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Jefferson Moreira

Engine overheated

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A few months ago maintenance was done on the engine of my Journey 2.7 and again I had an engine problem that overheated and damaged. It was heating only when in high rotation on the road, inside the city nothing happened. They could help me figure out the problem, the water pump had already been replaced.

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Moved to the correct section. You state "They could help me figure out the problem", did they? 

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This just seems like a statement of a recent event...unless I am missing the question somewhere in there(???).

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Check your radiator has good flow and also check the thermostat isn't sticking. Any radiator that's even partially blocked can kill engines. Could explain why your cooling fan has no issue controlling the system temperature in the city but fails on the open road as higher revs = more heat, failure to expel heat = overheat. Also check your coolant is rich enough and not had water added too many times.

 

Rossco

Edited by rossco

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On 19/08/2018 at 7:55 AM, rossco said:

Check your radiator has good flow and also check the thermostat isn't sticking. Any radiator that's even partially blocked can kill engines. Could explain why your cooling fan has no issue controlling the system temperature in the city but fails on the open road as higher revs = more heat, failure to expel heat = overheat. Also check your coolant is rich enough and not had water added too many times.

 

Rossco

I already tested the radiator. And the cooalant fluid is normal

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57 minutes ago, Jefferson Moreira said:

 

If anyone has the repair maintenance manual, could you send it?

 

 

You can buy them off ebay.. 

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You don't say whether you've had the thermostat changed or not? I mentioned this in my first post. They can get "sticky" and appear to work ok at times. Removing the thermostat to discount it is a regularly used diagnostic method. 

Also the easy way checking rad in and out hose temps can indicate there is no flow due to thermostat being closed. 

 

Rossco

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On 21/08/2018 at 16:07, rossco said:

Você não diz se mudou o termostato ou não? Eu mencionei isso no meu primeiro post. Eles podem ficar "pegajosos" e parecem funcionar bem às vezes. Remover o termostato para descontá-lo é um método de diagnóstico usado regularmente. 

Além disso, a maneira mais fácil de verificar a entrada e saída de mangueira pode indicar que não há fluxo devido ao fechamento do termostato. 

 

Rossco

 

The thermostat has been removed.

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Time to have a professional mechanic diagnose this, probably better than just throwing parts at it.

Hank

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1 hour ago, Hankster said:

Time to have a professional mechanic diagnose this, probably better than just throwing parts at it.

Hank

 

Agree

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Would also help I find you would tell us everything that you have had done already so we can stop wasting time making suggestions you've already tried. 

 

At this point I would be checking the radiator flow again as something's not right. Just because water comes out the bottom does not mean "it's fine".

 

rossco

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