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My temperature gauge,Tachometer,Speedo,Fuel Tank on my 2003 Opel Astra 1.6 16v Elegance doesn't work intermittantly

My temperature gauge,Tachometer,Speedo,Fuel Tank on my 2003 Opel Astra 1.6 16v Elegance doesn't work intermittently

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  • Opel Master
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Connection on the back of the dash needs cleaning if you push on the dash and it all works then this is the fault. sometimes hitting it works just fine for awhile but not to hard.

Posted on Dec 14, 2013

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6ya6ya
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Posted on Jan 02, 2017

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  • 51 Answers

SOURCE: wrong reading on fuel gauge

Normally this problem is due to a bad sending unit. The sending unit is the actual device which transmits the level of fuel in the tank to your fuel gauge. The most common cause is a stuck float. The device works by means of a flotation device, often made of a petroleum resistant plastic encasing a foam or cork "float, " which is attached to a light weight metal arm. The arm moves as the float raises and lowers with the level of fuel. This arm connects to a switch which increases and decreases resistance in the circuit. If the arm is stuck or if the float is allowing fuel in it you will get an inaccurate reading. A "logged" float (one filled with fuel) usually reads below the level, whereas an arm which is sticking will read above the level. Now, if the gauge has been reading this way since the car was brand new, the other likely cause is that the needle may have been improperly placed on the gauge at the factory, or the windings in the gauge may be under or over wound causing the inaccurate reading. If you are mechanically inclined you may be able to replace the sending unit yourself. Keep in mind this can be a dangerous procedure for a first time mechanic as it may involve removing the fuel tank from the vehicle. Some vehicles offer access to the upper portion of the fuel tank via an opening located in the trunk under the trunk mat/carpet or under the back seat. If this is the case removal of the fuel tank is not normally necessary, but you will still be working with the fuel tank. If you are able to do this procedure in the vehicle, keep in mind you will first want to disconnect power to the fuel pump and sending unit. You can disconnect the negative battery cable, but I believe on an the kadette you will need to obtain a special cable from your local auto part supply to maintain power to the ECU or PCM to prevent damage to the computer or loss of programming. At the very least remove the fuel pump relay and disconnect any fuse/relay related to the dash gauges prior to beginning this operation. Also be sure to remove the fuse for any possible ignition source inside your vehicle, such as dome and courtesy lights. Keep cell phones away from the work area as well. If you use a "trouble light" be sure it is marked as safe for use near fuel fumes. Keep doors or windows of the vehicle open to allow vapors to escape so you don't suffer any ill effects and to further reduce ignition hazards. If you must remove the fuel tank, practice good safety. Do not be under the tank at any time. Be sure to remove it with very little fuel in it. Go slowly and be sure you don't break any wires or lines. It is a very involved process and may be best left to a certified mechanic or at least one who is very experienced. Keep me posted and let me know if this helps!

Posted on Feb 01, 2009

  • 1 Answer

SOURCE: the gauges on my fiat scudo ie temperature ,speedo ,,clock mileag

check fuse 5 and 12 behind glove box

Posted on Jun 10, 2009

  • 4 Answers

SOURCE: TACHOMETER WORKS INTERMITTENT

Do you have engine code showing by chance? It's possible the crank sensor is bad or the connection to the ecm or pcm to the instrument cluster circuit board needs a look. If you need schematics check out www.promanuals.net they specialize in Dodge Ram service manuals.

Posted on Jun 24, 2009

  • 2 Answers

SOURCE: speedometer erratic/intermittent

I don't know what is causing this problem, but I know phil140701's answer is completely wrong on two counts. First, 740 Volvos starting at least in 1986 have electronic speedometers and no cable. There is an electronic sensor on the differential which sends a signal to the speedometer cluster. Second, if it were strictly mechanical with a cable then the voltage regulator could have no effect on it at all.

Posted on Sep 01, 2009

bbbman78
  • 681 Answers

SOURCE: all gauges in my dashboard

Yes, No, Maybe. It's usually the instrument cluster contact (plug). If it is then it should be replaced. If you start the vehicle and bonk the dashboard above the wheel as a diagnostic technique after a couple of tries sometimes it will spring back to life. However, I'd get a set of jumper cables, using just the negative terminals try this: Place one clamp on an exposed metal surface on the engine. Place the other clamp on the inner fender (metal), radiator support (creating a body ground), start it and take a look at the gauges. Depending on where you live and/or if there has been anything done under the hood. The connection may have become corroded or disconnected, or just plain bad at the battery. If it works, take a piece of heavy gauge wire and make a permanent one to bypass the original, or trace and fix the original. I hope I've helped. If so please rate my assistance and leave a comment for others to locate this solution in the future.

Posted on Jul 21, 2011

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