1995 Acura Integra Still Overheating!

Tiny
BLKROSE
  • MEMBER
  • 1995 ACURA INTEGRA
Electrical problem
1995 Acura Integra

A 95 acura intergra with over 160,000 miles. The radiator has been changed numerous of times and within the last two years the water pump, fans, timing belt. Things were running fine until the last couple of weeks where the car started overheating again. The thermostat was removed and a couple of days after this I had to get a new battery which I bought and replaced myself last night.

Now today when sitting in idle the car starts to heat up the gauge slowly moves all the way to the last line so I check the cooling fan which did not turn on. I turned off the car and turned the key in the ignition without starting the car then the cooling fan turns on, I started the car again and the cooling fan does not turn on, I turned on the air condition and then both fans came on.

What can be the problem and at this point is it worth fixing? If so will it be expensive?

Thank you so much for your advice its greatly appreciated!
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Thursday, October 8th, 2009 AT 2:10 PM

5 Replies

Tiny
SERVICE WRITER
  • EXPERT
Sounds like there are a few problems.
Radiator problem sounds like a bad head gasket that is over pressuring the cooling system.

T-stat needs to go back in.

Cooling fan is intermittant. Need to test when it happening.

Head gasket job is opn the pricy side if that answers the financial question.
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Thursday, October 8th, 2009 AT 2:36 PM
Tiny
VTEC MANIAC
  • MEMBER
Could it b the thermo switch?
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Friday, October 16th, 2009 AT 8:41 PM
Tiny
SERVICE WRITER
  • EXPERT
Regarding the overheating, yes it can be as it sends a signal to the computer to turn on the fans when it hits a certain temperature...(203 F area). When grounded the relays turn on the fan. The ignition switch will ground it when in the "on" position explaining why they turn on when youturn off the car and restart it. The pcm sees that it is way too hot because of this ground and gives the signal to turn on.

The ECT Switch is supposed to do this when the car is running and the Ignition switch is in the run position.

Now this can be tested by removing the switch and heating up coolant in a pan to a specified temp of 196F to 203F, dipping the sensor in it and then checking for continuity between the A and B terminals.

I read that the rad had been replaced multiple times and jumped to the above conclusion. I read into that wrong. However, It still should not be replaced often. I would think no more than twice. There may be an electrolysis problem going on. You should check the coolant for this as the internal aluminum components may be getting compromised. This link is a good read for such a problem:
http://www.2carpros.com/makes/acura/integra
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Saturday, October 17th, 2009 AT 5:51 AM
Tiny
KHLOW2008
  • EXPERT
Hi vtec maniac,

Are you having trying to help to answer the question or have the same symptoms and what have you done so far?

Service Writer could have mistaken you for the original poster for this question and problem might be different.

In order to get the correct diagnosis, please provide whatever information that you think might be useful.
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Saturday, October 17th, 2009 AT 8:20 PM
Tiny
SERVICE WRITER
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I sure did! Thanks K!
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Saturday, October 17th, 2009 AT 9:04 PM

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