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HVAC post?
the Heater fan motor is dead on high?
the Cluster gauges and warning lamps are all dead?
what is dead, and what is not?
power loss, engine power,
do check all fuses first. in both boxes
if fix the fan first. he heater fan nust work on high.
if not fix that. its very simple and if you fix that,there is a good chance
other things start working
the #1 thing to fix first is headlights or parking lamps dead .
as these all work keys in pocket. and is an easy fix.
Pull off the negative battery cable and unplug the sensor. See if the gauge needle returns to normal. Try tapping on the cluster to unstick the needle. No luck? Replace the temperature gauge.
The fuel sending unit is bad inside the fuel tank . You have to replace the whole fuel pump assembly to repair this problem .... Very common problem i bet i have replace 100's of these to fix the gauge .
Talking about fuel gauge issues and how do you how do you diagnose, ... is the dash unit right here, and obviously the gauge doesn't read correctly. ... to fix the fuel gauge, so you can actually fix the fuel gauge electronically by reflashing the program. ... How to Troubleshoot a Malibu Fuel Gauge & Dash Light Not Working...Could be a bad fuse - fuse # 17 is a 15 amp fuse for the fuel gaugeCould be a bad float on the fuel gauge sending unit inside the gas tank (
it's with your electric fuel pump ) If the float gets a pinhole or
crack in it , the float fills with gas and sinks so the gas guage reads
empty all the time Could be a wiring problem
if the fuel gauge doesnt work at all more than likly its the fuel level sending unit located in the fuel pump assembly, the only way to fix this is to replace the entire assembly, will run you roughly $300 just for the part.
do you know that petrol gauge is a sort of volt meter.there are five things requir to operate it.1st of all see to it that movement of gauge is working.give 1.5v of a battery directly to gauge for amoment if gauge doesn't move change the -ve to +ve even then it doesn't move it means gauge itself is faulty.if it moved look out for a wirewound resistor in fuel tank.if it is open then gauge will not work.if that is good look for voltage across resistor normally 12v are given.if 12 volts are there then look out for flot.connect a voltmeter to gauge,move the flot by hand very slowly and see if the varition in volt meter if it is not there then look out for connecting wires from gauge to fuel tank.i think you can do it now
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