3/4 on temp gauge is OVERHEATED. It sounds like a significant amount of air in the coolant system. I would not drive the car until you solve this. Possible explanations could be coolant loss from a multitude of places, or a bad head gasket.
There should not be any coolant leaking from the transmission line cooler area. The transmission circulates transmission fluid, not coolant. They should not mix. Ken Bogart ----------------------------------------------------- 96 Montego Blue FFS Coldside (His) 97 Black & Tan (Hers) 90 Crystal White (sons) ------------------------------------------------------ http://www.miatacare.com http://www.cincimiata.com http://www.bcchallenger.org MiataMail.com list owner On Mon, Feb 14, 2011 at 1:15 AM, Brent Ted Johnson <[email protected]> wrote: > this all started with idle droop when under load, especially a/c > i took apart the non-serviceable TPS to examine it, and soon after it > apparently failed. > around the same time my mileage dropped from 28ish to 19/20MPG > checking the codes, I had a TPS code (thats how I knew it was bad), and a 14 > code atmospheric sensor which I now know is part of the ECU. > today, I replaced the TPS with a brand new one and set it per the shop > manual. > surprisingly, the check-engine light is no longer on. i did not disconnect > the battery or anything. > i have not yet re-tested for codes (had to leave for work) > is it possible that the bad TPS could have also spoofed an erroneous > 14/Atmospheric Sensor error? > > > ANOTHER issue totally separate came up. the coolant was low so I topped it > off. it had been making gurgling sounds at startup lately so I knew it had > some air in it. took about a quart. i do know where it is leaking slowly, > the new radiator is dripping where the trans lines enter it. when the > weather improved I will resolve that. > anyway, today on the way to work, i noticed the temp guage was high around > 3/4 when it us typically 1/3. the heat was working fine. i revved the motor > and it dropped right back to normal. > on the way home from work the same thing happened, and a quick downshift > brought it right back and it never went up again. to my thunking, this is > either a sticky tstat, or else it is air bound somehow. > > > > > > ________________________________ > Subject: RE: Baro sensor needed! > Date: Sun, 13 Feb 2011 16:08:51 -0700 > From: [email protected] > To: [email protected]; [email protected] > > Other than blink codes, what's wrong with the car? What are the symptoms? > > Bill Cardell > TurboDog's Dad > Flyin' Miata > 1-800-359-6967 (sales) > 970-464-5600 (tech support) > www.flyinmiata.com > www.fmwestfield.com > > ________________________________ > From: [email protected] > [mailto:[email protected]] On Behalf Of Brent Ted Johnson > Sent: Saturday, February 12, 2011 3:13 PM > To: [email protected] > Subject: Baro sensor needed! > > hi all, I also have a code for the "barometric sensor" whatever that is... > anyone have one? > > ________________________________ > From: [email protected] > To: [email protected] > Subject: '92 IAC (Idle Air Control) needed > Date: Fri, 11 Feb 2011 23:38:42 -0500 > > hi all, > i was wondering if anyone has a working IAC. the one on my '92 DD isnt. > thanks > _______________________________________________ Miatapower mailing list > [email protected] > http://list.miatapower.net/cgi-bin/mailman/listinfo/miatapower > _______________________________________________ > Miatapower mailing list > [email protected] > http://list.miatapower.net/cgi-bin/mailman/listinfo/miatapower > > _______________________________________________ Miatapower mailing list [email protected] http://list.miatapower.net/cgi-bin/mailman/listinfo/miatapower
