator, they should have a new cap for the system, so I think you could check that one off the list. Probably ought to install a wideband like everyone's telling you to, and stop wasting money by throwing that at other parts.

Xtultegra
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Re: Over heating. Help!!

Post by Xtultegra » December 23rd, 2020, 9:12 pm

Cummins90 wrote:
December 15th, 2020, 6:09 am
A wideband will tell you everything you need to know about your mixture now and in the future. What is your radiator cap rated to? Is it new? You should perform a block test to see if you are getting co2 in the coolant.
No C02 in solution. Where can I get a wideband?

Cummins90
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Re: Over heating. Help!!

Post by Cummins90 » December 24th, 2020, 12:34 pm

Ive always used aem widebands and I cant say anything bad about them.

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