Question about 1999 Honda CR-V

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Honda crv 1995 heading

We have done the radiator new top tank flush a new cap an a new thermostatic . We can run it to warm up for half hour its ok temperture normal on half. Then you take it for a drive its normal you could about 6km an then the temperture shoots up to the red then drops back to normal like straight away so i pull over to see if it boiling an stream but nothing its normal. I get hm an its run sweet no streaming or boiling over. But in after its cool down you have to put about half litre of water an the over bottle is normal. So can you help. I real donot what to think of the worse.

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  • gkohler Jun 23, 2008

    My 1999 Honda CR-V automatic is overheating. The gauge will go up to maximum if driven at about 2200 RPM if I switch the heater and fan on the temperature will fall back to normal in about 2 seconds. When the temperature is high - if I rev the engine the temperature will fall again to normal. The thermostat has been changed but no difference. The temperature sensors have also been changed. The radiator fans switch on and off ok. There are no water leaks and the garage has checked and say there are no cases in the water so the head / gasket apear to be ok.

  • gsxrrrr Mar 10, 2009

    my 96 civic engine is overheating the coolant is not circulating through the motor my email is gsxrrrr@gmail.com

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What you need to do is to check where the leak is coming from. If you have to add water after it's run, then i suggest maybe putting a cardboard under the engine after driving to trace if there are any leaks. Also check the coolant/water level when the engine is running at normal operating temperature, both the radiator and the reservior. But please be carefull when you do this due to pressure, specially when checking a radiator in the condition the cooling system is in. And last i would suggest putting distilled water rather than regular tap water. The water from the tap is hard water so it will have the tendency to evaporate a lot more quickly than soft water. Hope you fix it.

Posted on Jun 14, 2008

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Air pocket in coolant system.

====

When the car is completely cool,check the electric fan(s) for smooth rotation.

Clean/check/change the thermo sensor,contact and wire.

===

Excavate air pocket in coolant system / check for head gasket leak

This test will kill two birds with one stone.

===

MAKE SURE THE COOLANT SYSTEM and ENGINE IS COLD!

RAN THIS TEST IN A WELL VENTILATED AREA ONLY!

You will spill some coolant during this air pocket purge test.......BE KIND TO THE ENVIRONMENT and ANIMAL please clean up after the test!

===

Put the front end on a pair of ramp or park your car on a VERY STEEP HILL (radiator facing top of the hill) .

Top of the coolant reserve tank

Let it ran for 10-15 minutes.

Monitor for air pockets escaping from coolant reserve tank.

Small amount of bubbles is OK at 1-5 minute mark

After the thermostat open up (after 195 F warm up) at
5-12 minute mark or after high idle you should see less bubbles.

If you do not see any in rush of bubbles then your thermostat may be partially stuck or rusted badly inside the thermostat hosing.

Give the thermostat host few gentle taps.

If you see larger bubbles surfacing after 15 minutes then should do a hydrocarbon (HC) dye test to test for potential head gasket leak.

Let engine cold down and top off coolant reserve tank.

Start monitor for coolant lost

===

A coolant flush is require every 2 years or 24,000 miles.

I recommend the thermostat that has a relief pop-let to reduce the change of burst radiator and coolant hoses.

Make sure you get a new thermostat gasket,black RTV and fresh coolant for the job.

===
Please post more information by clicking the comment link on the top right corner.

DON'T FORGET to RATE ME if my tip is helpful to you!

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My 2001 cadillac deville is running hot still, i have got a new radiator, thermostat, cap for the water reservoir, and replaced the water reservoir, what could it be? I have done everything possible and...


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Clean/check/change the thermo sensor,contact and wire.

===

Excavate air pocket in coolant system / check for head gasket leak

This test will kill two birds with one stone.

===

MAKE SURE THE COOLANT SYSTEM and ENGINE IS COLD!

RAN THIS TEST IN A WELL VENTILATED AREA ONLY!

You will spill some coolant during this air pocket purge test.......BE KIND TO THE ENVIRONMENT and ANIMAL please clean up after the test!

===

Put the front end on a pair of ramp or park your car on a VERY STEEP HILL (radiator facing top of the hill) .

Top of the coolant reserve tank

Let it ran for 10-15 minutes.

Monitor for air pockets escaping from coolant reserve tank.

Small amount of bubbles is OK at 1-5 minute mark

After the thermostat open up (after 195 F warm up) at
5-12 minute mark or after high idle you should see less bubbles.

If you do not see any in rush of bubbles then your thermostat may be partially stuck or rusted badly inside the thermostat hosing.

Give the thermostat host few gentle taps.

If you see larger bubbles surfacing after 15 minutes then should do a hydrocarbon (HC) dye test to test for potential head gasket leak.

Let engine cold down and top off coolant reserve tank.

Start monitor for coolant lost

===

A coolant flush is require every 2 years or 24,000 miles.

I recommend the thermostat that has a relief pop-let to reduce the change of burst radiator and coolant hoses.

Make sure you get a new thermostat gasket,black RTV and fresh coolant for the job.

===
Please post more information by clicking the comment link on the top right corner.

DON'T FORGET to RATE ME if my tip is helpful to you!

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