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More overheating troubleshooting please!
#1

My turn -



Got the car back from the local specialist after an Oil change and some fuel line look-see. Driving home (in 50 degree weather), the temperature gauge went higher than I've ever seen it, right up to the top white mark. It seemed to move higher when idling. When moving, the gauge would go down a bit. Blasting the heater worked a little bit too.



On the freeway in 6th, the temp stayed up there, just below the top white mark. For troubleshooting purposes, I dropped it into 4th to see what it would do. The temperature IMMEDIATELY went DOWN a significant bit, indicating that higher revs lessened the problem.



So whatcha all think? Air pocket? Bad temperature sensor? I recently read in Excellence or Panorama about a technique for clearing air pockets in 944s, by turning a bleed screw on/near the thermostat. Is there a similar 968 procedure?
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1993 968 Coupe 6 speed, GP White, Black/Cashmere - RSBarn Catback, and chip, airbox mod, Euro turn signals, Koni's, M030 Sway Bars, KLA Strut tower brace, Zimmerman rotors, Hawk HPS, SS brake lines
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#2

This link should get 'er done for you!



http://www.968forums.com/index.php?showtop...=Cooling+System
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1994 968 Coupe, Red / Cashmere/Black, 6 spd, [acronym="Limited Slip Differential"]LSD[/acronym], Part Leather, Alpine, Hidden Radar, Airbox Mod, early Engine Decore Panels, more to come!

2002 MB Silver Arrow SL500 AMG Pack, one of 750 imported.

2008 SX4 Sport, 2004 GMC XUV, 1997 Towncar, police pack sleeper.
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#3

If bleeding doesn't work, I think you have a bad water pump. <img src="/forum/images/smilies/968/sad.gif" class="smilie" alt="" />



Jay
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“Faster, Faster, until the thrill of speed overcomes the fear of death.” - Hunter S. Thompson

"I couldn't find the sports car of my dreams, so I built it myself." ~Dr. Ferdinand Porsche

"968Forums, a quaint little drinking community with a serious horsepower problem"

"Life's journey is not to arrive at the grave safely in a well-preserved body, but rather to skid in sideways, totally worn-out, shouting, 'Holy sh*t! What a ride!'"- Unknown
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#4

Let's hope not! The water pump is brand new (less than 2000 miles), as is the radiator.



Thanks for the link, Darth.



Cheers,

-Mirror
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1993 968 Coupe 6 speed, GP White, Black/Cashmere - RSBarn Catback, and chip, airbox mod, Euro turn signals, Koni's, M030 Sway Bars, KLA Strut tower brace, Zimmerman rotors, Hawk HPS, SS brake lines
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