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Jim Grant Tech Tips Jim Grant Tech Tips
A collection of helpful articles based on reader submissions
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  Jim Grant's Tech TipsJim Grant's Tech Tips
Below is a collection of Jim Grant's Tech Tips sorted by Vehicle Make. These Tech Tips were answers to questions submitted to Jim by ALLDATAdiy.com users over the course of many years.
If you have any questions, please feel free to email us.
 
 

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  Jim Grant's Tech Tips

95 Chevy Lumina, Coolant Temperature
Q: What is the operating temperature for my car? I have a '95 Chevy Lumina Ls 3.1L engine with 70k miles. At cruising speeds it runs at 195 to 200, and at stop lights it runs between 200-230. Is that too hot? .....Tim

A: The operating coolant temperature of your vehicle's engine is right were it should be for highway driving. As for the temperature at a stop light? It's right in line too! Your vehicle is equipped with electric cooling fans. On may vehicles the cooling fans do not activate until the coolant temperature reaches 220 to 230 degrees. A cooling system operating under the correct pressure, with the proper mix of anti-freeze and water, will not boil to well over 250o. To run clean and efficiently today's engines need to operate at these temperature levels. Just another reason why proper cooling system maintenance is so important in today's vehicles.

 
     
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