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Investigating Running temperature lower than expected 200 1985

posted by  ricbelley on  Thu Dec 26 21:25 CST 2024
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last visit: Sat Jan 18 12:32 CST 2014
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Hello Art,

Good to read a message from you. I was hoping I could get your most valuable attention once more.
Thank you so much for your reply.
On the Temp gauge sender:
I did not realize it was receiving a 10 Volt reference voltage from the cluster. I will check to make sure it is getting this signal as well.

About the coolant temp sensor for the fuel system: Is there a reference voltage sent by the ECM? Is it 5 Volts when not connected to the sensor? The manual does not seem to elaborate much on this sensor besides giving a full Temp vs resistance curve.

I hope you can enjoy Christmas / New year week.

Note: This 85 245 Volvo is still up and running. Love this car. Manual transmission. Verrry useful and the least of my troubles compared to other cars I own. I heard those redblock engines almost never fail. Masterpiece of drivability, longevity, simplicity and usefulness. I don't really care about modern cars. If I can find another 240 with good body I will probably buy.

Richard





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New Investigating Running temperature lower than expected [200][1985]
posted by  ricbelley  on Fri Dec 13 14:33 CST 2024 >


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