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Seat Leon 1.6 SX 05 reg When i start my car up on a cold morning my temperature gauge beeps 3 times and then the red light on it flashes(coolant level & consistens its ok) It happens only after cold night - is that normal? Also sometimes revs on revolution counter going up from 600 to 900 and then back to normal(6000). But it happens only occasionally. is that normal or do I need to some sensor to be checked? Thatnks for your help. Adam

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  • Volkswagen Master
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Check the coolant fluid quality

Posted on Jun 23, 2017

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SOURCE: Check engine light, but no obvious problems

Good chance it is temp sensor, but have the codes scanned and that will tell you for sure. Another sensor I have run across could be oxygen sensor, sometimes they will make the vehicle run bad and sometimes they dont but in either case is does affect fuel mileage. Dont think either way you need to avoid driving your car unless maybe temp sensor showed overheating problem. But dont wait too long to get code scanned.

Posted on Sep 29, 2008

emissionwiz
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SOURCE: coolant temperature sensor location for 1999 Dodge Durango

The sensor is right next to the heater hose outlet on the front passenger side of intake manifold. It is very small with an oval shaped connector going to it. I have the same engine.

Posted on Oct 21, 2008

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SOURCE: 2000 vw beetle flashing red and beeping but car is not hot

Coolant is low enough to trigger the sensor. There's a pressure leak somewhere in the system. The sensor is faulty.

Posted on Sep 14, 2009

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SOURCE: 1997 Toyota Caldina GT-T 3S-GTE

Hi there,
As you say the tacho/speedo come "back up to normal" after the incident, I assume that they either stop working or become erratic while the dash lights are misbehaving.
If so, this sounds like a dash wiring electrical problem.
The O/D OFF light is lit by the switch on the shifter (switch also inputs to the ECU). The ENGINE light is driven also from the ECU but the SLIP light is driven from the ABS/VSC computer, although these two computers do communicate.
Best plan of attack would be interrogate the ECU for error codes or ask a Toyota dealer to do so. At least you'll have some clue to any problems that the ECU's may have picked up.
Contact me about checking for ECU error codes if you want to attempt it yourself. Although the Caldina has an OBDC2 connector, as I understand it it's not 100% compliant, so you'll need a Toyota compatible reader. Fortunately teh codes are also output via the CHECK ENGINE light.
If there's no problems there, I'd be pulling the instrument cluster and checking for wiring problems. I'm not sure where in the world you are but most ex- JDM vehicles could have modified with timers, speed-cut or fuel-cut devices that either have been poorly installed or are playing up and causing electrical problems.

Posted on Oct 31, 2009

  • 1 Answer

SOURCE: dasboard lights flash and warning beep operates (Seat Leon 2001)

flashing dashboard lights when the ignition is turned off

Posted on Jan 20, 2010

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