Question about Lexus SC 300

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My Lexus Sc 300 isn't smoking anymore after I changed the Coolant Temparature Sensor, but, now it doesn't run normally before the 10 minutes after it starts.

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  • jeanarony May 31, 2010

    My Lexus Sc 300 was smoking, i changed the Coolant Temperature Sensor, now, it isn't smoking anymore, but the motor doesn't run normally while the plugs are new.

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Hi thanks for contacting Fix Ya. I want to help but I am confused. I don't know what the coolant temp sensor had to do with smoking. was that exhaust smoking? Do you have a check engine lite now? Also did you clear the codes after installing the temp sensor? Need to know that to help me answer your question. Thanks Darrell S

Posted on May 31, 2010

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How long has it been since you replace the ect? If it's only been a short time(1 or 2 weeks)replace the spark plugs with either NGK OR Nippon Denso and gap accordingly. Let me know if this does not cure the issue. Usually what happens is that the plugs get fuel fowled due to high fuel comsumption and never recover.

Posted on May 31, 2010

  • Kori Policy
    Kori Policy May 31, 2010

    How is the power and acceleration?

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1 Answer

I am spraying a ton of white smoke an have a miss also dumping gas like crazy.and just changed o2 sensors


white smoke mean leaking head gasket.check engine oil look like milk shake antifreeze mixing with the oil.

Sep 23, 2013 | 1992 Lexus Sc 300

2 Answers

97 es 300 car runs great stopped at store 30 min when restarted heavy white smoke


White smoke means water is getting into the engine from teh coolant system. Likely that your engine cylinder head has a crack, or head gasket is bad

Aug 12, 2012 | 1992 Lexus Es 300

1 Answer

Black smoke when car goes into high speed, also hesitation what causes this, and check engine light comes on


Black smoke is from to much fuel. You may have a bad 02 sensor. Have the codes checked first, even if the light doesn't stay on. 02 sensors are what help regulate the fuel mixture. if one or all is running lean, it is telling the computer to add more fuel. before you replace the sensor/s check for vacuum leaks. Let me know
Randy

May 19, 2011 | 1998 Lexus ES 300

1 Answer

Where is the coolant temparature sensor position?


The coolant temperature sensor is on the passenger side of the engine compartment located near the radiator hose connection to the engine. On the 2000 RX its a 2-wire connections with a brass washer used for sealing he sensor to the water outlet.

Dec 09, 2010 | 1999 Lexus RX 300

2 Answers

Antifreeze spraying out after car running 2 minutes. smoke everywhere


Hi,

You need to check your radiator, hoses and pump for leaks. It is very important you do not run the engine out of coolant as you will cook the engine which will require very expensive repairs.

The smoke may be the coolant spraying onto the exhaust manifold and evaporating.

Please check and advise.

Best regards,

David

Nov 24, 2010 | 1999 Lexus ES 300

2 Answers

1993 lexus sc300 missing


Check the temperature sensor, next to the temperature gauge sensor, did check engine light comes on?

Jan 22, 2009 | 1992 Lexus Sc 300

1 Answer

Will not start when warm


check the coolant temp sensor for the computer side.will cause simular problems.

Oct 17, 2008 | 1992 Lexus Sc 300

7 Answers

'92 Lexus Es 300 - White smoke from exhaust and smells like gas.


It's the ECU. Very common with the early '90s lexus cars. Everyone will say head gasket, but unless your oil is milky white, it's not coolant leaking into the cylinder.
Buy an ECu on ebay for less than $100, it plugs in under the dash, just like a computer printer. Easy fix.

Sep 14, 2008 | 1992 Lexus Es 300

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