Temp Gauge not working

tfc946 · 10-27-2007, 05:32 PM

i have a 96 4x4 v6 and have had the temperature gauge replaced once before, right after i bought it used in DEC 06. just noticed yesterday that it isn't working again. anybody had problems like this before or any suggestions?

phantom · 10-27-2007, 07:19 PM

just a generic answer from a old style shade tree mechanic

are you sure it is the gauge ?

don't know if it is mechanical or electrical, but the sensor is usually down by the thermostat. (guessing electrical)(close to the block and the top radiator hose)
is there any reading at all or just stuck at the peg?
you could look at the wiring by the thermostat and see if any frayed wires/connectors. and check your fuse block for a bad fuse

in the older toyotas ( 72,3,4 celica) they had several things not listed like fuel pump fuse so you would go crazy trying to de-bug the wiring when a problem happened
there really isn't much to go wrong with the temp gauge

on the sender unit think if you have a VOM you could could unplug the sender and measure from the sender to ground on the block and see what the resistance is. then put in the sender and fire up and let the engine get warm, shut down and check the resistance again and it should have changed ! if not, either no water or it is faulty .
so that would narrow it down to the gauge or the wiring/power

tfc946 · 10-28-2007, 06:43 AM

thanks for the reply, i'll check the things you suggested and let you know what i find out.

10-27-2007, 05:32 PM	#1
tfc946 Member Joined: Oct 2007, #3183 Posts: 33 96 4X4 and 04 4X4 2004 Access Cab Automatic	Temp Gauge not working i have a 96 4x4 v6 and have had the temperature gauge replaced once before, right after i bought it used in DEC 06. just noticed yesterday that it isn't working again. anybody had problems like this before or any suggestions?

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10-27-2007, 07:19 PM	#2
phantom Senior Member Joined: Oct 2007, #3036 Gender: Male Posts: 1,152 base tacoma 2007 Regular Cab Automatic 2.7 hitch and wiring,bullbars,fog lights,hand made seatcovers, rear speakers in a reg cab,truck alarm,vent visors,rear view mirror,black low profile truck box, bed bolt d rings,pop & lock,bed extender, CUSTOM n-fab step bars,timbrens,sockmonkey mod	just a generic answer from a old style shade tree mechanic are you sure it is the gauge ? don't know if it is mechanical or electrical, but the sensor is usually down by the thermostat. (guessing electrical)(close to the block and the top radiator hose) is there any reading at all or just stuck at the peg? you could look at the wiring by the thermostat and see if any frayed wires/connectors. and check your fuse block for a bad fuse in the older toyotas ( 72,3,4 celica) they had several things not listed like fuel pump fuse so you would go crazy trying to de-bug the wiring when a problem happened there really isn't much to go wrong with the temp gauge on the sender unit think if you have a VOM you could could unplug the sender and measure from the sender to ground on the block and see what the resistance is. then put in the sender and fire up and let the engine get warm, shut down and check the resistance again and it should have changed ! if not, either no water or it is faulty . so that would narrow it down to the gauge or the wiring/power

10-28-2007, 06:43 AM	#3
tfc946 Member Joined: Oct 2007, #3183 Posts: 33 96 4X4 and 04 4X4 2004 Access Cab Automatic	thanks for the reply, i'll check the things you suggested and let you know what i find out.