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Re: Temp gauage suddenly drops. Posted by SWEDECAR [Email] (#112) [Profile/Gallery] (more from SWEDECAR) on Thu, 28 Feb 2008 11:59:28 In Reply to: Temp gauage suddenly drops., Quentin Harris, Wed, 27 Feb 2008 18:13:24 Members do not see ads below this line. - Help Keep This Site Online - Signup |
Is it an 02 and older 9-3 (03 conv)?
It's probably the coolant thermostat.
They have integrated a program into the fuel computer so if it doesn't see a certain rise in temperature over a certain time period, it makes the gauge drop down.
It also usually sets code P-0116
It's a good combination to replace both the temp sending unit and thermostat at the same time to get rid of tow common problems.
Anders
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