Question about 2003 Hyundai Santa Fe
If you hillbillied the exhaust at the front manifold, then you are losing pressure and your O2 sensor, [oxygen sensor] won't read properly. This can cause the car to buck and lose power. Also, if the O2 sensor isn't working, it can cause your IAC, [ Idle air control] to start getting clogged up, and your engine isn't getting enough back pressure to run properly. I would suggest getting that pipe replaced first. If you do or did already, and it's still acting up, I would change the O2 sensor. And what kind of tow truck driver refuses to tow your car? ha ha Never heard that one before. Hope this is helpful, if you have anymore questions, feel free. Cheers from Nova Scotia! Please rate this solution
Posted on Jan 16, 2013
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Posted on Jan 02, 2017
The previous solution to check the idle air contol is in the correct area but needs some clarification.
The idle control is accomplished by two parts: Throttle position sensor ( $35 at Autozone) and idle contol valve approx $190. I replaced the throttle position sensor about a week ago and it runs perfect
to date but am a skeptic after almost two years of dealer incompetance. I researched all the sensors and failure symptoms on the internet and the throttle position sensor failure symptoms matched mine
exactly. See http://wiki.seloc.org/a/Throttle _Position_Sensor
Posted on Dec 04, 2008
SOURCE: I have car trouble.
well its kinda hard to tell whats the actual problem bc every thing is run by computer on ur vehicle but it could be a sensor of some sort or computer problem but its a good thing that the check engine light came on that mean it logged a diagnostic code and a professional mechanic can hook up a diagnostic computer to the car and see waht code it is and should be able to fix the problem for u good luck
Posted on May 21, 2009
Sounds like it might be either the fuel filter or the fuel pump, cause if you ran the tank down, you probably had sludge in the bottom of the tank that you sucked into the engine, you can try using a fuel system cleaner, you may have sucked sludge into the injectors running it, Zmax sells a fuel system cleaner, or there is one called RUN RIGHT, I would try putting some of that in letting it sit a few min then after it sat a few to soak in and break down the sludge, then start the car up, kick your idle up to around 1500 RPM do not go higher then that cause you will damage the engine, try that and see if that works for you, if not then I is probably the fuel pump or filter.
hope this helps.
Posted on May 29, 2009
Well, My engine light came on. I have an 03 4 cylinder sonata and we changed ignition coils, my car vibrates and was hesitating. disconnected battery to reset engine light/computer, and today my car died on me while going down the road. it starts and kills. and when it does run it sputters. i say most hyundais have similar probs.
Posted on Sep 07, 2009
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