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My Hyundai sonata 2011 is losing power and coming on itself what is the problem

My Hyundai sonata engine lose power

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  • Hyundai Master
  • 507 Answers

The service and repair manual with diagram will help you to locate and fix the problem on your own easily and you will get the manual from the given link https://toolsnyou.com

Posted on Feb 09, 2019

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6ya6ya
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Posted on Jan 02, 2017

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SOURCE: how do you reset the check engine light on hyundai sonata?

Just disconnect your battery for a couple of minutes.

Posted on Jul 20, 2009

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SOURCE: 2006 Hyundai Sonata: Wet road causes power steering failure

Ok, the high pitch sound is your idle pulley bearings going bad. The splash of water is exactly that, the belt gets wet and slips. Definitely a pully, more than likely the idler pully.

Posted on Sep 27, 2009

MNfisherman
  • 11896 Answers

SOURCE: check engine warning light is on 2001 hyundai sonata

Purge Control Valve Problem

The "Purge Control Solenoid Valve" is the "Purge Control Valve".

Rough idle is a typical symptom of something amiss with the purge control portion of the evaporative emissions system. It could be the valve itself is not operating correctly, the evap canister (vapor canister) may be leaking, or full of raw gas instead of vapor, or maybe even the purge control valve is getting a faulty signal from the ECU.

The soleniod is checked by applying a voltage to it and checking to see if it closes, or opens (I'm not sure if its un-energized state is normally open, or normally closed). If the valve is bad it is a no-brainer to replace.

The vapor canister can be removed and checked to see if it is full of raw gas (not supposed to be), but checking it for leaks is a bit involved, and probably requires equipmet not normally owned by a home mechanic. Vapor canister failure on cars with a lot of miles is common. Replacement is the fix.

Of course if the ECU is not sending a purge signal to the valve correctly, figuring out why may proove difficult, and possibilities could even include a faulty ECU. I expect this is unlikely though.

It's a $20 part. I first would change pcv valve because it can give same error if it's plugged up. You can always remove it and shake it. It should rattle around real easy. If not, it should be repalced

Posted on Apr 17, 2010

  • 1 Answer

SOURCE: My 2000 honda crv loses power coming up a hill,

My car is doing the same thing.... I have found that the likely cause is the catalytic converter.....I just had my factory converter replaced when the clamp rusted out...about 5 months ago...I'm heading back to the garage to see what they can do about the replacement one failing.

Posted on Jul 26, 2010

ghost45
  • 1280 Answers

SOURCE: Hyundai Tucson - engine loses

The drivability issue you describe has a multitude of possible causes. The best advice I can give you is that you take/tow the vehicle to the local/nearest Hyundai Service Department and have it properly diagnosed. Possible causes:
#1. Fuel delivery (Fuel Pump pressure, Injector(s) clogged/leaking)
#2. Vacuum Leak(s)
#3. Faulty Throttle Position Sensor (TPS)
#4. Electrical (Wiring)
#5. Faulty Sensors (Crank Position Sensor, Cam Position Sensor, Idle Speed Control Actuator, Faulty Manifold Absolute Pressure Sensor, etc.)
#6. Contaminated Fuel
#7. Faulty Powertrain Control Module (PCM)
Best advice, get is properly diagnosed.

Posted on Jun 11, 2011

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Sonata spark plugs


here you go

Hyundai Sonata Spark Plug - AutoZone

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Rating: 5 - ‎25 reviews Spark Plugs produce the spark for fuel combustion in your vehicle's engine.

How to Change Spark Plugs on Hyundai Sonata - 4 cylinder - YouTube

2q==? 5:08 https://www.youtube.com/watch?v=Dr8HOJv7HzM
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I have a 2011 Hyundai Sonata GLS I'm driving on the freeway the car cut off. The aux power stayed on but when I tried to start the car it kept acting like it wanted to start but it wouldn't turn over.


take it to a dealership this car has a recall to check the engine for noise and replacement is does not pass the process tests it is campaign 132 per Hyundai if it has been performed and passed Hyundai will still check engine issues and make possible goodwill repairs BUT this is speculation until know problem with engine/car has been diagnosed

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Why won't it start?


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CarGurusJun 16, 2013 - 2009 Hyundai Sonata turns over but will not start, sometimes. - 70000 kms.

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My friend's 2001 Hyundai sonata does this. I found out many issues with the car, most of the issues were censors. It was the main issue in the Hyundai... Try scanning the ecu for codes, it will tell you something.

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My 2001 Hyundai Sonata's check engine light is on and it's running really rough, trying to die when idling and surging while being driven. Could his be a sensor, or maybe a coil? Thanks for any info you...


I Have similar problems in mine. At engine idle it sounds like the engine has "hiccups" and when accelerated i lose power and sounds boggy or like the engine is choking. i ran tests and it is caused by failire of the oxygen or O2 censor. If you look at the very front of the engine at the exhaust manifold where the exhaust system starts there will be 2 plugs on the right side of the manifold and the bottom one is the o2 censor.

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