Oil over-heat warning
#1
Teching In
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Oil over-heat warning
I went for a drive today, Hwy 17 to Santa Cruz (Ca) for those who know the road.
Conditions
* 15-20 miles up a reasonable grade
* Cool day mid 60's
* for about the last 10 miles when there was room
* in 3rd gear at around 4500-5000 RPM
My needle guage did not move much at all but my LCD oil temp popped on and my big LCD screen and buzzer went off (overheat warning blalabla)
The LCD guage went up to 300 deg., just as I reached the top. Checked all the fluids everything was fine.
I didn't feel I was driving that hard or long to heat up like that??
Does that sound normal to those who know?
Conditions
* 15-20 miles up a reasonable grade
* Cool day mid 60's
* for about the last 10 miles when there was room
* in 3rd gear at around 4500-5000 RPM
My needle guage did not move much at all but my LCD oil temp popped on and my big LCD screen and buzzer went off (overheat warning blalabla)
The LCD guage went up to 300 deg., just as I reached the top. Checked all the fluids everything was fine.
I didn't feel I was driving that hard or long to heat up like that??
Does that sound normal to those who know?
#2
Launching!
Join Date: May 2004
Location: On a mountain with snow
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#3
You would probalby have a 2004 that HAS NOT been fixed..
Relax.. this is a known issue... Take the car to the dealer and tell them what happened. There is a TSB (http://www.cadilllacfaq.com/faq/answers/tsb/index.html). GM made a small programming mistake which can be fixed at the dealer. This causes the oil temp to read too high (when in fact it is much lower).
See this: http://www.cadillacfaq.com/faq/answers/oilguage.html
Reed
Relax.. this is a known issue... Take the car to the dealer and tell them what happened. There is a TSB (http://www.cadilllacfaq.com/faq/answers/tsb/index.html). GM made a small programming mistake which can be fixed at the dealer. This causes the oil temp to read too high (when in fact it is much lower).
See this: http://www.cadillacfaq.com/faq/answers/oilguage.html
Reed
#4
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Originally Posted by ctsvett
You would probalby have a 2004 that HAS NOT been fixed..
Relax.. this is a known issue... Take the car to the dealer and tell them what happened. There is a TSB (http://www.cadilllacfaq.com/faq/answers/tsb/index.html). GM made a small programming mistake which can be fixed at the dealer. This causes the oil temp to read too high (when in fact it is much lower).
See this: http://www.cadillacfaq.com/faq/answers/oilguage.html
Reed
Relax.. this is a known issue... Take the car to the dealer and tell them what happened. There is a TSB (http://www.cadilllacfaq.com/faq/answers/tsb/index.html). GM made a small programming mistake which can be fixed at the dealer. This causes the oil temp to read too high (when in fact it is much lower).
See this: http://www.cadillacfaq.com/faq/answers/oilguage.html
Reed
#5
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on a side note, how warm should the oil temp be at? Mine is usually 206 ish unless i drive hard in which case it moves to 225 ish. are these normal temps?
Ben
Ben
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#10
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Originally Posted by 02 Tahoe on 20s
out of curiosity, how hot is too hot? over 250 is pushing it?
#11
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MarineSS - Is your V a 2004? Realizing this is a very technical question - Do you know what the operating system number is of your PCM?
For 2004s, there is an updated operating system (number 12592433) that the dealer needs to flash on the PCM with their Tech2 tool. This will "fix" the high oil temp warning (there is no actual sensor update).
For 2004s, there is an updated operating system (number 12592433) that the dealer needs to flash on the PCM with their Tech2 tool. This will "fix" the high oil temp warning (there is no actual sensor update).
#13
this fix does not actually occur in the ECM, it occurs in the gage cluster itself. Some dealers screwed the update up and had to replace the gage clusters.
No, an aftermmarket tuner cannot program this module from what I understand.
Reed
No, an aftermmarket tuner cannot program this module from what I understand.
Reed