I have a 2007 Hyundai Tucson which has a strange starting issue. Sometimes it will start, other times it won't. It's thrown up a number of different codes, had a crank sensor replaced, but still start

SOURCE: location of the coolant temperature sensor

You will find this sensor where the fat hos comes from the radiator and conects to the engine block. It would be on the housing where the thermostat is located. If it is not there you should look for a sensor that has a wire connected to it anywhere on the engine block where a water inlet is located. I hope this helps. Don't forget to rate my answer, thanks.

SOURCE: key is stuck in ignition in 2007 hyundai sonata

The problem is in the tumbler(s) inside the assembly. Before you do anything, try penetrating oil to see if that works... otherwise, the entire assembly will need to be replaced.

PAUL MC G

• 1280 Answers
• Posted on Nov 04, 2009

SOURCE: faulty sensors in my hyundai accent.

Whenever the 'CHECK ENGINE' light comes on, the ECU (Engine Control Unit) sets a Diagnostic Trouble Code (DTC). These codes identify the particular engine management system which caused the light to come on.
You'll need to use/find an OBDII (On-Board Diagnostic) Scanner to retrieve any code which have been stored in the ECU computer. Afterward, we might be able to help you DIAGNOSE and perhaps eventually fix the problem.

Colin Stickland

• 22516 Answers
• Posted on Jan 25, 2011

SOURCE: 02 Hyundai Accent. With ignition

you can reprogramme this key yourself i think but iam not sure of the sequence ,i think you turn key to acc position 5 time whilst holding the brake pedal down reading the alldata bible it says only programable with diagnostic but it can be done with master key but i have roberto the hyandai man reprogramme keys at the airport parking when the original keys have been lost and a spare cure from the door lock barrel but he wouldnt show me but i am sure he never had a master key and the brake lights were on all the time he was doing it ,as i watched out the corner of my eye pretending to be taking a door lock out for him .

SOURCE: 2005 Hyundai Tucson v-6 4wd.

There are several dozen codes to the engine emissions system. From minor (gas cap loose) to major (ECM failure) Some senosrs can be bad and the engine runs fine, but you can loose 10, 20% fuel economy. You need to have the codes read. parts store do it for free. But don't buy a part just for the code. It could be something else causing the code to pop. Let me know.