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odell
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New CEG'er
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Reged: 03/29/03
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Posts: 29
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Loc: upper Ohio Valley
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I heard on a commercial once that "Ford has a better idea "........wonder what it was? 
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Bob Blaylock
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CEG'er
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Reged: 04/24/01
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Posts: 379
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Loc: N38°35' W121°29'
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I don't know that it is really so much that the Zetect tends to run hot, as that the temperature gauge tends to read high at the temperature at which the Zetec normally runs. It doesn't appear to me that the gauge is a very precise instrument. When I got my Mystique, the gauge nearly always pointed straight up once the engine was up to normal temperature, and stayed there most of the time. OBD–II readings, which come from an entirely different sensor, showed that the temperature nearly always stayed very close to 192° F.
Then my gauge stopped working. I had to replace the sensor. Ever since I replaced the sensor, the temperature gauge now usually reads between A and L. The OBD–II reading still shows the temperature to be around 192° F. It isn't that my engine now runs hotter (it doesn't). It's just that the gauge now reads higher, at the same actual temperature.
I very much suspect that it is for very similar reasons that most Zetecs are thought to “run hot”.
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Hyster E60XM-33
1996 Mercury Mystique GS, Zetec, ATX
To email me, remove the string HatesSpam from this address:BobHatesSpam@Blaylock.to
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ScoobyRacing03
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Hard-core CEG'er
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Reged: 07/29/00
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Posts: 3465
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Loc: Montgomery, IL
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Originally posted by horseydug:
Thermostat test from '97 & '98 Ford manuals:
"Remove the water thermostat and immerse in a boiling antifreeze and water mixture. The water thermostat should begin to open at 86 - 90 º C (187 - 194 º F) 2.0L engine, 84 - 88 º C (183 - 190 º F) 2.5L engine and be fully open at 102 º C (216 º F) 2.0L engine, 99 º C (210 º F) 2.5L engine. Install a new thermostat if it does not operate as specified."
Kinda makes you wonder why Ford would use a thermostat that only starts to open past the optimum you state of 180 F degrees.
Perhaps you should check your facts.
what a manual says and what is ON these cars are two different things please check your facts first before telling someone else to check theirs.
I have had the 180 thermostat hector sopke of for over a year now and it made a BIG differance my temp gauge never goes past the O in normal and the car runs MUCH better because of it. I also picked up the stock one for the car new and put it in to do some testing and as sleeper stated it is a 195F my temp gauge was sitting in the M on Normal and acceleration was sluggish compaired to the 180 thermostat.
but what the hell could I know about a Zetec... OOH wait I own one do you?
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2003 Subaru WRX some mods
Even if you don't have the answer, you certainly have to admire the problem.
aka ZetecRacing
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Originally posted by ZetecRacing:
how old are your water pumps????
are you talking to me zetecracing? if you are, they are original.
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95 GL MTX Zetec, Carbon Fiber hood:
*neoprene seat covers
*new SVT rear bumper 
*Proud Owner of 1962 Chevy Corvette 427
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a KKM CAI will solve all these problems...  if only i could find one...
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95 GL MTX Zetec, Carbon Fiber hood:
*neoprene seat covers
*new SVT rear bumper
*Proud Owner of 1962 Chevy Corvette 427
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horseydug
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Hard-core CEG'er
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Reged: 03/19/02
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Posts: 2319
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Loc: Pickering, Ontario, Canada
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ZetecRacing :
Suggest you ratchet back a notch or three and reread sleeperZ's post and my response which was specifically in reference to his statement "180 degrees is the optimal operating temperature for an internal combustion engine running on fossil fuels."
Zetec/Duratec ownership is irrelevant regarding above, although I'm aware the thread is Zetec Heat.
Bob Blaylock:
Originally posted by Bob Blaylock:
I don't know that it is really so much that the Zetect tends to run hot, as that the temperature gauge tends to read high at the temperature at which the Zetec normally runs. ...
Well said. A one point temp calibration can be achieved by immersing a new sender in boiling water while connected to the car wiring. A second point can be obtained by using a boiling 50/50 solution.
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98 Mystique LS v6 atx 163,000km
97 Contour LX v6 atx 163,000km
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Loco4G63
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CEG road warrior
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Reged: 08/01/01
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Posts: 17248
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Loc: IL
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Originally posted by horseydug:
ZetecRacing :
Suggest you ratchet back a notch or three and reread sleeperZ's post and my response which was specifically in reference to his statement "180 degrees is the optimal operating temperature for an internal combustion engine running on fossil fuels."
Zetec/Duratec ownership is irrelevant regarding above, although I'm aware the thread is Zetec Heat.
Originally posted by Bob Blaylock:
I don't know that it is really so much that the Zetect tends to run hot, as that the temperature gauge tends to read high at the temperature at which the Zetec normally runs. ...
Well said.
It is optimal. When running my car at the track it made a 3 tenths of a second difference in times with differences in engine temp.  What would I know?  
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Hector
2003 Rally Red Mitsubishi Evolution VIII
257HP/259TQ
2005 Lapis Blue Mazda 6s
RET: 00 Cabernet Red Ford Contour Zetec ATX SUPERCHARGED
160HP/141TQ
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bentleywarren
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Hard-core CEG'er
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Reged: 07/26/02
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Posts: 1459
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Loc: Atoka, Oklahoma
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I still think a lot of the problem with the overheating is that the fans don't turn on when we would like for them to do so. I know that's my problem. My thermostat holds the temperature at R-M when I have highway air movement, but the fan doesn't turn on until L.
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95 Contour Zetec, ATX (wrecked, sitting in the barn)
95 Mystique Zetec, MTX
2000 Taurus SEL 3.0L Duratec
1994 Crown Victoria LX 4.6 V8
1993 Chevy Silverado 4.3 V6
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odell
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New CEG'er
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Reged: 03/29/03
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Posts: 29
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Loc: upper Ohio Valley
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My old 'Tour finally got to be too much to deal with & too expensive to keep, so i found a dealer who gave me twice the book trade in on it...I know I didn't stick around long , but thanks to all CEGers for all the help when i had it......I'm really gonna miss that car , it was a CHALLENGE.... 
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The Davis
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Hard-core CEG'er
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Reged: 05/21/01
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Posts: 2291
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Loc: Surprise, AZ
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Originally posted by bentleywarren:
I still think a lot of the problem with the overheating is that the fans don't turn on when we would like for them to do so. I know that's my problem. My thermostat holds the temperature at R-M when I have highway air movement, but the fan doesn't turn on until L.
Yet another item corrected w/ my Street Flight chip
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How many Vs would a VTEC TEC if a VTEC could TEC Vs?
The one, the only....FRNKNFORD
http://www.westvalleycs.com
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