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gloverbaby
02-19-2010, 02:04 AM
Hello,

I was wondering if you guys knew how to fix the temperature gauge on the dash. It doesn't even move.

Thanks,
Eric

Gr1m
02-19-2010, 02:05 AM
replacing the thermostat will most likely fix your problems

[ion] C2
02-19-2010, 02:15 AM
or the ECT (engine coolant temperature) sensor.

gloverbaby
02-19-2010, 02:17 AM
I do believe the thermostat is fine.. Where do I find the ECT sensor?

gloverbaby
02-19-2010, 02:18 AM
Ooooh the fuel gauge doesn't work either but I think the item that measures that is oxidized (sp). It would be expensive to fix, eh?

Gr1m
02-19-2010, 02:44 AM
well the float that measures the amount of gas is part of the fuel pump so if you wanted a new one you would have to replace the pump, i think they are around $300 online

Nate's Alero
02-19-2010, 06:55 AM
nah, more like 75$ but with something like that, get the expensive one..


your ECT is gone.... what engine?

jayson_waltz
02-19-2010, 10:28 AM
well the float that measures the amount of gas is part of the fuel pump so if you wanted a new one you would have to replace the pump, i think they are around $300 online

wrong, you can replace just the sensor. i did.

Nate's Alero
02-19-2010, 10:31 AM
wrong, you can replace just the sensor. i did.

really? huh

alero_bmxer
02-19-2010, 10:34 AM
ya mine got just the sensor last time it was at the shop. a LOT cheaper than the whole pump.

gloverbaby
02-19-2010, 11:53 PM
So where is the ECT? :)

clutch1
02-20-2010, 03:25 AM
What engine?!?!

It's gonna be a 2 wire sensor, screwed somewhere into the side of the block or heads... usually near the upper half of the engine.

I'm toooo lazy to look up wire colors right now.. but I'll tell ya how to test it.

Unplug the sensor. Test both leads... one should have 5v coming in. Ohm across the sensor... should read something in the thousands (changes w/ temp, obviously).
Next, backprobe the ground wire with it plugged in!! Should see .0something volts... basically zero.
Then backprobe the power wire with it plugged in.. should see say... 2v (arbitrary number..) Run the car, as it runs and warms, the voltage reading should drop.

If it fails any of those tests, it's either the sensor, the plug, or the wiring...

gloverbaby
02-20-2010, 08:47 PM
I found the ECT sensor. It looks very discolored, almost a orange color on both wires. That seems bad.

Eric