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  • SN95 4.6L Mustang Tech

Check engine light causes?

  • Thread starter Thread starter 2013 Geee T
  • Start date Start date Mar 28, 2008

2013 Geee T

Founding Member
Sep 25, 2002
805
5
19
Oak Park, CA
Mar 28, 2008
#1
  • Mar 28, 2008
  • #1
While driving home today on the freeway in 30 degree weather with freezing rain my check engine light decided to come on.

Are there some common causes for that? Weather related?

Will disconnecting the battery possibly help?

Can Autozone check a code on a check engine light?

Will there be a 4th question?
 

crzyhrse99

Active Member
Mar 30, 2005
259
3
28
Kansas
Mar 28, 2008
#2
  • Mar 28, 2008
  • #2
Yes, Autozone can pull the code for you for free.

http://forums.stangnet.com/showthread.php?t=514350
 

2013 Geee T

Founding Member
Sep 25, 2002
805
5
19
Oak Park, CA
Mar 29, 2008
#3
  • Mar 29, 2008
  • #3
Its an engine coolant temperature sensor issue. It says it was operating too cold. I forgot to get the code number like in idiot though.

Where is the temperature sensor located at?
 

2013 Geee T

Founding Member
Sep 25, 2002
805
5
19
Oak Park, CA
Mar 29, 2008
#4
  • Mar 29, 2008
  • #4
I disconnected the battery and now the service engine light went off so Im going to assume it didnt like the cold conditions.
 

Mustang5L5

That is…until I whipped out my Bissell
Mod Dude
Feb 18, 2001
43,158
17,852
224
Massachusetts
Mar 29, 2008
#5
  • Mar 29, 2008
  • #5
Disconnecting the battery just resets the computer.

If there is a problem with the sensor...it will come back.
 

2013 Geee T

Founding Member
Sep 25, 2002
805
5
19
Oak Park, CA
Mar 29, 2008
#6
  • Mar 29, 2008
  • #6
I really think it was because it was super cold out driving 70 on the freeway. The car didnt want to warm up the whole way home. The temp gauge is fine now and goes to normal. If it comes back Ill worry about it then but for now I keep my fingers crossed.
 
B

bdcardinal

tree hugger
Jun 10, 2003
3,612
16
69
santa barbara, CA
Mar 29, 2008
#7
  • Mar 29, 2008
  • #7
weather has nothing to do with a check engine light coming on or not. if it comes on again get it checked out.
 

Hardtop68

Founding Member
Aug 23, 1999
193
1
16
Wherever they need me
Mar 30, 2008
#8
  • Mar 30, 2008
  • #8
If the coolant temperature does not go up to normal for a while the light will come on... this normally happens if the thermostat is not closing tightly and let some cooland pass through the radiator... this thermostat failure is more evident on extreme cold weather...

I changed mine one month ago as it was taking too long to reach normal temp... Now it goes up in a few minutes...

Cheers...
 
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