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My Toyota Noah 2004 engine turns over but will not start and the fans runs continuously. Why?

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  • 306 Answers

I think the fans do that, but engine probably needs a crank sensor if it has one.

Posted on Oct 12, 2018

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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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SOURCE: Both radiator fans on my 2002 Toyota Solara V6 run constantly

Check to see if the radiator fan relay has gone bad and needs to be replaced. Once you located the relay, (in the fuse box under the hood) Try swapping it out with another relay and see if the fans stop, if the fans stop working with the swapped relay, replace the relay. It's know for the relays when they go bad to stick and will have a close loop. Good luck and hope this helps. Keep me posted, be glad to help you get your car running 100% again soon.

Posted on Nov 03, 2009

  • 212 Answers

SOURCE: My engine fan continues to run after the car is

It should run until it cools. even after you turn it off

Posted on Jun 11, 2011

  • 54 Answers


did you have the relay checked? does the a/c light come on when you turn on the a/c?

Posted on Jan 24, 2012

Terry Corrow
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SOURCE: Toyota Noah 2002 model1AZ suddenly stops to revv as I drive. diagnosis gave code P1633. changed the ECU but the problem has continued. I just observed that the fans where not kicking automatically.

ecm malfunction,ects circuit,bring it to toyota,because you need to replace the ecm again,make them fix it and get your money back

Posted on May 25, 2015

  • 53736 Answers

SOURCE: Hi sir/madam can the 1998 Toyota liteace Noah 4cylinder diesel engine automatic transmission worked on the 4cylinder 3S Toyota Noah engine,if I'm planning on changing the engine from diesel to gas?

it should as the vehicle came with the diesel as an option
check for any wires and connections that may differ.

Posted on Jun 19, 2015

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Hey guys..i need your help i'm driving a 2002 model 1AZ engine toyota started by cutting as if im running out of petrol then the engine stops nd it couldn't start at all till we have...

You need 3 things to start an engine: spark,fuel and compression. Assuming the compression is ok, you've lost either spark or fuel. try spraying some starting ether into the intake hose and try starting it. If it starts for a moment, you have a fuel issue. If not, you may have a bad ignition coil.

Jan 04, 2018 | Toyota Cars & Trucks

1 Answer

Engine vibrations and overheating TOYOTA Noah 2003 1AZ ENGINE

Hallo on Toyota 1AZ vibration is usually caused by damanged engine mountings and the heating problem is caused by the clot of rust that accumulates on the temperature sensor it makes the fans come in late

Oct 08, 2017 | Toyota Cars & Trucks

1 Answer

I have 2006 Toyota Noah how long should my radiator fan run

I am not familiar with your model, but the "rule of thumb" is :
The radiator fan "to cool the engine" will run until the engine temperature has cooled sufficiently to allow the temperature sensor to kick off.
(That temperature sensor is screwed into the engine block.)
This may be as little as a minute to as many as 5-8 minutes.
If your car had air conditioning, that would be yet another fan, that should run only when the air conditioning is turned on.

Jan 01, 2017 | Toyota Cars & Trucks

1 Answer

It overheats after a continuous drive of about 100kms

There are items you need to check.
1. Is the cooling system losing coolant. If so the engine will overheat and you need to find the location of the leak. It may be internal to the engine or an external leak from a hose, a water pump seal or a crack in the radiator or a failing radiator cap.

2. Is the electric radiator fan coming on when the engine coolant temperature increases? If the coolant is getting hot the fan or fans should be running. If not your need to detect the cause of the fan not starting .

3. You may have a partial blockage in the radiator with a build up of debris which is slowing coolant flow through the radiator or a partial blockage in the cooling jackets in the engine. Coolant needs to be removed from the engine every few years, the radiator flushed out and then new coolant is added to the system.

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Toyota noah

loose ignition run wires at the switch, position sensors, faulty ignition switch, too many heavy items hanging from the key

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Toyota noah problems, my engine can not start,it is a 1AZ engine 2002, it started by overheating. I suspected it was the thermostat which we removed but still continued, i thought it was the temperature...

If it already started I don`t how it could be the memory from the computer.Start from the beginning make sure u have fuel,then check to make sure u have spark and compression in the engine.If u have all three it should start the computer should not effect your engine starting.

Apr 02, 2014 | Cars & Trucks

1 Answer

My toyota noah 2002 (1AZ engine) starts and fails to idle

The automatic idle valve may need cleaning or the control module that operates it may be bad.

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