When I climb a hill, I am huffing and puffing. When I merge onto a freeway, I cannot excler fast enough.
Hyundai Q&AAsk Your Question
2004 Hyundai Sonata Question: I loose power when exclerating up a hill or onto a freeway.
Answer #1pushrod November 15, 2012, 10:59Master
Light on? Have a scan test and check cat. converter. Also fuel pressure.
Answer #2ziptie12 November 15, 2012, 12:45Master
Agree with wetry and is it running hot at all? How many miles on engine?
Replylaine, November 15, 2012, 18:27Rookie
Not running hot. Changed the plugs, wires, fuel injectors and cleaned the sensor.
Answer #3Greg's Orange Auto (15171 Answers) , Orange, CA - (714) 361-9386globalhelper November 15, 2012, 16:03Master
also u could repl fuel filter and see if that helps.
Answer #4csubak30 November 16, 2012, 01:29Master
With the work done already, I agree the most likely cause is the catalytic converter needing replacement. Exhaust is not flowing out properly causing the loss of power and the engine to choke itself under higher performance conditions.