2004 Hyundai Sonata Q&A
2004 Hyundai Sonata Question: Missing
Your car has On Board Diagnostics 2 (OBD2). Does this misfire cause the Check Engine Light/Service Engine Soon light to come on? A mis-fire should cause the check engine light to come on even if the light is not illuminated information to help fix the problem may be stored in the on board computer in the car in pending code information or live data stream information. I have seen ignition coil intermittent failure not set a code even though it was obvious the car had an ignition problem under load. Vacuum leaks at the manifold can also cause drivability problems, this should show up on a scan tool if the fuel trim figures are off. - patrick mannion
misses and has no power only when it is raining or really damp outside i changed the plug wires a while back but no help still has problem
Did tune up-Dist. cap/rotor/wires/plugs.96k miles. Ran 1 week ok then dead hole miss. Compres...
engine misses at idle or accelerating,change plugs and wires,check engine light says # 3 cylinder is misfiring
The problem is when you put it underload it misses and sounds like the motor is popping, this has slowly got worse over 10000kms, fuel economy is still excellent but when idling you can hear the mo...
I replied Dec 21 at 10:07. My first discription is Dec. 16 at 15:28 and you replied same day at 21:52. checked vacume, after engine warmed up, idle 700 rpm- vacume 15.5 steady needle. Ran poor...