Santa FE SM (2001-06) :: 2003 Jerks At Highway Speeds
Jul 3, 2009
We have an '03 Santa Fe (2.4L). We are the original owners.
About 18 months ago, one of our Ignition Coils cracked and caused a misfire when then engine was under load. I replaced the coil, wires, and plugs myself at that time.
Since that time, we have experienced intermittent engine jerking while at highway speeds. There does not seem to be any pattern, and it does not happen every time we drive it.
I took it to the dealer who diagnosed a valve cover leak. They replaced the gasket, one ignition coil, wires and plugs. The problem still happened intermittently after that. I brought it back to the dealer, who diagnosed a valve guide/seat leak. Oil is getting into the cylinder and fouling the plug they say.
I could not afford the fix (and was very dissatisfied by the service I received) so the dealer recommended to change the plugs every 3 - 5K miles to get me through. I was told this on 03/31/09 (125695 miles). I replaced the plugs, wires, and BOTH coils again at that time.
Last week @ 130K miles the engine jerked again. I replaced all four plugs again Sunday morning, but the ones that I pulled were NOT look oil fouled. I showed them to a mechanic friend and the guy at the auto parts store. Both agreed that the spark plugs looked almost new. Sunday evening, while driving on the freeway, the car jerked again!
Since this happened again SO soon after changing the plugs, I really have a hard time believing the valve guide diagnosis. Some possibilities I have seen/heard:
- Crank position sensor or camshaft sensor (This was replaced at 78K miles along with the all of the belts)
- Clogged fuel filter
- Bad O2 sensor
- Vacuum leak from the hose that is between the throttle body and the engine casing
- The dealer's valve seat suggestion
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My '04 Santa Fe (135K miles) has been doing this for a little while.
Between 65 - 75 MPH on the highway, under acceleration, I experience what I can only describe as a "shudder".
I don't believe it's a wheel balance issue, because if I'm coasting or maintaining that speed everything is stable.
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2003 hyundai santa fe 2.4l ... When driving on highway speeds of 65 miles hour, I take foot of the accelerator and I put it back on to gain speed , it starts jerking or bagging. Also in the city when I press accelerator seems to have no power. I have no codes or check engine light on, what could it be?
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Purchased this car new. 2008 GLS w/ V6 2.7L engine. Wife's car, so I rarely drive it. She's complained for a month about an intermittent issue with the jar "jerking", usually during slow speeds.
I felt it for the first time myself. Was halfway through a pretty tight curve at around 20 MPH, starting to slowly accelerate when I felt a definitive lurch. might have been momentary loss of acceleration, or transmission. Not sure which. No CEL thrown.
I did see another thread mentioning a 2007 with a similar issue, but that person had codes thrown that pointed to a Throttle position sensor and a need to reflash a transmission. Think I'm seeing the same situation, or would this be different ? Absent any CEL, I'm sure the dealer will not be able to find it....
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My daughter was driving our 3.5L Santa Fe on the highway when it decelerated. Stepping on gas and no acceleration. She said she got a CEL and oil light. She was able to pull over to the side of highway and turned ignition off and on and she was able to drive off the highway and called me. She was about 120 miles from home. She said the cel light and check oil light were now off and I had here check the oil and it was at full.
I had her drive in the right hand lane without going over 60 and she made it home no problem. I took it out for a drive and no issues. Do you think this is a crankshaft position sensor problem?
mileage is 170k - timing belt was replaced at 130k.
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2003 Santa Fe - Loss of power while driving on highway. Dropped from 60 to 15 MPH in matter of seconds. Feels like a couple of cylinders (3.5 liter) are not working.
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On my '03 Santa Fe 2.7, this has happened twice, with 500 or so uneventful miles in between. At highway speed, it just all of a sudden loses power and will only go about 50 mph with accelerator to the floor. When you stop & put in neutral, it only revs to about 3000 rpm, with pedal to the floor -yet idles fine. Then when you shut it down, wait a few minutes & start it back up, it's fine. Is this a fuel problem or what?
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Today, while driving on the highway, my heater just quit working. My car is equipped with the automatic climate controls and so I switched it to manual mode to see if the heat would come back. The heat does not seem to be mixing at all with the air.
One weird thing is that if I set the temperature to 90 degrees then the A/C mode will turn off and blow pure hot air. However, if I go to 89 degrees then the heat will stop and the A/C will turn on again. Turning off the A/C manually does not bring the heat back.
What could be wrong? I might just try unplugging and reconnecting the controls since I was messing with the radio a couple of days ago.
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I have a 2007 Santa Fe with the 2.7L engine and 62K miles. At 65-70 mph I have a very noticeable miss. The check engine light has not come on and a scan at a Parts House shows no trouble codes.
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I changed the purge valve because it was hard to fill up. It idles fine but when I drive it at 40 and just cruise without a load on engine it starts to jerk or misfire. I'm going to change plugs even though they don't look bad and wires.
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I have a 2010 Santa Fe AWD, I notice that when I apply the brakes at 100 KM or higher I hear a 'thumping' noise, the noise is hard to describe, thumping is the best I could come up with, the noise goes away once the vehicle is down to 80 KM, why this is?
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This has happened a few times when the car jerks, check engine light comes on and seemingly goes into limp mode. Cannot engage 4 wd either. I leave the car for while then come back and the engine light is off and the car works normally.
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While driving at between 20-45 MPH in warm weather only IDEAL SPEED IS 38-42 .. At times the car jerks forward and downward like, even slowing down at red light: Seems like the whole problem is coming from transmission! (Sensors)? The car is cursed. Example:
1- The symptom seems like your driving in drive position then all of sudden it shifts to low gear
2- When driving normal then it seems like the car shifts to neutral and the RPMs shoot up to 3-4
3- Sometimes when stopped the steering wheel shakes bad.
The car runs normal in winter time? Doesn't do it everyday.
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I recently had my 2013 Santa Fe Sport serviced at a dealer and finally remembered to tell them about the front windows wind noise at highway speeds. It has been ongoing for quite some time. When the service rep brought my vehicle back to me he told me that Hyundai was aware of the problem, and that it was caused by the moon roof. I did not see any recent posts to the forum or on the internet regarding the window noise, except for some older ones referencing noise related to the side view mirrors and adding insulation to them.
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Noticed the seat shaking when at highway speeds or when you go over bumps in the road? When my seats are empty, they shake and make an annoying rattle, shakey noise. I had them looked at by Hyundai and was told that there was nothing that Hyundai was going to do to fix them. After battling that for a while, Hyundai did reimburse me a car payment for me to "live with it" and, quite frankly, to shut me up.
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We have had had our Santa Fe for a year, done 38000 km and love it. The car will start up and drive around town fine but as soon as the engine is under load at highway speeds or driving up a hill it loses all power.
In Automatic when this happens the gear will drop back to third. You can switch it over to manual mode and slowly accelerate back up to around 80-90km/hour with your foot flat to the floor but the rpm don't get above around 2000 to 3000.
If you stop and turn the engine off for a minute or so, when you start again everything will appear to back to normal but after another minute or two the problem will be back. The engine malfunction light comes on and sometime it's flashing but at other times it's constant.
The car's been in at our local Hyundai dealer for a week but at this stage they still can't quite figure out the exact cause of the problem. The code they pulled out suggested it was the exhaust particulate filter (apparently quite an expensive part) so they replaced that but it didn't fix it. They've also replaced the fuel filter and some temperature sensors that are part of the particulate filter apparently but still no joy.
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It feels like its catching, or its off and then comes back on ?? No codes, none.
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My 2001 Buick Lesabre 3.8 loses power at highway speeds, sets a PO101 code (MAF sensor). I have replaced the MAF sensor 3 times, as well as the coolant temperature sensor, the crank position sensor, the throttle position sensor, the MAP sensor, the intake manifold gaskets (upper and lower) , the pcv valve, the egr valve, the Idle air control sensor. After cruising at highway speed for about 3 miles the car still loses power for about 20 seconds then gradually regains power only to repeat the fault again 3 or 4 miles down the road.
Otherwise the car has plenty of power quickly achieving 100+ mph going though the gears smoothly and normally. I have inspected the intake plenum and vacuum hoses for leaks and have found none, all in very good condition. The car ha 122,000 miles on it and has been well cared for, very clean under the hood with no leaks. I did reduce the egr chimney size to 3/8" while replacing the intake gaskets and that reduced the symptoms somewhat, i.e., the car only loses about 15 mph instead of dropping to about 25 mph before recovering.
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The wife and I own a 2003 Hyundai Elantra with 163k miles.
We just had our oil changed and we are currently running 5/30 and the oil light came on about a week after the change. I stopped the car immediately and checked the oil level and it was fine and oil was super clean. So I jumped back in the car and the light was off. Drove down the road about 2-3 miles and the light came back on and stayed on. Today it stayed off for a good 5-10 min while driving at highway speeds of 55-60 and then it popped on. The car runs great and it's not running hot that I know of and doesn't sputter or anything.
I was wondering if it was a bad Oil Pressure Switch? Where are they located at in the motor? I just put 1k into it with new new belts, valve cover gasket, spark plugs, wires and tires.
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I have a 2001 w/94k. New tires and alignment (3k). Recently I have been hearing a humming noise which can start to be heard around 45mph which gets increasingly loud up to 65mph, and then seems to quiet down if I go above 70mph. From the driver's seat it sounds like it's coming from the driver's side rear of the car and from the passenger seat it sounds like it's coming from the passenger side rear of the car. So it definitely sounds like it's coming from the rear of the car. Bringing my car in to get looked at it is difficult with my work schedule, so I thought I would try here first. Around the city there is no noticeable sound and there has been no loss in MPG that I can tell (44-47).
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1999 F150, 6 cyl. 4.2L, 233,000 miles. My temp gauge went way high on the interstate so I assumed I had a bad thermostat. replaced it with a genuine Ford themostat, added coolant and here's where I'm at.
1. Let it idle up to operating temp. When it was warm, the heater was blowing cold air.
2. Thermostat opened up, top radiator hose was hot and full of coolant, still no heat in cab.
3. Took it for a ride on the hwy. Heat started to work in cab, temp gauge went way up. I slowed down and went home down a side road. Temp gauge went back to normal and stayed there. Only driving about 30 mph.
I don't get why I'm overheating at 60mph. My best guess is I have some sort of obstruction in the cooling system.
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