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92 sc400 temp gauge pegged at hot

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Old 07-03-13, 07:36 PM   #16
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If you have changed out the cluster and the sensor, is there anything else? You have done all the troubleshooting that I can think of, but I still say it is a ground issue somewhere. If you find a loose ground, it should make the sensor work. The only thing I can think of is to switch out the temp gauge itself on the cluster that it is sitting pegged hot.
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Old 07-04-13, 03:16 PM   #17
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the only other thing i had replaced was the ecu.
someone said that there was a ground by the ecu
im not a mechanic
but i follow directions well
are there any pics of where this ground is??
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Old 07-04-13, 05:15 PM   #18
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I dont have any but just try and see where all the wires go. Pull and tug and see if anything changes.
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Old 07-06-13, 05:39 PM   #19
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latest adventure of the gauge....
burped coolant system
let car run with no coolant leak
looked inside car and needle was pegged at hot
took a ride and the needle read normal
went a couple of miles and temp gauge started wavering between cold and normal
then...
shot up to hot and stayed there
think im gonna pull the cluster and check it but i have no idea what im looking for


HELP!!!!!
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Old 01-10-14, 01:26 PM   #20
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Having a simular problem I don't uh understand it pegs to hot I checked the ground on the passenger floor board its good so is the rest of the grounds I replaced the temp sending sensor for the gauge same thing happen.

Only sensor I didn't replace was the ECU temp sensor
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Old 01-10-14, 01:42 PM   #21
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Ecu temp sensor has nothing to do with the cluster function. Your problem is not similar to the one in this thread. And I already told you in your thread what needs to be where.
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Old 01-15-14, 10:24 AM   #22
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We can test your gauge cluster, but like everyone else said it doesn't sound like a cluster problem.
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cold, engine, gauge, ground, harness, hot, location, low, pegged, reads, sc400, sensor, stuck, temp, wire

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