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Old 10-05-2017, 01:45 PM   #7
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Join Date: Jun 2017
Location: Durham, NC
Posts: 17

1999 SW1
Default Re: 19999 SW1 temp gauge behaving oddly after radiator replacement

Originally Posted by 2NDSOUT View Post
Just to add- what is the condition of the Water Pump? I would check that as well for a slow weep, or any leakage from there. Water pumps on these cars aren't difficult to replace, but it is held in with a total Quantity of 9 (10MM Bolts)... 3 on the pully, and 6 on the water pump itself. After replacing a few in 20 years of ownership- I have gotten into the practice of- if I have to replace the radiator- I may as well replace the ECTS ($20.00), and the Water Pump (~$25.00)...

Get it all done at once- that way you aren't constantly draining and refilling the Coolant system multiple times.
As soon as I figure out where the water pump is, exactly, I'll have a look for any leakage. ECTS is fine, replaced 23 months ago. the DTC for it cleared as soon as I had a good ECTC in there (the first one I put in was defective, so I went back to get another one. Since then, the temp gauge has consistently read ~1/4 until just now. Hoses get hot, cabin heat is performing well. Fan is not turning with gauge ~7/8!! Checking the fan now to see if it will spin with 12V applied directly to it.


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