× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network
2003 Hyundai Sonata 2.4L Poor Idle Quality, Hesitation, Misfire
Posted to Asian Driveability on 7/29/2009 8 Replies

Car came in with broken t belt/ valves. We replaced the head ( reman. with cams/ lifters) and timing belt, it runs bad at idle miss fires heavily, a bit smoother off idle, idle vacuum is around 12 inches and goes to 15 inches at 2500 rpm. Compression seems hig...

8 Replies Received (View Replies)

  Related Documents & Media  2003 Hyundai Sonata

 
Message Closed w/FIX

car Vehicle Data

2003 Hyundai Sonata

VIN KMHWF25S43
Engine2.4 L / 4 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Hesitation, Misfire
OccursAlways
Message Closed w/FIX

car Vehicle Data

2003 Hyundai Sonata

VIN KMHWF25S43
Engine2.4 L / 4 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Hesitation, Misfire
OccursAlways