I have a 2004 Hyundai Sonata with a ticking noise under the forward passenger side valve cover

Asked by Aug 09, 2016 at 08:12 PM about the 2004 Hyundai Sonata Base

Question type: Maintenance & Repair

My Sonata idles rough with the a/c on and the car in drive. I changed the Idle control valve, cleaned the throttle body, and cleaned the mass air flow. Still have a rough idle. I started the engine while cold and listen with a long screw drive. After a short while and the engine warming up it sound like the valve on the front passenger side started ticking. If so what can I do to get it to stop without doing a major overhaul. And can a sticking valve cause the engine to act like this with the a/c?

1 Answer

17,660

As far as the ticking is concerned change oil and add some Lucas Engine Oil Stablizer to oil. Do not think it has anything to do with a/c but try adding the Lucas first and see what happens it may help stop the running rough with a/c on.

Your Answer

Add photo

Related Questions

  • 2009 Hyundai Sonata - heater only blows warm on passenger side? 4 answers

    2009 Hyundai Sonata Limited

    -

    Maintenance & Repair

  • 2012 Hyundai Sonata Accelerating Problem 20 answers

    The car has been doing this since I got the car, brand new. Randomly when I start my car, always when its been sitting overnight or all day, it won't really accelerate. It will slowly but if i give ga...

    2012 Hyundai Sonata 2.0T Limited

    -

    Maintenance & Repair

  • My car won't start after I put gas in it. 29 answers

    My car runs fine normally with no issues stalling or killing the motor. When I need to put gas in my car it will not start. I have to crank the motor until it starts but it will stall immediately un...

    2004 Hyundai Sonata

    -

    Maintenance & Repair

  • Front passenger wheel squeals at high speed 4 answers

    My 2009 Hyundai Sonata has been making a strange squealing or whistling noise from the front passenger tire only when driving at 50 + MPI. The sound goes away when I touch the brake and stops comple...

    2009 Hyundai Sonata SE

    -

    Maintenance & Repair

  • My hyundai sonata is making a dragging noise? 4 answers

    I have purchased my sonata last yr, I moved upstate where they spread salt for snow, I have been noticing lately, that when I put my foot on the brakes, My car is making this noise like something is d...

    2001 Hyundai Sonata GLS

    -

    Maintenance & Repair

Search Hyundai Sonata Questions

Hyundai Sonata Experts

#1 toDumbToNotKnow
toDumbToNotKnow
Reputation 1,410
#2 Tom Demyan
Tom Demyan
Reputation 1,220
#3 dandyoun
dandyoun
Reputation 970
View All

Related Models For Sale

Used Hyundai Elantra
568 Great Deals out of 54,991 listings starting at $1,000
Used Honda Accord
811 Great Deals out of 81,609 listings starting at $899
Used Toyota Camry
1,103 Great Deals out of 96,275 listings starting at $1,250
Used Kia Optima
518 Great Deals out of 31,017 listings starting at $2,000
Used Nissan Altima
1,090 Great Deals out of 82,556 listings starting at $670
Used Chevrolet Malibu
1,007 Great Deals out of 85,671 listings starting at $1,995
Used Honda Civic
669 Great Deals out of 77,410 listings starting at $1,000
Used Nissan Maxima
347 Great Deals out of 25,221 listings starting at $1,400
Used Hyundai Santa Fe
280 Great Deals out of 16,646 listings starting at $1,995
Used Toyota Corolla
877 Great Deals out of 74,413 listings starting at $1,500
Used Chevrolet Impala
796 Great Deals out of 34,383 listings starting at $799
Used Mazda MAZDA6
135 Great Deals out of 16,976 listings starting at $1,900

Used Cars For Sale

2017 Hyundai Sonata For Sale
26,871 listings starting at $15,995
2016 Hyundai Sonata For Sale
40 Great Deals out of 4,123 listings starting at $9,995
2015 Hyundai Sonata For Sale
112 Great Deals out of 3,677 listings starting at $9,950
2014 Hyundai Sonata For Sale
97 Great Deals out of 3,115 listings starting at $7,500
2013 Hyundai Sonata For Sale
165 Great Deals out of 4,448 listings starting at $4,500