hunkefunk Posted December 9, 2015 Share Posted December 9, 2015 My 89 Turbo Wagon and I've been experiencing some jumpy idle at start, and then the check engine light has come on. The light dissappears after the car is shut off. I checked and it's a Code 21. So I bought a coolant temp sensor and am wondering if anyone has any experience installing one of these. Thanks y'all! Quote Link to comment Share on other sites More sharing options...
scoobiedubie Posted December 13, 2015 Share Posted December 13, 2015 Use pipe thread tape for the sensor below the thermostat. Use nothing for the one in the radiator. Use nothing for the one in the top of the engine. Quote Link to comment Share on other sites More sharing options...
hunkefunk Posted December 13, 2015 Author Share Posted December 13, 2015 I did just that! Thanks!! Quote Link to comment Share on other sites More sharing options...
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