Question about Hyundai Motor 2003 Sonata

1 Answer

Air temp. sensor

Car is hard 2 start no check eng.light comes on car runs fine after starting if Iam stoping andstarting every 10 or15 min.it takes longer 2 start each time

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  • Contributor
  • 18 Answers

Your starter is probably going bad. If it strands you and won't start, try banging on the starter (hard) and if it starts, then your starter is bad.

Posted on Jul 17, 2013

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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maklean
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SOURCE: Hard to start 2004 sonata

Hi have a nice day!
Check EVAP Emission Control System Vent Circuit.

DESCRIPTION The evaporative system prevents hydrocarbon (HC) vapors from the fuel tank escaping into the atmosphere where they would form photochemical smog. Gasoline vapors are collected in the charcoal canister. The Canister Close Valve (CCV) closes off the air inlet to the canister for leak detection of the evaporative emission system. The CCV also prevents fuel vapors from escaping from the canister. When the engine purges HC vapors from canister, the clean air comes into the canister through canister air-filter and CCV. If open error message displayed is "P0447" If shorted error message is "P0448"

Posted on May 29, 2008

  • 1 Answer

SOURCE: 2002 Hyundai Sonata wont pass smog

CA you can take the car to a referree and get a one time waiver if you have spent a minimum of $450 on repairs not including smog fees. Gives you two years to get it fixed. Smog Referee Call Center
Toll Free: 1.800.622.7733
You can also sell the car to the state for "up to" $1,000

Posted on Feb 01, 2009

SOURCE: Check engine light

dear friend-what i can pick up from your explenation and the fault code is that your intake air pressure sensor is at fault.the smoke from the back of your was because the ecu requested more feul and thats why the smoke.feul cosumption will increase every time this light comes on

Posted on Jul 18, 2009

ghost45
  • 1280 Answers

SOURCE: I have a 2000 hyundai Sonata, 6 cylinder eng. My

The sensor is located on the left hand rear side of the block (near the bell housing). It is held in place by a 10mm bolt. It's to the right of the exhaust manifold (LH - radiator side) on the V6. Once you purchase the new sensor you'll be able to identify it on the engine. The connector to this sensor is located in the illustration.
2cb09a4.jpg A word to the wise... replace the O2 snsr as well.

Posted on Oct 04, 2009

  • 1 Answer

SOURCE: engine stalling when cold then won't start

i have the same problem with my elantra...after it stalls i get a clicking sound coming from around the fuel injector area....after 5-10min it then starts....hyundai has looked at it 4 times and cant determine the problem..

if you have any new insight on this problem please contact me agcman84@yahoo.com

Posted on Dec 15, 2009

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Car starts and runs fine then after 30 min or so runs rough


Check the primary and secondary resistance on your coil and resistance and gap on your spark plugs. Sounds like you have a high temp foul out.

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Hard to start when 30 degress or less out.


Engine coolant sensor and Intake air sensor bad -----tech terms( ECT and IAT) The way to check these you need to hook up a scan tool to the cars computer and both of the readings for these sensor should read the same. If reading is off by 2 degrees that's ok not too off. And it should be in the morning before you start your car up. Thats the time you check it. hope this help

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