Question about 2003 Hyundai Santa Fe

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I have car trouble.

As I was driving my 2003 Hyundai Santa Fe, the check engine light came on and it began to lose power and drop speed. When I got it off the side of the road, it completely died and would not start back up. What is the problem? I have 85,000 miles on this vehicle.

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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

  • gilligan2404
    gilligan2404 Apr 19, 2012

    Did you ever figure out what the issue was?

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2003 hyundia santa fe. starts fine idles fine speeds up fine,but when driving at a continous speed it loses power then speeds back up. what could be the problem


either fuel pressure from the regulator is messing up or your pump is about to die.. hard to say with out putting a gauge on the rail.

Apr 28, 2015 | 2003 Hyundai Santa Fe

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FITS ON:

HYUNDAI
2001 SANTA FE 2.7L ENGINE
2002 SANTA FE 2.7L ENGINE
2003 SANTA FE 2.7L ENGINE
2004 SANTA FE 2.7L ENGINE
2005 SANTA FE 2.7L ENGINE
2006 SANTA FE 2.7L ENGINE

2003 SANTA FE 3.5L ENGINE
2004 SANTA FE 3.5L ENGINE
2005 SANTA FE 3.5L ENGINE
2006 SANTA FE 3.5L ENGINE

2002 SONATA 2.7L ENGINE
2003 SONATA 2.7L ENGINE
2004 SONATA 2.7L ENGINE
2005 SONATA 2.7L ENGINE

1999 SONATA 2.5L ENGINE
2000 SONATA 2.5L ENGINE
2001 SONATA 2.5L ENGINE

2003-2008 TIBURON 2.7L ENGINE

2005-2008 TUCSON 2.7L ENGINE

2001 XG300 3.0L ENGINE

2002 XG350 3.5L ENGINE
2003 XG350 3.5L ENGINE
2004 XG350 3.5L ENGINE
2005 XG350 3.5L ENGINE

KIA
2004 AMANTI 3.5L ENGINE
2005 AMANTI 3.5L ENGINE
2006 AMANTI 3.5L ENGINE

2001 MAGENTIS 2.5L ENGINE

2002-2006 MAGENTIS 2.7L ENGINE

2001 OPTIMA 2.5L ENGINE

2002 OPTIMA 2.7L ENGINE
2003 OPTIMA 2.7L ENGINE
2004 OPTIMA 2.7L ENGINE
2005 OPTIMA 2.7L ENGINE
2006 OPTIMA 2.7L ENGINE

2002-2005 SEDONA 3.5L ENGINE

2005 SPORTAGE 2.7L ENGINE
2006 SPORTAGE 2.7L ENGINE
2007 SPORTAGE 2.7L ENGINE
2008 SPORTAGE 2.7L ENGINE

on Oct 24, 2013 | Hyundai Cars & Trucks

1 Answer

What causes my Hyundai Santa Fe to decrease speed an lose power ?


Go to pep boys or whatever parts store near you and they can read the codes on the csr for you.

Jun 03, 2014 | 2005 Hyundai Santa Fe GLS

2 Answers

2004 santa fe hyundai


it is probably going into a fail safe mode, get it to a dealer and have it scanned for dtc's

Apr 24, 2010 | 2004 Hyundai Santa Fe

2 Answers

What could be some of the reasons the check engine light will come on


to many to guess need to have system checked to get trouble code and go from there

Feb 02, 2010 | 2003 Hyundai Santa Fe

2 Answers

2001 Hyundai Santa Fe check engine light and transmision troubles


your guess is as good as anyones. Someone will have to look at this in person.

Nov 18, 2009 | 2001 Hyundai Santa Fe

1 Answer

Hi, I have a Hyundai Santa Fe 2003 SUV. It has about 110000 Km on its odometer. Recently, I have noticed that sometimes when I drive faster than 100 Km/h (60 Miles/h) on the HW its speed drops drastically...


First things first. My experience tells me you need to test a few things first before you spend a lot of money. Find an OBDII scanner & check for any powertrain trouble codes (DTC's). If any, investigate & repair as needed.
1. Check fluid level & condition of trans - should be at the 'full' mark and relatively clean. If low or dirty, replace & adjust level. Use ONLY Hyundai SPIII fluid.
2. Check/test the throttle position sensor (potentiometer) for any bad spots (use an analog ohm meter).. if you don't know how to do it, find someone who does. Replace as needed.
3. ZERO out the TCM (PCM). This clears all adaptive values in the computer (this computer is a learning computer and accumulates driver's driving habits). This can be done by disconnectiong both battery cables and touching them together for 30 seconds. Then reconnect them to the battery.
4. Now, if your Santa Fe has the 3.5 lit V6, then your engine is equipped with the ETS (Electronic Throttle System) which incorporates another sensor called the APS - Accelerator Position Sensor - check this one as well (also a potentiometer). replace as needed.

Sep 07, 2009 | 2003 Hyundai Santa Fe

1 Answer

Speedometer cuts out


You need a vehicle speed sensor. Good Luck

Dec 28, 2008 | 2003 Hyundai Santa Fe

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