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OK, I overheated again last night.

No coolant leaks (I had PLENTY. It all shot out of the rad cap, lol.... and flooded the parking lot. It spewed almost 2 gallons.)

The car does NOT leak! It also does NOT burn coolant, and does NOT show any signs of milkshake in the oil.

The rad fan engages like it is supposed to.
I removed my thermostat a few weeks ago because I was pretty sure it might be causing the problem and it's been hot, so keeping the engine cool has been kind of a priority.

I just did a radiator flush, and it makes me mad all of the expensive coolant I just put in all came out! I put special anti-rust additive in it and even used a 60water/40coolant mix to keep temps down (because water is a better conductor of heat than coolant) and yet for some reason it's STILL overheating.

Now, I have a J-mod, and no tranny cooler. I have one in my garage, but haven't installed it. But anyhow, I have noticed that my tranny stays HOT a LONGGGG time. I once left my car sitting for an hour and a half to let it cool off so I could change my O2s, and my cats and the engine were cool but the tranny was still freakin hot. Is it possible that my lack of a tranny cooler is causing my overheating problem?

I mean, I can't figure it out.

Any hints??
 

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Fry Rice Specialist
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i think jmod actually help lower tranny temp. the reason why the tranny is still hotter than other because oil dissipate heat slower than water.

check for upside down/defective thermostat and maybe a new radiator cap?

is the cooling system properly bleed off of excess airafter the flush?

maybe the rust inhibator is the cause?
 

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I've been told the cooling system needs the restriction of the thermostat in place to slow it down enough to cool off in the radiator. tbirdtess I beleive has a plate with a hole drilled in it to keep the circulation rate down. ( he runs circle tracks)
 

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"When" is it overheating? While driving down the road, when you stop and idle, or all the time?

Those answers will influence the answers to the possible causes. :thumbsup:

On a side note, it could always be a bad gauge/sending unit unless you are getting other symptoms of an overheating engine. (i.e. Don’t always trust what your gauges are telling you)

Just my .02. :thumbsup:
 

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On a side note, it could always be a bad gauge/sending unit unless you are getting other symptoms of an overheating engine. (i.e. Don’t always trust what your gauges are telling you)

Just my .02. :thumbsup:
Coolant is coming out of the radiator cap and spewing all over the ground. The car is overheating, its not a gauge.

- Mark
 

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1st things 1st put a Thermostat back in the car. Then make sure you have a good Rad cap. If the cap doesn't hold pressure the coolant will boil sooner than if it was under pressure.
 

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Fry Rice Specialist
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just reread and you need to put the thermostat back in.
 

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+1

like these guys said, put a new Tstat in, and replace the reservoir cap with a new good reservoir cap....dont just look at your old one and say "well this one looks good".....simply get another one to eliminate a possible cause....only then will you know for sure that it is not the Tstat nor the cap, which are the two cheapest things to replace
 

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I have another theory..perhaps the driver of said vehicle is just too smoking hot, or the women he travels with are smoking as well. All that extra heat is dissipating into yo engine block yo.
 

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Fry Rice Specialist
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I have another theory..perhaps the driver of said vehicle is just too smoking hot, or the women he travels with are smoking as well. All that extra heat is dissipating into yo engine block yo.
lol, bed time over, wake up...
 

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Replace the cap and Tstat then report back.I think the cap is the problem.
 
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