Santa FE SM (2001-06) :: 2004 2.7L V6 GLS - Vibration At Highway Speed And Idle

I have a 2004 2.7L V6 GLS Hyundai Santa Fe AWD that I purchased about a year ago. The car has about 114,000 miles on it I believe. My problem is that I have an annoying vibration at idle and at highway speeds of 60-65 mph. The vibration decreases somewhat towards 70 mph. The vibration at idle is usually present, but sometimes vanishes for no apparent reason. The car is very smooth below 55 mph, but when around 60-65 mph becomes quite violent at times. The side view mirrors shake very badly and the vibration can become tiresome.

Originally the shop believed that the front axles were the culprit and replaced them – this mitigated some vibration felt through the steering wheel, but not much of the vibration throughout the cabin. The wheels have been balanced 3 times, alignment checked, and wheels do not seem to be bent/dented. (The tires were road force balanced)

In addition I have also had the following work done:

-2 oxygen sensors replaced (both post-catalytic converter)
- 2 Catalytic converters (replaced to pass emissions)
-Timing Belt Replaced
-Serpentine Belt Replaced
-Idler Pulley and Auto-Tensioner Replaced
-Ignition Coils Replaced
-Spark Plugs Replaced
-Transmission Fluid Change
-Oil Changes
-1 Tire Replaced (Sidewall Blew Out) (Michelin LTX M/S2 Tire)
-Air Filter Changed
-Crankshaft Position Sensor Replaced (It was Corroded Away)

Why the car is vibrating so that the mechanics can check it out. One idea I have could be the engine mounts – this would explain the vibration at idle (in park). I drive about 10 hours a week on the highway at the speeds that cause this vibration.

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Santa FE SM (2001-06) :: Engine Running Rough At Idle / High RPM And Appears To Be Misfiring

Recently replaced plugs/wires on soon-to-be 10 year old '04 SF 3.5L (157K mi.) for the first time.

Plugs were OE Champion Platinum and all 6 looked identical except for excessive gap of .010 +/- due to all the miles. Replaced plugs with same as OE. Old plug wires looked good, but replaced them with aftermarket wires ( fit was as good as OE). Also replaced plenum gasket.

Problem is: engine runs rough at idle and high rpm and appears to be mis-firing. CEL is off and code reader shows no Trouble Codes stored.

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Santa FE SM (2001-06) :: Blower Only Working On High Speed

Blower only works on high speed. From what I have read the problem is either the switch or the motor resistor. I am leaning toward the resistor which is behind the glove box. Where can I find directions for removing the Glove box?

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Tacoma :: 2.7 EFI Engine Has High Idle Speed

1995 Tacoma with 2.7 EFI engine has high idle speed. When cranked cold idles at 800 rpm but as it warms up idle speed increases up around 1600 rpm. Does not idle down when clutch is fanned, have checked for vacuum leaks and have also checked most sensors. The exhaust manifold is cracked and I am not sure if this might be part of the problem. I am not convinced issue is not vacuum related but not sure of a definite way to resolve this question or issue.

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Prius (2004-09) :: High Mpg (km Per Liter) At Idle Speed

I am a new buyer' bought my prius 2008 about a week ago. the is something i cant understand, when a the engine runs at idle speed, the fuel consumption monitor shows 99.9 km/liter ! ! ! and it's also calculated at the average... is it something i should worry about ?

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Santa FE SM (2001-06) :: Surging Upon Startup And High Idle RPMS - TPS Replaced

2004 Santa Fe .... 2.7 6 Cyl 4WD 150k miles

Recently I started experiencing RPMs surging upon startup and driving before my engine warms up. The problem has gotten worse to where I push on the accelerator the RPMs jump to 2700 and the transmission feels like it disengages. My initial thought was the tranny was going bad and slipping. I checked the fluid level in the T and found it was maybe a half Qt. low. I topped it off, but this had no impact on the problem. On a side note, I am able to use the manual shifting feature on the "His and Hers" Shifter and drive the vehicle without any issue. Transmission works fine in manual. The surging RPMs which only occur in Automatic mode, triggered the CEL and I got a code of P0123 which is high side voltage on the Throttle Position Sensor. I replaced the gray TPS with a new black one.

Upon startup the RPMS jumped to 3000 just sitting in Park. I disassembled and reinstalled figuring I had something bound in the throttle. After reassembly the idle went up to 2200, still no good! I reinstalled the original gray TPS and the RPMs, upon starting, RPMs were 1500 with the old sensor...still too high. I did reset the ECU twice during the process of putting in the new sensor and reinstalling the old sensor. Right now I found that when I disconnect the TPS electrical connector, the engine runs normal. It starts right up with the TPS totally disconnected and idles at 750 RPMs! It will not shift to 2nd gear though, when I try to drive it in Automatic Mode. I can however drive in Manual Mode and drive normal and shift right through the gears. Who needs automatic mode right?!!!

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Prius (2010-12) :: High Engine Idle Speed - 2500 RPMs

Had a first-time issue with my car today. Background, 2010 II bought in June, just short of 15K miles, never had any kind of mechanical issue.

While en route to work this morning, I was about halfway into my 15 minute drive to work, when I noticed my engine was idling very high, I would guess 2500 rpms. It started doing it while I was driving around 35 MPH, then continued doing it while I stopped at a traffic light, and continued when I continued driving to a speed around 50 MPH. The high idle while stopped was not transferred to the wheels, so it was not a safety issue as it would be in other cars.

When I got back up to 50, curious to try something, I hit the ECO mode button and the car returned to normal. I took ECO back off and the car was still fine. I had no further problems.

I would point out that this morning was about the coldest temp that the car has experienced. Outside temp ranged from 7 to 10 degrees.

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Geo - Prizm :: 1993 - Intermittent Push To Start / Engine Idle Speed Too High At Times

1993 Geo Prizm, manual transmission: Intermittent failure to start over a two year period, gradually becoming more frequent. The engine turns over every time the key is turned to start the engine, i.e. the starter motor/battery/battery connections work flawlessly. Once started the engine runs flawlessly without misses or shut downs. The only possible problem may be the engine idle speed that seems at times to be too high even after the engine is warmed up. Without predictability, the engine may fail to start when the key is turned.

Remember the engine still turns over normally. It just does not fire up. Two options exist for my predicament. That which is resorted to the most because of the speed of recovery: step out of the vehicle and push start the car by popping the clutch. The other alternative which I have been forced to utilize before because of the physical impossibility of push starting (i.e. if I had been able to push, I would have popped the clutch to start) at the time has been to wait for a protracted period and re-attempt to key start the car. This has been successful a couple of times.

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Santa FE SM (2001-06) :: 2004 2.7L AWD - Vibration At Highway Speed

I bought a 2004 Hyundai Santa Fe 2.7L AWD about 5-6 months ago. It has close to 120,000 miles and has a terrible vibration at highway speeds. It starts around 55-60mph and gets increasingly worse as speed increases. The steering wheel originally vibrated quite violently, but after changing the "front axles" it resolved only the vibration in the steering wheel

I took it to a local shop we trust, they changed the "front axles", all spark plugs, ignition coils, timing belt, transmission fluid change, and a o2 sensor.

I changed out a serpentine belt, tensioner, and idler pulley (due to a squeak), another o2 sensor, and tried to change the transfer case + rear differentials fluid. I couldn't change them because the fill plug was very stuck... we used a propane torch and a large socket wrench.

Anyways, after the front axles were replaced, the steering wheel got significantly better, there is however some vibration through it. After they were replaced it did not fix the vibration shaking the whole car. I've noticed that when you let your foot off the accelerator all the way, the vibration stops. When you step on the accelerator again it starts shaking very bad, and then begins to get slightly better. The vibration has a rhythmic timing to it. It seems like it pulsates stronger, then softer every 1/2 second or so

Also I have had the wheels balanced 3 times. I doubt it's the tires, unless a tire is out of round. My rotors also do not seem to be warped. When I brake, there is no shaking/shimmying. I was wondering if it could be the engine mounts? This vibration is very annoying, since I have to drive long trips sometimes. Other than this problem I like this car and would love to see it fixed.

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Elantra XD (2001-06) :: 2004 - AC Only Works At Idle And Low Speed?

As the title says the 2004 Elantra only has a/c at idle and low speed. It started with the a/c stopping, and a mechanic gave me as story about the wiring going to the compressor being faulty. He jumped a wire from the drivers side fan to the compressor. It turned on the compressor and I had cold air again. or so i thought.

Now, it's cold at idle or slow around town stuff, but as soon as I get on the highway it stops working and blows outside temp air. Is it the compressor? If not, I wondered if the fan (drivers side) is turning at highway speeds and not back on till I stop.

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Santa FE SM (2001-06) :: 2004 - High RPM In Park And Neutral

I'm having trouble diagnosing a high RPM in park and neutral on my 2004 Santa FE 4WD 2.7L. Idle's great in drive and reverse. Occasionally when I start the car up it will shoot up to 3000 RPM until I shift into drive or reverse with a heavy thunk. Then it drives fine. When I shift back into park when I'm done driving, it will shoot back up. To avoid this, I just shut the car off in drive and then shift to park.The weird thing is, sometimes it doesn't happen at all. Sometimes it starts right up and shuts down with perfect idle. However, once I give it some throttle in park in these instances, the idle will jump back and forth between 1500 and 2000 and won't die back down to 800 where it should be until I shift into drive or reverse. Not sure what's going on.

I've replaced the idle air control valve, purge valve solenoid, and camshaft position sensor, but to no avail. I also replaced the throttle position sensor a few weeks ago, but that didn't seem to do anything, so I took it back. I'm wondering if I maybe didn't do the correct installation procedure. I still have the old grey TPS for what it's worth. Should I change this? I've also played with the tension in the throttle cable, but I don't really know how to get it exactly within specifications. I definitely removed some slack. I just checked for vacuum leaks using the cigar method with a hose from the PCV valve with the throttle body sealed with saran wrap, but I couldn't find anything. My method was shoddy, and I don't really know what I'm doing, so I wouldn't rule out a vacuum leak by any means.

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Santa FE SM (2001-06) :: 2004 - RPMs Running High / Car Seems To Surge

2004 Santa fe. Having issues with RPM running high. When car is started, RPM sits at 1500 for a few mins, then drops to 500. Seems to be having issues either getting into gear or staying. At any mph, car seems to surge and not feel like it's getting either gas or power. While on cruise at 55+ mph, car will also surge with RPM dropping 500, then kicking back in. This goes on every few seconds up to random times.

Had it looked at this past weekend at a dealer, and of course it didn't do it one time, after doing it for a half hour prior on the interstate. Tech found no error codes when he checked it as well. Car was fine for an additional 300 miles, then it started again out of the blue. Pulled out at a red light and I though I was going to stall.

Just got laid off so I'm trying to eliminate before putting a lot of money into it if I don't have to. 132,000 miles.

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Santa FE SM (2001-06) :: Engine Started Idling Very High / 2500 RPM At Startup

I have a 2001 Santa Fe that I am getting road ready for my son, The engine has recently started idling very high, 2500 RPM at startup. I disconnected the IAC servo and it drops right down to about 900 RPM. I replaced the IAC with a brand new one and it does the same thing at startup, 2500+ RPM. Checked vacuum hoses / tubes. I replaced 2 crack / dry vacuum hoses. Same problem for a while, then idle went down to about 1250. Started to drive it, test ride. while accelerating, seems OK as soon as I take my foot off of the gas, idle goes to 2500 - 3000 RPM until I apply brakes and then it drops back down to 1000 or so. (SOUNDS LIKE A VACUUM LEAK PROBLEM. I CANT FIND IT, IVE BEEN THROUGH 2 CANS OF CARB CLEANER AND HOURS OF REPLACING ALL VACUUM HOSES.)

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Santa FE SM (2001-06) :: 2004 - Starts But Won't Idle

We just replaced the starter on a 2004 Hyundai Santa fe 3.5. The car now starts, but won't idle. I can keep my foot on the gas and keep it running, but as soon as I let my foot off the gas it dies. We didn't have this problem before replacing the starter. Where to start looking?

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Santa FE SM (2001-06) :: Error Code U0D00 - Engine Will Rev Really High When Moving After Stop

I got an Error Code of U0D00. What this is or means. The scan tool says to refer to your manual but I don't have one.

What the vehicle is doing is that it will work fine for a while then when you stop (in park) the engine will rev really high and back down all by it self for example. It will go up to 3.5 and back to 1 rpm repeated. Then when you start moving the car it will continue to idle higher like you are pressing the gas. During all of this the check engine light will appear?

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Santa FE SM (2001-06) :: Code P0320 - Ignition / Distributor Engine Speed Input Circuit Malfunction

I have a 2003 Santa Fe, V4, 2.4L.

So the other day, my CEL and I got it scanned: p0320, or "Ignition/Distributor Engine Speed Input Circuit Malfunction."

It was accompanied with two symptoms:

1. The car will sometimes sputter on startup, and the tachometer will be zeroed out. I have to turn the car off and turn it back on, and it will start normally, albeit with a bit of a misfire on idle.

2. The car will sometimes die while at a stop. Just like the first symptom, if I turn the car off and turn it back on, it will work normally.

I looked on here, and it seemed like everyone solved a p0320 by replacing the Ignition Failure Sensor. So that's exactly what I did. But nothing changed; I still have the symptoms, and the CEL came back on and is still reading p0320.

What should be my next step? Could it be faulty wires that give power to the Ignition Failure Sensor?

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Santa FE SM (2001-06) :: Engine Stalling / Idle Very Low - Code P0102

Trying to get my daughters Santa Fe going. Engine stalling. Idles very slow. 2001 model with 2.4 engine, auto trans.

Code P0102 is active. Cleared with scan tool and it comes right back.
Replaced the MAF and no change.
Checked the intake for leaks / vacuum leaks and none found.
Checked for debris up-stream from MAF and all is clear.
Air filter is clean and dry.
Checked harness plug and found the pin 5 has 4.6 volts on it from PCM. This is the signal wire from MAF to PCM. 4.6 volts is KOEO.

IS THIS NORMAL OR IS PCM BAD ??? All other pins / voltages on harness plug are normal.

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Santa FE SM (2001-06) :: Code P0118 - Engine Coolant Temperature Circuit High Input

I went to my local Autozone today to have a code read and get the freeze frame data. I got a code P0118, Engine Coolant Temperature Circuit High Input. I called the dealer but they are out of stock on the sensor. Would it be a problem to use an after market sensor? I'm just concerned about the quality and accuracy of the sensor.

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Santa FE SM (2001-06) :: Code P0118 - Engine Coolant Temperature Circuit High Input

Engine light is one for about a month and finally got an ODB II.

Today it reads the error code [b]P0118 which is [b]Engine Coolant Temperature Circuit High Input

The coolant sensor reads 45 C when the key is on "on" position at about 2:30 pm this afternoon and I start the engine about 2 mins the temp jumps to 68 C, are these some logical number?

Does it mean the bad temperature sensor and I need to replace it?

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