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I have had to jump start

Tiny
SHARYN LOWRY
  • MEMBER
  • 1992 ACURA INTEGRA
  • 4 CYL
  • FWD
  • MANUAL
  • 125,000 MILES
Twice in the last week, I have had to have my 92 Acura Integra jump started. My battery is less than two months old. This seems to occur when I've been out and made several stops. Once I get home and park the car, a fan runs under the hood for a prolonged time, usually about an hour. The next morning, the car won't start.
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Monday, December 20th, 2010 AT 6:00 PM

1 Reply

Tiny
SQM
  • MECHANIC
  • 6,383 POSTS
Hello,

It sounds like a faulty coolant temperature sensor. As the sensor is likely sending signal tot eh ECM that the engine is 'too hot' and the fan runs to cool it down.

The coolant temperature sensor works by increasing / decreasing resistance with the engine temperature. It can fault and have excess resistance, which will signal that the engine is too hot.

Here are some helpful articles:

https://www.2carpros.com/articles/how-a-coolant-temperature-sensor-works
https://www.2carpros.com/articles/symptoms-of-a-bad-coolant-temperature-sensor
https://www.2carpros.com/articles/coolant-temperature-sensor-cts-replacement

I have attached diagrams for your reference.

Please let me know if you have any questions.
Thank you.
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Friday, October 15th, 2021 AT 10:10 PM

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