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Joined: Aug 2004
Posts: 58
CEG\'er
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OP
CEG\'er
Joined: Aug 2004
Posts: 58 |
My 98 CSVT runs hot when engine is fully warm. I can drive around for about 20 mins and the engine remains perfectly cool. After 20 mins or so, the temperature gauge rises slowly and stops between the "M" and the "A" on the temperature NORMAL guage. I know this isnt really overheating, but it never used to do this. Could it be the T-stat? Water pump was changed about 10K ago with new metal impellar pump. Any comments will help. I looked under several other posts, but didnt find anything similar to my issue.
Thanks,
Marty
98 Black Contour SVT, #2386 of 6535
How can you live without CEG?
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Joined: Sep 2002
Posts: 1,788
Hard-core CEG\'er
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Hard-core CEG\'er
Joined: Sep 2002
Posts: 1,788 |
Yep, it's the t-stat. It's getting lazy and not closing properly when cold. Makes for extended warmups.
Just replaced mine last week for the same issue.
Steve
98 Contour SE Sport 2.5 Duratec ATX The wifey's car
89 Taurus SHO - 246K miles
94 SHO ATX - 190K
1997 F-150 5.4L ATX - The Workhorse 150K.
ANY THREAD WITH "OMG" or "WTF" ETC IN THE TITLE WILL BE IGNORED!
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Joined: Oct 2004
Posts: 1,456
Hard-core CEG\'er
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Hard-core CEG\'er
Joined: Oct 2004
Posts: 1,456 |
My Mystique's cooling fans come on low speed when the needle is over the M in Normal. See if yours do. Both of the fans should run. The temp needle will drop a bit. They will run regardless of engine temperature if the a/c is in use, and should turn on with the a/c.
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Joined: Sep 2002
Posts: 1,788
Hard-core CEG\'er
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Hard-core CEG\'er
Joined: Sep 2002
Posts: 1,788 |
I just re-read his original post. Never mind, it's probably not a thermostat issue. Thought he meant to was slow to warm up to normal temp.
It's probably not overheating, either.
Only way to know for certain is measure the temp of the system with an external device such as a non-contact IR thermometer.
Typical operating temp should be between 195 and 205 F. The low speed fans should come on around 210 and the high speeds around 215.
Comparing the external readings to the ECT PIDs and the in-dash guage readings will give you a good idea of the system's performance.
Steve
98 Contour SE Sport 2.5 Duratec ATX The wifey's car
89 Taurus SHO - 246K miles
94 SHO ATX - 190K
1997 F-150 5.4L ATX - The Workhorse 150K.
ANY THREAD WITH "OMG" or "WTF" ETC IN THE TITLE WILL BE IGNORED!
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Joined: Jun 2005
Posts: 5,345
Addicted CEG\'er
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Addicted CEG\'er
Joined: Jun 2005
Posts: 5,345 |
It could be the thermostat. If it is not shutting completely when it is "cold", it will take a long time to warm up. And then once warmed up, if it is not opening completely, will cause the engine to run hot. For $12 or so (thermostat), it seems too cheap not to try this. Or you could just remove it (see if it is closed completely) and test it in hot water and see if it is starts opening at 190 degrees F to completely at 216 or so degrees F.
Read this thread for additional info.
http://www.contour.org/ubbthreads/showflat.php?Cat=&Board=trouble&Number=1021265&page=&view=&sb=5&o=&fpart=all&vc=1
Last edited by Tony2005; 02/16/06 09:05 PM.
"Always do the cheap and easy ones first."
1996 V6 ATX 96K miles
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