Question about 1998 Chevrolet Malibu

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Fuel & Temperature Gage problem

The fuel & temperature gages on my 1998 Chevy Malibu do not work and a mechanic at a local garage told me that it was a known problem and I need to go to chevy dealer to get them fixed. He said there is some faulty parts that need to be replaced.

Is it a right info? how much would it cost me?


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Hi check the simple things first fuses then take the temperture senders wire off and ground it get someone to watch the temp gauge if the gauge is ok it will move straight into the hot if so change the sender switch then do the same with the fuel tanks sender unit wire if gauge is ok it will show full now presumming the gauges are moving and the fuses are ok the problem is on the clocks some cars have a removeable stablizer between the gauges if so it is a simple fix yates210456

Posted on Oct 13, 2008


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My temperature & fuel gauge doesn't work how to troubleshoot

To troubleshoot, I need year--make--model, vehicle sold in the US.
I'd check the coolant temp sensor and wiring circuits. The same thing for fuel gage sending unit. Sometimes for the fuel gage sending unit, I get a couple of resistors one represents empty, the other represents full. If the gage reacts properly then the problem should be the sending unit in the gas tank.

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2002 chevy malibu cranks wont start. fuel and temp gauge dont work. radio reads cal

Cranks won't start , Did you check for spark ,fuel pressure ?
Radio Setup .Will the vehicle communicate with a scan tool ? Fuel an temp gauges not working are probably bad step motors inside the instrument cluster that controls the gauges . Where do the gauges read 0 or something else ?
Engine Coolant Temperature Gage
The IPC displays the engine coolant temperature as determined by the PCM. The body control module (BCM) receives a class 2 message from the PCM indicating the engine coolant temperature. The BCM converts the engine coolant temperature into a percent gage deflection. The IPC receives a message from the BCM via the serial peripheral interface (SPI) indicating the requested gage position. The engine coolant temperature gage defaults to 38°C (100°F) or below if:
The PCM detects a malfunction in the engine coolant temperature sensor circuit.

The BCM detects a loss of class 2 communications with the PCM.

The IPC detects a loss of SPI communications with the BCM.

Fuel Gage
The IPC displays the fuel level as determined by the PCM. The body control module (BCM) receives a class 2 message from the PCM indicating the fuel level percent. The BCM converts the fuel level percent into a percent gage deflection. The IPC receives a message from the BCM via the serial peripheral interface (SPI) indicating the requested gage position. The fuel gage defaults to E (empty) if:
The PCM detects a malfunction in the fuel level sensor circuit.

The BCM detects a loss of class 2 communications with the PCM.

The IPC detects a loss of SPI communications with the BCM.

When the fuel level is less than a pre-determined value, the low fuel indicator illuminates.
DTC P0462
The fuel level sensor changes resistance based on fuel level. The PCM monitors the signal circuit of the fuel level sensor in order to determine fuel level. When the fuel tank is full, the sensor resistance is high and the PCM senses a high signal voltage. When the fuel tank is empty, the sensor resistance is low and the PCM senses a low signal voltage. The PCM uses the signal circuit of the fuel level sensor in order to calculate the total remaining fuel in the tank. The PCM sends the fuel level percent via the class 2 serial data circuit to the body control module (BCM). The BCM converts this data and sends a fuel gage percent deflection to the IPC via the serial peripheral interface (SPI) in order to control the fuel gage. The fuel level information is also used for misfire and EVAP diagnostics.

For the DE 100 series radio, complete the following procedure, using a scan tool, in order to properly set up communication:

  1. At the Main Menu screen, select: Diagnostics.
  2. At the Vehicle Identification screen, select the following options:
  3. ?€¢
    Model Year

    Passenger Car

  4. At the System Selection Menu screen, select: Body.
  5. At the Vehicle Identification screen, select the Platform type.
  6. At the Body screen, select: Radio.
  7. At the Radio screen, select: Special Functions.
  8. At the Special Functions screen, select: Radio Setup.
  9. At the Radio Setup screen, press ENTER. The following test will set up a new or existing radio.
  10. Select one of the following options:
  11. ?€¢


  12. Press the ENTER key.
  13. Verify that the scan tool displays "Test in Progress."
  14. Verify that the scan tool displays "Test Completed Successfully."
  15. Press EXIT on the scan tool.
Important: The radio set up will configure the following systems:

Diagnostic Trouble Codes

Class 2 Radio Messages

Country Code

Chime Volume

Chime Level

12/24 Hour Clock

Without learning the VIN, the radio will display a locked message (LOC).
The radio setup procedure will also clear the following messages:



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You need to find out the fault code that is stored that is causing the check engine light, the whole thing may be related to one failed part like the temperature sensor or the wiring to it.

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I have a 2008 Malibu LS, 4 cylinder.My engine light has been on and at the same time my temperature gage does not work and the fan keeps running, then the engine light went out for a couple of days, the...

Your best bet would be to have the vehicle checked for DTC'S - diagnostic trouble codes ! May not be a sensor problem , could be a wiring issue . Most auto part stores will do this for free , and if it is a sensor they can show you where it lives an how to change it !

May 16, 2017 | 2008 Chevrolet Malibu

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My gas hand and the temperature hand has stop working and I would liketo know what caused it and how can it be fixed?

most fuel gage problems are usually a bad fuel level sensor in the fuel tank. the fuel level sensor is mounted to the side of the fuel pump assembly. this requires the fuel tank to be removed form the vehicle to replace the fuel level sensor

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I knew that my thermostat wasn’t bad because I replaced it a while back. I then checked my sensor; I unhooked the two pin connector of this sensor at the block and suspected the needle to drop to zero. This was not the case.
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I then called a family mechanic and he instructed me that there is also a "temperature switch" that also is interconnected to the coolant temperature gage. I then found this switch which was threaded into the block near the firewall of my car. I unhooked the 2 pin connector and suspected that the gage would return to the neutral position. And sure enough it did!!
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