1999 SL2 temp gauge (not coolant sensor)
#1
1999 SL2 temp gauge (not coolant sensor)
Hi, my niece bought a 99 SL2 and everything seems great but the temp gauge doesn't work. I've changed the coolant sensor and nothing. The needle sits about 8:00 which is way under C. If I disconnect the sensor it goes up to about 9:00. C is about 10:00. With it plugged in it never moves no matter how much it's driven. It has two wires running to it and all connections seem to be good. When I connect and disconnect the sensor I can hear a tiny click right around the intake manifold somewhere. Can't make out where because the neighbor has decided to jack hammer his walkway up today.
Thanks for any help
Thanks for any help
#4
#8
I believe that's a 5 volt signal across there
The sensor resistance should read AROUND
4.2 KOhms at 60F
7.5 KOhms at 40 F
13 KOhms at 20 F
24KOhms at 0F
The sensor resistance should read AROUND
4.2 KOhms at 60F
7.5 KOhms at 40 F
13 KOhms at 20 F
24KOhms at 0F
Last edited by derf; 02-16-2013 at 11:23 PM.
#9
Derf is correct about the voltage, and also the approximate resistance readings.
On the 1999 vehicles, there's only one temperature sensor, and it feeds it's signal back to the Powertrain Control Module (PCM).
My belief is that the only way you could get the temperature gauge to go backwards (as your original posting suggests), would be to swap the wires on the back of the gauge itself. I can't see that happening, however, unless somebody's been messing with the instrument cluster .....
On the 1999 vehicles, there's only one temperature sensor, and it feeds it's signal back to the Powertrain Control Module (PCM).
My belief is that the only way you could get the temperature gauge to go backwards (as your original posting suggests), would be to swap the wires on the back of the gauge itself. I can't see that happening, however, unless somebody's been messing with the instrument cluster .....
#10
Who knows what the previous owner has done. I know the engine has had a total overhaul though. Might have to look into an after market gauge. I'll see if I can get a tester on it this week.
Thanks for all the input.
Thanks for all the input.
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