Join Date: May 2012
Santa Fe 2004 6 Cyl, 2.7 L AWD
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I have a Hyundai Santa fe 2004 6cyl 2.7 L , AWD. I am having problem of slow acceleration which is worse after a stop sign or red light. Sometimes while taking turns I feels like that I will not move and I was lucky to be not hit by a Car coming from opposite direction while taking a left turn today.
The Truck’s exhaust pipe broke recently and a auto garage welded it. But I am facing the above problem immediately after the repair of exhaust pipe. If I put more pressure on gas pedal then a mal function indicator comes and today I took it to another mechanic and he gets the error code of P0303 –engine misfire and wants to charge me ~ $600 $ to replace spark plugs and wires. The mal function indicator goes off also while I am driving and can comes back after a while or a day. With the indicator on, the car drives erratic (minor jolts ) for few metres and then its fine. Since when I am driving on highways then I can go higher speeds without any problem. Do you guys think it’s still misfire issue???
thanks for your reply John and Paul.
When i also searched online for the causes , the exhaust clogging is one of the causes of the slow acceleration. Another one is transmission going bad or timing belt. But as a newbie i really can't figure out the problem. I will try by putting a cloth on exhaust as you suggested.
But I will change the spark plugs/ wires anyways since i have got 195k kms on it ( I'm second owner and bought it @ 145K kms) and never replaced anything except engine oil, transmission oil and break pads/rotors.
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