Question about 2003 Toyota Corolla

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High rev at cold (winter cold!) idle

When the weather gets cold after start the engine revs at 2000-2200 rpm. Some times 'hunts' up and down. No engine light, no code. After warm up the car's idle settles to normal speed. The Toyota technician was not sure why. Otherwise the car runs fine. The noisy cold start is annoying. Any suggestions?

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Your toyota technician should know what a "cold starting solenoid" is. It is the little thing that works your throttle until the motor warms up and something else takes over. I'd suggest going to another technician.

Posted on Nov 28, 2013

Testimonial: "I will look into this. It kind of makes sense, and simple. Thanks a lot"

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Don't know if you have a diesel but some newer diesels have a setting in the computer that revs the motor until it gets to normal operating temperature. I know that chevy you can turn off or on

Posted on Nov 28, 2013

Testimonial: "As far as I know Corollas are only sold with diesel in Europe. Thanks anyway."

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Posted on Jan 02, 2017

stormbrewin
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SOURCE: 1985 toyota 4x4 22re missing and rough idle

Have you pulled out the spark plugs to see if there are any tell tale signs on them.They are a good indicator of many problems that occur and can save a lot of time isolating the problem.They should all be the same colour.Is the air box and lid properly secured with no leaks or splits in the intake tube.Have you put injector cleaner in the fuel tank to clear up any possible dirty injectors.Therse a few things your problem could be including engine vacuum leak which you can find by lightly spraying carburettor cleaner around suspect places such as inlet manifold and around injector seals.

Posted on Oct 24, 2008

junmag
  • 175 Answers

SOURCE: car starts then cuts out

what engine is installed on your car? my initial impression is the ignition igniter module.

Posted on Jun 06, 2009

  • 89 Answers

SOURCE: Idle surges when it warms up.

sounds like an engine management fault it will need to go on a computer

Posted on Jul 11, 2009

  • 521 Answers

SOURCE: Oil light in 1999 Toyota camry comes on when idling.

bad to worn out oil pump or excessive oil passage clearances that allowing more oil to pass thru them at a lower pressure due to the bigger opening. It can be a sign of an emminant engine failure due to oil starvation.

Posted on Aug 04, 2009

  • 64 Answers

SOURCE: Engine over revving at idle

looks like yor air valve is not working properly.check the water imput (could be clogged). also,did you removed your termostat? if so,put it back and solve the problem.

Posted on May 02, 2010

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