Question about 1998 Hyundai Elantra

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Check engine light goes on and off

Would the temperture sensormake the check engine light come on and off

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Clean with a contact cleaner fluid all the conector of the sensors in the fuel inyection system TPS, MAP ACTUATOR etc, just disconect one by one an reconect after clean

Posted on Dec 23, 2008

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Blue temperture lights comes on while driving


It means the engine is still cold or it hasn't reached the proper temperature due to a faulty engine thermostat.

Jul 11, 2012 | 2005 Toyota Yaris Verso

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When I push the gas on my car it won't go past


The car runs fine after it warms up? Is it running with the check engine light off? But it does come on with the key before the engine is started? If the coolant temperture senser is bad ( or disconnected someway) the check engine light will be on but the car might run OK at normal operating tempertures. Have the car checked for codes. It's OBDI so you might have to find a service provider that can ceck the codes on this pre OBDII car. If it turly runs good at normal operating tempertures and the transmission is'nt low on fluild then the coolant senser does'nt always turn the check engine light on if it's bad and still reading something but wrong. Truly running good and the coolant is full ( all the way). chage the senser and see what happens as thier cheap and easy to change with commn hand tools.654437604.jpg

Aug 24, 2011 | 1994 Ford Escort

1 Answer

The temperture warning light comes on when driving and goes off after a while . plenty coolant in engine


It might not be related to the temperature but it can be due to failure of the thermister ( the temperature sensor) that is causing this erratic action.
So locate the sensor which is normally mounted on the area of the water pump .
Also check if there is any decolouration of the coolant if so flush and refill.

Sep 17, 2010 | 2000 Volkswagen Beetle

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When toyota vista 1999 econo sensor lights up,


What does mean econo light in toyota corona premio 2000?

Mar 30, 2010 | 2001 Toyota Camry

1 Answer

Temperture guage goes from 180 to 260 and bounces back and forth. The service engine soon stays on constant. The check guage light goes on and off when the temperture goes red line.


The check engine light is operating correctly as the computer reads a spike in temperature range in the engine. Your problem is more than likely a bad thermostat. I have seen times when a bad or loose radiator cap would cause the same symptoms. If the radiator cap has been removed recently it could be that it is just not on correctly. Make sure you check this only when your engine is cold. Hope this helps you out

Feb 06, 2010 | 2004 Chevrolet TrailBlazer

1 Answer

When cold transmission shifts thru all gears, but when it warms up it wont shift past second


If it shifts normally and then it warms up and goes backwards OK and the check enigine light works and isn't on while driving the trans has the right fluild and it's not low then the trans has bad troble. If the check engine light is on find and fix the reason Speed sensers Theres 3 leaks burnt fluild correct and see if its fixed the engine needs to run right and hit the right temperture as it runs. otherwise an expensivew rebuild is next or a used transmission.

Dec 05, 2009 | Eagle Talon Cars & Trucks

1 Answer

Ford Taurus Part # WT724


sounds like the gauge and sensor r workin properly....but you do have to address that coolant leak...that causes your temp to fluctuate cuz you cooling capacity is being reduced

Nov 13, 2009 | 2000 Ford Taurus

1 Answer

This Summer Engine hesitation during warm up. Fine after warm


Your right ! The coolant temperture senser is ( bent ) Lying to the computer to the real temperture of the coolant. mixture wrong and it runs bad till warmed up. Senser is cheap and easy to install. it won't code the check engine light unless it goes plumb open or shorted and doesnt happen too much. newer cars and trucks they fixed this and the newer computers conpare the air charge temperture senser, the coolant tenperture senser, the ambiant temperture senser and the interior temperture senser and it knows how long its beenoff and the newer ones still even know that time it is and gat to know its running pattern if it has one. So it tunes its self to the finest end for your pattern and remembers it. Some thing doesn't seen right and someone of these doesnt make sense it goes on its patteren and runs just fine guessing whitch sensers to believe and which to take with a grain of salt. It does it a few times too many it remembers which senser is the lyer dis regards it and turns the check engine light on uses the rest of the good sensers to run on and goes on its merry way telling you to take me to your dealer to get another car or be fixed. They hope you'll get another car so they can soak you again fixs your old one and make a ton trashing it so the government can pay them a bonus to get you in there to keep the ecomomy moving

Aug 12, 2009 | 1995 Ford F150 Styleside Regular Cab

1 Answer

I have 2000 Lincoln LS that makes a loud humming sound when acelerating. The temperture gage goes to hot and the check engine temp, light comes on. Also the front lights on running board come on...


check your antifreeze level and, potency your level seems very low if possible to avoid damage to your engine have a shop do this SOON!

Apr 22, 2009 | 2000 Lincoln LS

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