Santa Fe (CM - 2007-12) :: Transmission Thud When Engine Starts
Sep 15, 2014
Just had my original transmission replaced at 96000km. My new transmission has a quirk that happens from time to time when you start the vehicle there is a "thud". It varies from small to loud and only happens the second the engine starts. I have noted that it is worse when the car is parked on a hill and the parking brake is engaged before the car is put in park. My only idea is a problem the the parking mechanism or pawl as its called. The dealer won't even admit there is a problem. I've never had worse dealer service with any automaker.
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My 2011 Hyundai Santa Fe as reached 40 MPH. While driving, after slowing down then giving the car gas, it would make a very loud thud and I would be jolted forward. At times it sounded like the transmission was going to be left on the roadway. Is it common problem?
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I've been experiencing ENGINE RPM FLUCTUATION on cold starts. I took it into the dealer and they found an update available for the ECU and reprogrammed the ECU.
2009 Santa Fe ?
So far it appears to have corrected the RPM Fluctuation on a cold start... I see TSB 10-FL-010 cover this but also suggests to replace the Throttle Position Sensor which wasn't done on my vehicle.
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05 Santa Fe GLS 2.7L, auto, 2WD, 161K miles. Just bought it a couple weeks ago. Not much info about repair history, other than it appears to be well maintained inside and out.
Engine makes two kinds of noise - rattly top end noise and a low frequency thud-thud-thud.
I have shared some MP3 files on my Google Drive, but the forum blocks links for new users.
Apart from the noises, the engine starts and runs flawlessly, seems to have plenty of power (for a 2.7L, ha), and cruises at freeway speeds no problem. No tailpipe smoke or steam, whether cold or hot. Have searched the forums for this but nothing matches exactly.
I don't drive it much because I work from home, basically just around the corner to the grocery store and back. Haven't pulled the valve or timing covers yet, waiting to hear from all you Hyundai experts out there. Top end noise is one thing, but the thud really has me concerned.
Top end noise sounds like lifters not injectors - but I'm not sure I can really tell the difference, there's a lot of "sewing machine noise" going on. On cold start, it's not very noticeable, but becomes more pronounced as the the engine warms up. At operating temp it settles into a consistent rattle at idle. Seems to diminish slightly with higher RPMs, which also suggests worn/sticky lifters.
Oil looks clean and fresh. Haven't tried the Hyundai oil filter, but IMO this level of noise is well beyond the simple lifter ticking that others in the forums have described and reported cured by using the OEM filter.
I used the "long screwdriver with handle in my ear" trick to listen at various points on the heads and valve covers. At idle, it sounds like 2 or 3 lifters on the front bank that are making most of the noise, but maybe a couple on the rear bank as well, hard to get the screwdriver tip back there. Is there a particular spot where lifters can be heard best, distinct from everything else?
The low frequency thud-thud-thud is most audible when letting the throttle close after opening it up to about 2000 rpm. It can also be strongly felt through the throttle mechanism when operating it by hand. Still audible at higher RPMs, but not nearly as distinct, more of a subdued throbbing. Noise is coming from around the rear bank, about half way down the firewall. I fear it is number 3 rod, but is there anything else that would make this sound? I don't think it's a motor mount because there's no noise when putting it into gear, driving, or shifting. How can I tell for sure whether it's a rod? If it is a rod, can it be replaced without pulling the motor?
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I have a 2007 SE with 3.3L and Auto transmission. 70k miles, regular service performed.
Starting a few months back, I've noticed a low volume hum/whine coming from the engine compartment. I notice it more when I'm in drive, but also notice it to a lesser degree when in park and revving. In drive, the sound gets just a bit louder and higher pitch, until shifts, then lowers at low RPM, growing again as revs move up.
since it happens in park, I'm thinking it is engine related, not transmission? (I usually change oil around 4k, sometimes as high as 5k)...
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When I start the car for the first time of the day, the shifting is not as smooth as when the engine is hot. Is this normal ? When I checked the trans fluid, it was between 25 and 75...(the second little mark on the dipstick) but I just drove about 5min so maybe the engine wasn't warm enough..
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1994 f150. When i use the max a/c setting, sometimes after a few minutes I hear a little thud and then all the air starts coming out of the defrost vents. This doesn't happen when using the regular a/c setting.
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When I drive my 2010 santa fe. I get a noise that sounds like i have a flat tire in the back. It is intermittent and starts at any speeds. But when you stop the vehicle and start again the noise is gone. The mechanics at Hyundai replace replace a part for the all wheel drive but that did not fix the problem.
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07 That has 138K miles. The noise starts around 10 minutes of driving. Th engine sounds like a diesel engine. The noise has lasted 5 to 10 minutes. Then shut it off and it won't return til the next morning...Same thing. THIS DOES NOT SEEM TO OCCUR on start-up. It has to run for about 10 minutes (moving) or so. Changed out the water pump. The noise is coming from near or behind the water pump.
My mechanic is stumped but he pretty much thinks it's coming from behind the water pump. That leads me to believe it's the timing chains/tensioner's etc. But the time it starts up is throwing me off. When it is cold I think I can hear a little clacking that shuts off quickly after oil pressure gets going but it's not really the same sound that were are hearing when moving and the crazy sound starts and it is LOUD!
We were thinking it was the timing belt tensioner however, it is not behaving like it should.
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While driving my 2001 F350 7.3 today running errands it started to have a real concerning issue. Once I slowed down back into my neighborhood it would make a thud, then feel like someone was pushing the brakes (even when i gave it gas). Then it would thud again and drive normal. I'm worried its the transmission getting ready to go. Any input?
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Alright, been tuned for a few months now, APR stage I. When I turn off ESP and make a quick acceleration from stop sometimes I hear a loud thud from under the car when the car changes from 1st to 2nd gear, like someones hitting as hard as they can with a mallet. It only seems to happen when I have ESP turned off though. Any thoughts? It sounds like its horrible for my transmission, its probably happened 3 times in the last couple weeks but now I'm afraid to peel out fast in my car because of possible damage to the transmission. Could it be the valve body that's in recall? Or some other issue?
Guess its pertinent to mention, 06 2.0T with Triptonic and 72k miles.
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When I come to a stop in S mode theres sometimes a noticeable thud as the transmission shifts down. Is this something I should be concerned about or want to try to fix?
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I have a 2007 Santa Fe GLS AWD that has a rear driver side tire problem. It starts after roughly 10 minutes of driving as a slight squeal. It starts at around 20mph and will quit when I reach 40mph. The longer I drive, the louder it gets to a point where it is almost constant between 20-40mph. It stops when I apply the brakes or when I turn slightly to the left or right. Also, if I stop and turn the car off it takes 5-10 minutes for the squealing to start again. There is a smell of hot metal and sweet smell coming from the area.
I had the rear brakes and rotors replaced 12,000 miles ago, and them checked at my local Hyundai dealer when I first noticed the squeal and the mechanic said the brakes and rotors in the rear did not need replacing. What it could be?
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Upshifting is fine, downshifting gives me a big thud. Bigger from 3rd-2nd smaller 2nd-1st (I think).
2006 GS430. 120k or so miles.
Dealership replaced solenoid #2, but now say I need a whole new transmission.
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So I just purchased an 07 gs350 104,000miles. Drove fine during test drive. Got it home (private party) and so far 3 times in 2 days, pulling away from a stop light throttle. Car moves forward but transmission slips to about 2000rpm and then a thud- as it re-engauges into I think first gear. Engine coolant was low (heater did not work), so I refilled. Did not overheat according to gauge. Tried resetting battery. Cannot see any sort of leak under car.
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When I am going into or downshifting to second gear in my GLI it makes a thud sound after I let out the clutch. It doesn't always happen and it does it if I just throw it down and if I don't have a perfect rev match. It just started a few days ago.
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My beloved Hyundai Santa Fe,2006 model's engine light came up. The engine starts and than about 10 seconds after cuts out straight away. What to do. I have always taken care of this car and being serviced well.
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I have a 2002 Mercury Mountaineer with 150K+ miles on it. Lately the transmission seems "rough" as in it seems to 'thud' randomly when I step on the gas while cruising. I think it's trying to change gears, but I'm not sure. It runs okay, but I feel like I should start thinking about rebuilding the transmission. I have access to a full set of tools and mechanics on hand and about a weeks worth of time. Think I can do it?
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My 2010 Santa Fe's transmission has been smooth since the TCM update except there's always a clicking sound when the speed first reaches 30 km/h. The sound only happens once during each trip. It seems like it only happens when the fluid is cold. Once it's warmed up, it's fine.
Yesterday all of sudden I feel something is dragging my car. I noticed RPM is over 2000 when the speed is only about 60 km/h. (not mile). And the ECHO light is not ON. So I shift to '+/-' mode and the display shows 4. I guess it means it's in 4th gear. I shift up to 5th gear and RPM drops right away. ECHO light comes back ON. So is this a symptom of 2010 Santa Fe transmission?
I also feel my brake pedal is very stiff when this happens. And the brake pedal has not much travel distance. If the brakes are dragging car down, can this cause the transmission stuck at low gear?
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I just bought a 2010 Santa Fe. All seems fine except that when the car is cold it goes into R harshly (with a bump and a small delay)and also is a little bit irregular in normal gear. I'm used to have cars with transmission problems unfortunately and happily it's nothing like that but I'd really finally like to have a vehicle without any tranny issues.
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Finding a solution to my problem with Santa Fe, the gear gets stuck up on the 3rd gear. I have changed all the solenoid and it is still the same.
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