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Temperature Gauge flickering when left hand indicator is on, and fuel gauge also moves up and down, new fuel pump was installed and cooling system was flushed. Any Ideas what may cause this problem?

Fan is working fine and water pump is almost new, but after I sent it to the new mechanic to change the fuel pump, now the fuel gauge is moving up and down and the temperature is fluctuating a lot

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

SpotBert
  • 231 Answers

SOURCE: temperature gauge not working 2005 chevrolet impala

There is a temperature sensor likely to be on your radiator. Make sure the connection is plugged in. Sometimes un-plugging and plugging it back will correct the issue. If not, you'll have to have some check if the sensor is faultly or if the electric wire is fault. You can check your fuse box. I don't think it's a fuse because other things on your instrument cluster would also not work.

Posted on Dec 26, 2008

  • 112 Answers

SOURCE: Temp gauge on dash fluctuates up and down

There is an air pocket in the coolant (upper engine underneath the manifold). Some GM manifolds have a defective design that allows the coolant to leak from underneath the throttle body assembly inside the manifold. This can contaminate oil (check for caramel milkshake color on dipstick), and cause air pockets to form underneath the sensor---thus the erratic signal.

Posted on Mar 26, 2009

  • 89 Answers

SOURCE: 1997 2.4L Chevy Cavalier LS; Low Coolant Indicator and Temp Gauge

take the cap off of the radiator (whil engine is cold) start and run the vehicle. keep runnig 30mins after the vehicle is hot keeping notice of the rad fluid level.
keeping the cap off will prevent the pressure build up that woiuld keep the air in the system, keep adding water or antifreeze as the level goes down. this may take an hour or so.
also with the cap off, you will be able to see if your water pump is operating correctly. you will visibly be able to see movement in the rad when the pum is engaged.

Posted on May 26, 2009

  • 12 Answers

SOURCE: temperature gauge fluctuating surges

That sounds like the classic symptoms of a cracked ECTS (temperature sensor). It is located on the head near the upper radiator hose and battery. You will see two wires (likely a yellow and a black) going to a small sensor hiding in a little cubby hole. If you pull off the connector (there are two points that if you squeeze it lets the connector come off) you will probably see that the connector is corroded because the plastic body of the original ECTS cracked and let a small amount of coolant into the connector. The ECTS is only about a $10-15 part, be sure to get the updated one with a brass body. Then the hard part is you will likely need to get a new connector, one of the best places for that is a junk yard, the temp sensor for the transmission and the air temperature sensor near the air filter use the same connector. When putting this in be sure to solder the connections and cover that with heat shrink tubing. There are video's from Richpin06A on youtube that will show you how if you have any doubts. The saturnfans forum is a great place for info too,
http://www.youtube.com/watch?v=yQx84-93WkE&feature=related

Posted on Nov 14, 2009

Molson02536
  • 3854 Answers

SOURCE: temperature gauge goes up all of the sudden

It sounds like you have air in the Cooling system and the bars leak permanent seal does not help. The sealer creates restrictions through out the water jackets and can cause the thermostat to stick. Replace the radiator cap and run the truck with the radiator cap on the first click and keep an eye on the over flow tank, refill the over flow as needed and make sure you have the heater on the highest setting to work out all the air in the system. Once all the air has worked it's way out of the system, then you can close the radiator cap to the second click to ensure full pressure is built up in your cooling system. Good luck and keep me posted.

Posted on Dec 09, 2009

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You might have to get the fuel pump out of the tank and clean the patenchio meter which moves up and down, clean it with an eraser on the end of the pencil for best results.
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2005_cluster_01s.jpg
1. Speedometer
2. Brake warning light
3. Turn signal indicator light
4. High beam indicator light
5. Malfunction Indicator Light (MIL)
6. Airbag warning light
7. Anti-Lock brake warning light
8. Tachometer
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Traction Control System (TCS) indicator light
12. Tire Pressure Monitor warning light (base)

13. Temperature gauge
14. Electronic Vehicle Information Display
15. Tow/Haul indicator light
16. 4WD Low mode indicator light
17. Seat belt reminder light
18. Cruise control indicator light
19. Odometer/Trip Odometer
20. Transmission gear indicator
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Gas gauge hand goes up and down


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I have a 95" model ford aspire. Right now am experiencing a problem on mostly the fuel gauge and the cooling fan. the gauge does not indicate the amount of gas, while the cooling fan does not run. What...


cooling fan has a relay. check it first. Then check the ECT, Engine Coolant Temperature Sensor. It is on the engine and sends a signal to the PCM, Engine Computer.
-----------------------------------------------------------------
Section 03-03: Engine Cooling 1996 Aspire Workshop Manual
DESCRIPTION AND OPERATION Cooling Fan, Electric sty~us~en~file=ani_caut.gif~gen~ref.gif WARNING: WHEN WORKING IN THE ENGINE COMPARTMENT, STAY CLEAR OF THE FAN BLADE. BECAUSE IT IS ELECTRIC AND TEMPERATURE SENSITIVE, IT CAN START AT ANY TIME IF THE IGNITION IS ON.
The electric cooling fan is an electro-drive type. Its operation depends upon engine temperature and ignition switch (11572) position. If engine coolant temperature reaches 97°C (207° F) and the ignition switch is in the ON position, the engine coolant temperature sensor (ECT sensor) (12A648) sends a signal to the powertrain control module (PCM) (12A650) which turns the engine cooling fan motor (8K621) and fan blade assembly on. Because it cannot operate unless the ignition switch is ON, the engine cooling fan motor and fan blade assembly does not operate after engine shutdown. The fan control relay (FC relay) is located in the LH front corner of the engine compartment, between the battery (10655) and the headlamp assembly. Circuit protection is provided by a 30A fuse labeled COOLING FAN in the main fuse junction panel to the left of the battery. If the vehicle is equipped with air conditioning, an additional relay is installed in the circuit. The A/C clutch control relay (19D572) bypasses the engine temperature portion of the circuit. The bypass circuit allows the engine cooling fan motor to operate whenever the A/C switch is engaged.
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11deef4.gif ------------------------------------------------------------------------------------------
Fuel pump/sender access is through cover under rear seat.


Fuel Gauge

  1. Remove the instrument cluster. Refer to the procedure in this section.
  1. Using a jumper, connect the battery positive terminal to the fuel gauge "+" terminal and the battery negative terminal to the fuel gauge "-" terminal.
  1. Connect one lead of a Rotunda Instrument Gauge System Tester 014-R1063 or equivalent to the "F-U" terminal of the fuel gauge (9280), and connect the other lead to the "-" terminal of the fuel gauge.
  1. Adjust the instrument gauge system tester to the resistances shown in the illustration.


    767858e.gif

  1. If the fuel gauge does not operate as specified, replace the fuel gauge. If the fuel gauge is OK, return to the Pinpoint Test.


Fuel Level Sensor

  1. Remove the fuel level sensor (9275). Refer to Section 10-01 for the removal procedure.
  2. Measure the resistance between terminal A and terminal B of the fuel level sensor.

    Connector Shown From Component Side
c0c9791.gif

  1. Adjust the fuel tank float to the following positions:
80cc074.gif



  1. If the resistances are not as specified, replace the fuel level sensor. If the fuel level sensor is OK, return to the Pinpoint Test.
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Mar 27, 2009 | 1995 Ford Aspire

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