It'll do okay when I am not flooring it, but when I do floor it there's a pretty noticeable lag and then VROM it'll take off like a bullet... This car has a manually operated throttle control, are there any adjustments I can make to make the truck more responsive? 2.4L 4Cyl....
View 3 RepliesLast night i noticed a slight hesitation during acceleration. Today i had driven around in town for awhile and did not notice any hesitation. When i got onto the interstate I pushed down the peddle to pass someone and it did nothing, I let off the gas and back on and the car bucked pretty bad. All the way home it has issues when I pressed on the gas but did fine at cruising speed. I would think a fuel filter would have been a slow progression issue so I am thinking maybe it is a sensor. I sprayed carb cleaner around vacuum hoses today and did not notice any surge so I think I eliminated a vacuum issue.
2004 Santa Fe 2.7 149k
Loving our new SF, but have noticed a problem periodically when starting out from a dead stop. When the accelerator is pushed, sometimes there is a hesitation in the engine. Almost feels like the gas has been restricted for a second, then it engages and goes. I've notified the dealer and plan to have them look into it at my first oil change, but it is happening more frequently and think it may be something I need to get looked at sooner than later.
View 61 RepliesMy 01 alero 2.4l has some hesitation at takeoff, i have changed the plugs, boots, and fuel filter, and used fuel system cleaner. What could be causing this?
View 1 RepliesI have an 01, early model, AWD Passat wagon, v6, GLX and when I accelerate from a standstill or a slower speed, the car hesitates slightly and coughs(?) and then catches on and accelerate. It doesn't actually backfire or misfire.
View 2 RepliesMy 2003 Elantra has multi spark (quad) electrodes? I have a hesitation on acceleration problem. Also feel resistance when pressing the gas pedal. I am going to change the plugs and wires. Just wondering if the type of plugs may contribute to the problem.
View 9 Replies2003 Santa Fe GLS 3.5l with 170k.
Been working OK up until about 2 months ago when I would notice a brief hesitation every once in a great while when driving. It became hard to start - would crank well but just took about 5 seconds to finally start. Recently, I was on the highway and it jerked at about 65mph but did not cut off. Once when I was at a traffic light, it shut off completely but started right back up again. I was convinced that it was a crank or cam position sensor as I had dealt with a similar issue with another car years ago. It also seems to start right away when the temps are in the single digits - when they get higher than 25 or so, hard to start again.
I bought a new crankshaft position sensor because all the posts I've read point to that being the problem given the symptoms. I haven't installed it yet - still looking into this and wondering where it is! I'm thinking that it might be more fuel-related now though because after I started my car after work yesterday (it went all day without being started) it was hard to start but this time it was if I hadn't started it in 3 weeks. It kind of sputtered until I gave it the gas enough where it would settle out. Fuel pressure regulator? I hadn't thought it would be fuel-related (pump, pressure regulator) because 99% of the time, the car works just fine.
Santa Fe - 2004 - 2.7 liter automatic fwd.
I am experiencing an occasional jerking or hesitation while sitting stopped at lights and it also has a tendency to do the same as I begin to move from a stop at times. It almost seems like the transmission slipping or something but likely more engine related I think as I am at a stop. I have felt this slightly while at speed as well but not that often, at least not yet. It also seems more noticeable as the weather get warmer as was very noticeable late last summer and did not present itself again until spring.
Also-I have read that some threads re stalling issues(not exactly what I have) that can be related to the crankshaft position sensor and also read somewhere a while ago about an issue re the ecm needing reprogramming but have not found that recently.
I just picked up a 2004 Sante Fe with 150K for my daughter. "she loves it" I love to work on cars so didn't mind the mileage. I have shifting issues so I replaced the input/output sensors, when I started driving it it was back to what seemed normal with a little hesitation between shifts, now it's back to lunging while in 3 or 4th gear. Strangely to me the shiftronic works great without issues.
View 2 RepliesI have an '02 Santa Fe GLS V6 2WD. I am having a strange problem and do not know what it could be. When car is cold, it starts up and runs with no problems. After about 15-20 mins, there is a slight hesitation or studder. RPM's drop slightly and shutters. When i accel, engine studders, then runs fine. This only happens when at idle in drive. At highway speeds there is no problem. What can this be?
View 7 RepliesI bought a 2002 santa fe last week. it was a non runner. the previous owner said he took it to the garage for a crank oil seal leak. when he went to collect the car they had removed the head saying oil was leaking from the gasket. he towed it away and i bought it. i have refitted the head. the engine runs smooth at idle. when i first start up in the morning there is a loud rattle for a second or so. it sounds like a diesel starting up. when i am driving it hesitates and seems to lose power. also at a certain position on the accelerator pedal this rattle is there. it goes away when i accelerate more.
View 12 RepliesI've been having some trouble with engine hesitation after driving for 15-20 minutes and poor MPG on my 2004 Hyundai Santa Fe 2.7L. I've been slowly running through some tests as I learn how to diagnose car troubles. I just ran a voltage test on my 4 O2 sensors using a bluetooth scan tool and the Torque Pro app. I ran the tests at idle after warming up the engine. To me, the upstream sensors seem fine but downstream sensors are not behaving like they should. Aren't the downstream sensors supposed to be relatively flat around .45 volts while the upstream sensors fluctuate steadily between .1 and .9?
B1S1:
B1S2:
B2S1:
B2S2:
My 2006 santa fe diesel 2.2 has started to be be a bit smokey when accelerating not even hard had the egr valve off today and gave it a good clean still the same it's not really bad but can see when moving off from parked...
View 2 Replies2002 Santa Fe 2.7L AWD automatic
She was on the highway this afternoon and was accelerating to merge in with traffic. Apparently the car just reved up without actually accelerating. She said it felt like she was in neutral. I've driven the car a few times over the last week and it has been running perfectly - No hesitation anywhere at any speed. There are no CELs (yet). It is probably worth mentioning that it has been raining HEAVILY here for the last 24-hours and I would not be the least bit surprised if she hit a few puddles on the way. I can just about guarantee the CPS has never been changed and am suspecting it may be a short in causing her problem.
I just bought a used 2004 3.5l automatic Santa Fe. The vibration is most noticeable from 35 - 40mph during acceleration and deceleration. It's there at higher speeds but the car doesn't physically vibrate as much.
The vibration is there with the car coasting and transmission in neutral. It's there with the car coasting and the motor off.
The tires and wheels have been swapped out with other wheels and tires. No change.
The front driveshaft U-joint has been replaced. No change.
It seems to be in the drivetrain somewhere. I would like to fix it without slowly replacing everything.
So this happens fairly regularly. only during part throttle, cruising, the acceleration and rpm will dip and fall for a second, then comes back. if i let off the gas when it happens and get back on it, it comes back sooner. about a year ago i got TPS CEL, changed the APS but it didn't fix anything.
Weird thing is, when using cruise i don't see it. at least it's not nearly as noticeable. I had some idle and misfire issues recently and found a broken coil the culprit. changed that out and fixed those issues.
What would cause this issue when using the pedal but not the cruise? I think it has something to do with the accelerator pedal sensor...i do notice the throttle cable going to the APS has a small nut on it and it looks like it can be adjusted, would that cause this issue? research says TPS doesn't fail....
When I accelerate from a stop or turn left/right with my 2006 Santa Fe, I receive a vibration which feels like a sliding motion or skidding over rough pavement. Have just recently switched my tires from winter to summer and have had them balanced and aligned twice with no change in the problem.
View 2 RepliesMy '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.
On light acceleration, it has a light stumble or surge and is very slow. On hard acceleration it makes a lot of noise, but isn't even fast enough. I can feel it shift through the gears, and can feel the converter lock up when it's supposed to. Any attempt to climb a slight hill or pass a car, it downshifts to what seems like 2 gears down, and has a loud roaring noise, but I don't feel the acceleration. At steady speed, it feels like it's hunting for a steady RPM, but can't find it.
I just had a timing belt replaced. Had the mech double check to make sure marks are correct. He did a cranking compression test and said they were all between 165-170 psi (is that a little high for a 150K mile car?). He smoke tested the intake system and found no leaks.
It does have codes stored for cat converter and a lean code-bank 1.
I will try to film the sound and post it later; but for now I have a 3.5L V6 AWD with 85k on it. i get grunting and groaning on colder mornings and sometimes a med pitched whine, more noticeable at higher speeds in town.
View 9 RepliesOk here's the situation. 2004 Santa Fe 2.7 AWD 170,000 miles.
I recently had to replace the front passenger side Drive axle. That was a piece of cake. However, since then the car has developed a shudder when it comes to stop (felt like the shudder on acceleration that was fixed by the dealer with a reflash). Suddenly it got so bad that it stalls when put into gear with the brake on. It feels like it is not coming out of converter lockup.
When I drained the fluid I replaced it with Valvoline Import multi-vehicle full synthetic (it says it is spiII). I latter added another half quart of Castrol transmax import multi-vehicle (also spIII). Did I screw up my trans? Will a flush work? Or do I just need to replace the trans and torque converter?