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Suggest replacing the sensor ASAP Posted by Bill Homer [Email] ![]() ![]() In Reply to: 4 flashes. coolant temp sensor, SMP, Mon, 18 Feb 2013 16:21:40 Members do not see ads below this line. - Help Keep This Site Online - Signup |
I had a coolant temp sensor issue last spring and tried the same thing, i.e. cleaning the contacts. It was an intermittent problem and eventually got worse, causing the ECU to reset itself to "cold start" mode even when warmed up - but I couldn't find it by probing with an Ohmmeter. See the linked post from Ken Fisher.
The original Bosch sensor in my car had a blue connector (they come in different "flavors" with different colored connectors). I replaced mine with Carquest part #ECC 71-2518, cost about $18, has been running fine since.
posted by 108.71.134...
http://saabnet.com/tsn/bb/9000/index.html?bID=302309
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