Hi All, I have a 2004 Hyundai Sonata 2.7 6 cyl with about 160K. I bought it used and all has been fine till yesterday. While driving home the throttle suddenly started to surge wildly. While holding the pedal down 1/2 way it will rev to 4-5K for a few seconds then drop all the way down to nearly 0 for a few seconds then repeat this sequence. I checked the code and had a TPS error No CEL, Replaced from Autozone, but still is doing this.I cannot drive past 30- 35 mph. CAN anyone HELP Me


Asked by Feb 10, 2014 at 09:20 PM about the 2004 Hyundai Sonata Base

Question type: Maintenance & Repair

Hyundai Sonata Fluctuating RPms, Surging

3 Answers


Is the transmission shifting normally?


Yes, i thought maybe it was that, so i put it in park, held down the throttle and it did the same thing with no engine load


TPS sensor or the wiring in the connector to the TPS sensor. (throttle position sensor.)

1 out of 1 people think this is helpful.

Your Answer

Add photo

Related Questions


    I have a 2009 Hyundai Sonata purchased new and currently have 55,000 miles. At approx 20-25,000 miles the car started misbehaving. When reaching a speed of anywhere from 40-65 mph, I would take my f...

    2009 Hyundai Sonata GLS V6


    Maintenance & Repair

  • sun visors broken anyone had this problem 37 answers

    I know they have a recall but mine isnt part of it apparently the problem is more wide spread then they want to recall. Where are some places i can complane to add to the recall list. Or if anyone kno...

    2006 Hyundai Sonata GLS


    Maintenance & Repair

  • My car won't start after I put gas in it. 27 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

  • Misfiring/Hesitation issues. 29 answers

    I love my Sonata so far, but the big issue and only issue (other then MPG, on the low end) is I have had my "Check engine light" come on and blink 3 to 5 times. I took in under warranty service and w...

    2007 Hyundai Sonata


    Maintenance & Repair

  • Engine stalls / hesitations at idle and low acceleration 66 answers

    Model: 1999 Hyundai Elantra GLS 2.0l DOHC Odometer: 78,000 Recent work: replaced MAF with new, cleaned ignition plate, ran through 1 tank with Techron fuel system cleaner. The problem has a few vari...

    1999 Hyundai Elantra 4 Dr GLS Wagon


    Maintenance & Repair


Looking for a Used Sonata in your area?

CarGurus has 51,546 nationwide Sonata listings starting at $1,200.


Search Hyundai Sonata Questions

Hyundai Sonata Experts

#1 toDumbToNotKnow
Reputation 1,260
#2 Tom Demyan
Tom Demyan
Reputation 1,130
#3 dandyoun
Reputation 910
View All

Related Models For Sale

Used Honda Accord"
1,280 Great Deals out of 78,152 listings starting at $1,395
Used Toyota Camry"
1,595 Great Deals out of 97,672 listings starting at $895
Used Hyundai Elantra"
824 Great Deals out of 51,593 listings starting at $950
Used Kia Optima"
593 Great Deals out of 32,296 listings starting at $1,000
Used Nissan Altima"
1,397 Great Deals out of 87,430 listings starting at $1,195
Used Honda Civic"
1,135 Great Deals out of 57,877 listings starting at $1,295
Used Hyundai Santa Fe"
662 Great Deals out of 35,568 listings starting at $800
Used Chevrolet Malibu"
1,101 Great Deals out of 72,184 listings starting at $1,300
Used Toyota Corolla"
1,378 Great Deals out of 66,831 listings starting at $1,295
Used Nissan Maxima"
449 Great Deals out of 23,905 listings starting at $1,500
Used Mazda MAZDA6"
230 Great Deals out of 15,125 listings starting at $1,495

Used Cars For Sale

2017 Hyundai Sonata For Sale
20,374 listings starting at $16,130
2016 Hyundai Sonata For Sale
86 Great Deals out of 8,280 listings starting at $11,995
2015 Hyundai Sonata For Sale
199 Great Deals out of 4,995 listings starting at $9,191
2014 Hyundai Sonata For Sale
85 Great Deals out of 1,955 listings starting at $7,888
2013 Hyundai Sonata For Sale
332 Great Deals out of 6,071 listings starting at $6,450