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I have a 2005 Chevy aveo I when my car was sitting in a parking lot it started to get hot because the fan would not kick on so I was going to replace the cooling temputer sensor and I unplugged it and hooked a hot wire to it to see if the fan would kick on and after jumping it I got a spark so when I hooked it back up now my car won't start can some one please help

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  • Canadian Car Care Center

    You can not jump the electronic sensor to the battery this is totally

  • Canadian Car Care Center

    Add a CommentWrong

  • Canadian Car Care Center

    Add a Comment Do you have a check engine on dash before or after , you should scan it befor

  • Canadian Car Care Center

    Maybe you burn or shorted the ECM

  • Canadian Car Care Center

    Usually if if the fan is not kicking this is not mean that you have a problem with ECT sensor, could be fuse,relay,fan speed controller ..etc and if your car got over heated and you want to test the ECT sensor you just have to disconnect the plug of 2 wires, and fan will work automatically ..or if it's kicking that's mean you have another problem

  • Canadian Car Care Center

    I will send you the cooling fan wiring diagram and follow it

  • Canadian Car Care Center

    I hope this comment will help you ..let me know if you need more info

  • Canadian Car Care Center

    Chevy aveo follow the wiring diagram below, and you'll find your problem

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  • 8 Answers

Probably blew ignition switch fuse & now need to replace it. As far as cooling fan problem you need to check coolant level first. Make sure system has no air in it. If that doesnt provide solution change temperature sensor.

Posted on Oct 22, 2013

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Posted on Jan 02, 2017

  • 12 Answers

SOURCE: 2005 aveo won't start after sitting

battery may be shot, take it to a local parts store for free testing. if it's not that then it may be a charging issue or a short somewhere.

Posted on Dec 09, 2008

mnabi01
  • 94 Answers

SOURCE: cooling fans on 2001 chevy malibu will not come on unless ac on

the relays control circuit is grounded by ECM (computer) . to check this make sure the is hot enough for the fans to be commanded on by computer and check to see if you have voltage at relay and it has ground from computer . you may need ECM.
good luck

Posted on Jan 28, 2009

  • 1 Answer

SOURCE: 2005 Chevy Aveo - engine light and hold lights flash

I also had the same problem, But the problem lies in the switch the actual hold switch on my aveo there is a side entry way you can pop off the one on the left will give you access to the switch. what could of happen is theres is condensation in inside the switch. then when it gets cold it freezes causing the switch to malfunction. This could happen either by spilling something on the switch or using a cleaning solvent like armorall, YOU MUST BE CAREFULL WITH ANYTHING LIQUID NEAR THE HOLD SWITCH. Also the car going from warm when you drive then cold when you park it at night. My car was in warranty and remind you I came up with is the dealership had no idea what was wrong. they reseted the computer it worked for a week then was happening again. I have knoweldge in switches/wiring so i decided to check pot the switch and open it up and sure enough there was condensation took it to dealer told them to try a new switch works perfect and going on 5 months with out problems. Replacing the switch can solve pretty much every problem that is stated here i think. Also take a look at the wiring and connections for older aveos

Posted on Apr 01, 2009

  • 1 Answer

SOURCE: Volvo Cooling sensor / fan arent working

My air conditioner or fan turns on when the car gets too hot. It doesn't happen every time but often enough to drain the battery. It is a 2001 Volvo S60 turbo. I don't know where to start.

Posted on Jul 14, 2009

  • 2002 Answers

SOURCE: 96 NISSAN ALTIMA HARD TO START WHEN ENGINE IS COLD

This makes sense to me. The computer would send extra fuel to the engine on start up when it sensed it was cold, replacing the old choke system. The cooling fans turning on when you turn the key would tell the computer that the engine was, in fact too hot, and it would not compensate for the cold start up.
If you unplug the heat sensor how does it start? Check the battery voltage. A good battery should read in the area of 13.5 to 14 volts. Start the car and shut it off and re-read the battery voltage. If it doesn't drop any more than 1 volt there's nothing wrong with your battery. You could also go to a shop and get it "load tested" which would be a better test for sure.
If it starts properly with the heat sensor unplugged and the battery checks out, I'd replace the sensor first. It's possible that there is more than one problem contributing to your hard start but you will have to start with what you know for sure is wrong. Hope this helps.

Posted on Jun 30, 2010

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