i have just replaced the clutch in my 2002 santa fe all went well but on the test drive i noticed the revs jumping up and down while idling at a set off lights . it was not in gear and the clutch was out. Have checked all hoses and connections. problem still there.
View 1 RepliesI have a 2004 SF/2.4 I4. When the car warms up, the ignition coil sparks between the rubber boot and the coil itself, drawing the spark from the plug and resulting in a misfire. This is especially apparent when the A/C is running and the car is idle-ing, resulting in the A/C turning off and a rough jumping idle. Once the car is running this is not noticeable and the A/C turns on.
I have changed the spark plugs to new autolite plugs, and the situation disappeared for a day, but now it is back. I ordered OEM NGK Laser Iridium plugs, I hope they will fix the situation. Why would the A/C matter? Next on the list will be the ignition coil and wire change, but I hope to avoid that.
05 Santa Fe, 2.7 liter, 71,000 miles
Prior to today it had revved high, up to 3000 RPM, once or twice upon start-up but then settled down once I started driving it with no issues at stop lights.
Today, however, no issues upon start-up but within 1 mile it started acting badly. Pulls strong under load, i.e, accelerating. Once cruising speed is achieved and the right foot is relaxed, it loses power, slows and bucks.
At stop lights revs are down to below 800 while in drive and is slow out of the gate. When put in neutral at stop lights, it revs to 3000 then falls to 2000 then back up to 3000. It does not stall.
Replaced the IAC and it ran fine in park for exactly 2 minutes then began revving again.
Daughter's 2001 Santa Fe Delta V-6 2.5 engine, needed lower ball joints. Replaced the entire lower arms as more cost effective & actually a bit less work, for me anyway.
So While under it, see oil dripping down back of engine. Decided to replace valve cover gaskets. So I start to disconnect all the involved connectors, brackets etc to pull the Upper air intake to get to the rear cover.
While moving around, find most of the hoses & vac lines baked brittle and dried out and loose even tho clamped, so I replace all of those, plus the PCV valve., & the upper & lower radiator hoses as well. I only removed the upper 1/2 of the intake. I change out the cover gaskets, reassemble every thing, reconnect all the connectors. I noticed that some of the connectors could apparently be switched to other sensors, but since all the lines seemed so backed solid, they actually retained their positions to go back onto the proper sensors.(at least I hoped so & it seemed that way).
Anyway, every thing back together & tightened up, so I start it up & the idle is at about 3000 to 3400 RPMs. WTF? So I pop the throttle a couple of times by hand and finally it drops down to normal, then just as suddenly, it begins SEARCHING for lack of a better word, and starts racing upto 2600 rpm then drops to 1200 then up again then down again.
No check engine light or other idiot lights on. So I shut it down & check all the connections and hoses, nothing disconnected or left off or loose. I start it again, and it immediately begins running high & low searching for the idle again.
I shut it down again, and put the MacPro scanner on it and NO codes either set or pending. I next check the Haynes Manual I have for it, & the closest thing I can find to my problem says: Engine Lopes while idling or idles erratically 1) Vac leak 2) Leaking EGR 3)Air filt clogged 4) Fuel pump not delivering enough fuel 5) Leaking head gasket 6) Timing belt/sprockets worn 7) Camshaft lobes worn
By process of elimination, not #'s 2) According to service manual, there is no EGR valve on the 2.7, and I couldn't find one either, #3) Air Filter is new & clean, #4) ran fine before I worked on it & with the engine revving up to 34 or 3600 rpms, getting plenty of fuel, #5) Have had many head gasket problems over the years on many vehicles, never anything like this, and again, it ran fine until I worked on it #6 & 7) Doesn't seem to me to be a belt sprocket or cam shaft problem, as none of that was touched & again, it ran fine until I worked on it. This kind of narrows it down to #1, for me, but this is not like any vacuum leak I have ever come across in 45 years of auto repair. I have found & fixed many stumbling idles due to minor leaks but never had anything like this.
I next called a friend who owned an automotive machine shop & who I used to do work for, and now runs a highway dept garage for a municipality who has been a certified mechanic for many years, told him all the above & the only thing he could come up with was a MAJOR vacuum leak, like possibly the upper plenum gasket rolled up or got torn some how when I replaced the plenum and he suggested that I try a smoke test.
Scratching my head, I go back to the car, & break out my home made smoke machine that I use to successfully pinpoint leaks in emissions systems. I ran it for quite awhile, and found some light smoke leaking from somewhere down around the head, but due to the construction of the engine & no way to get the light to shine under the plenum, could only guess that he may have been right & that there may be a large leak down at the lower intake manifold to head gasket. Needless to say, I removed the upper plenum again, & this time also the manifold to heads, and the gaskets looked like they may possibly have leaked slightly between the ports, & quite possibly somewhere around the number 6 cylinder. So I cleaned the surfaces & am putting on the new gaskets that came in the set with the upper plenum to manifold gasket set.
My questions after relating all of this:
1) The 2 gaskets between the manifold & the cylinder heads have a blue stripe around all 3 cylinder port holes (appears to be some kind of sealant or factory applied silicone bead) & there are no markings of any kind anywhere on the gaskets, so do the blue stripes face DOWN to the heads or UP to the bottom of the intake manifold ?
2) Regardless of which way these stripes face, should I use any kind of high temp sealant around the port holes in addition to the gaskets, or just install them dry ?
3) Can the Idle Air Control on the Throttle Body Fail & affect the idle like the problem I am having, but NOT set a computer code ?
4) Can the Throttle Position Sensor affect the idle like this and NOT set a computer code?
5) I also found an electronic valve between the Air Intake & firewall, it is labeled PCV and has an OEM part number after that, I believe this to be the Purge Control Valve, which connects the TB to a plastic line which I believe runs down to the emissions canister under the vehicles front seats. Am I correct in thinking that even if this part had failed, it would have NOTHING to do with my erratic Idle problem, but would throw an emissions computer code?
My Honda Fit has had this problem for over a year; I've brought it in to multiple shops and they couldn't replicate it. I first thought it only was happening when the a/c was on, but now that it's winter, and the heat is on, it seems to be occurring all the time. The car will "jump" (bump?) when idling, and will now (newly) do the same thing while driving. I can't identify what it might be and when I bring it to the shop, it decides not to do it when they test drive.
View 5 Replies2003 2.4 base Santa Fe with 167k miles. It's having an intermittent stumble while idling and at take off once the engine is hot. I have replaced the plugs, coil pack, IAC, intake and cleaned MAF as well as replaced the PCV valve. Also checked and no vacuum hoses are misplaced or missing.
After some reading it appears it may be the EGR? I ordered it to replace just because I'm running out of things to try to replace without going to a shop.
My 2001 Hyundai Santa Fe has recently started idling very high when put in park or neutral. While in drive the engine idles above 1K and you need to keep your foot on the brake to keep from moving forward. If you shut down the vehicle while idling high, the car will not start right away. It needs to cool down for 10 -15 minutes before restarting. It will run fine for awhile but will go back to revving up again.
View 7 Replies2002 santafe 4x4 v6. about week earlier I had a cel for temp sensor voltage high. so I replaced it. then... my power steering cooling loop by radiator started to leak from corrosion and for some reason my coolant gauge was reading about a needle with from the red. (maybe from getting ps fluid on it? idk) so I went to investigate why it was leaking and I thought the cooling loop pluged into a cooler on radiator so I removed my lower front engine mound and motor mount by the timing belt so I could raise engine up a2" to get a better look. when I saw it was just a loop and that was my leak I ordered replacement. It came in I swapped it out. Pretty easy . Decided to do a radiator flush and replace thermostat. Why I was at it. I drained radiator and took the old thermostat out. was gonna leave it out for the flush to cycle better. When I started it up it was idling around 4k rpms. I figured it might be because of thermostat so I put the new one in.
Started it up and same thing.... I check all the vac lines I could find all were tight. I unplugged them one at a time at throttle body/intake tube and blocked it off with my finger and it was still idling high. It also started surging. going from 2k to 4k and going back and forth. I checked the maf and it was clean as a whistle. No leaks on intake pipe. If I put my hand over maf it sucks the tube towards the throttle body. no air leaks anywhere. Took off iac valve its clean. I plugged the holes where it is on tb and started it up and no change in what its doing. also the throttle body flap is closed the hole time. Iac seems to be properly opening and closing. when I watched it after I unbolted it. I sprayed brake cleaner all over manifold to check for air leaks no change in high idle. I also took off the evap valve hose to tb and plugged it at tbody and no success.
I checked my sensor connectors and there tight and no wires are pulled out. I have yet to check cam sensor connection. (does it have a cam sensor?) I unplugged battery over night. this morning it ran at 2k rpm for two mins then surged to 4k. could it be my throttle position sensor? is there a way I can check with multi meter? Ive done a lot of research and it seems like a common problem with Hyundai but people don't leave a what fixed it post after they figure it out. they just leave the threads hanging. I hope I can figure this out.
When I get home tonight Ill plug where the brake booster vac line goes in. I looked at the hose and it was super tight and didn't seem to be leaking but maybe booster is idk. Ill also check wires to all 02 sensors. but if o2 sensor wire was broke wouldn't it throw a cel? Also no check engine light. but id did have an abs light come on the other day. was thinking maybe an abs sensor at the wheel but I am not sure. That light was on for a week before this issue started. It was never revving up until I started working on the other issues from my research I am guessing throttle position sensor. I am going to multimeter it tonight.
2004 Santa Fe 3.5 has started idling rough when in park or when stopped and in drive. When I'm actually driving, it runs smooth and doesn't seem to have any issues or hesitation. I tested my EGR valve with a vacuum pump and it held 7Hg of vacuum and did not leak. I think that indicates it is working still?
I think my issue may be the EGR Solenoid, but I'm not sure how to test it. When I remove the Green hose from the Throttle Body, there is a good vacuum coming from it and my car speeds the idle up and seems to run smoother. I think that means there's some kind of blockage? When I have the Solenoid off, you can blow through it, which I think means it is open.
I think I have to replace the Solenoid, but didn't want to just buy parts.
I just got a used Hyundai Santa Fe (2004). I was so excited until about 50 miles of driving it. Here is what happened:
I was idling at about 20 mph when all of a sudden the engine jumped (a little bit) - the RPM went down to 0 and the check engine light came on. I pulled to the side of the road and put it in park - then the car went back to normal like nothing happened, it didnt stall all the way. I was concerned and took it back to the dealership and they did a diagnostic test on it and it came back negative, nothing was wrong with it.
My boyfriend was driving up north with it and it happened to him, this time, it stalled. He said that the engine jumps a bit- but all of the lights go on on the dash. I remember it smelling pretty hot when I opened the hood before with it happened the first time, so I asked him to open the hood. He said it did smell hot. He checked the coolant and it was empty. It looks like there is fluid in it from the outside, but that was just the line that previous fluids had. He put coolant in (not in the actual radiator, but in the place where coolant goes) and it still stalled. I didn't want him to drive it anymore for fear of something worse happening, so there it sits.
Is this something that happens with most cars, or this kind of car? I am kicking myself for not purchasing the extended warranty, but I didn't have the extra cash to add over 1k to the price. Could it be just the coolant needing to go into the radiator? Do Santa Fe's typically shut down before they overheat? I was doing some research and it seems that cars stall because of either the fuel system or electrical system.
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.)
View 2 RepliesWould bad harmonic dampener cause vibration when in park or when in gear but idling? Highway speeds no vibration..
View 2 Replies2004 2.4L 4cylinder manual transmission. I had a knock sensor code and replaced it. Then I had a code for the TPS and I replaced it with the new part today and after replacement the vehicle idles at 2000 RPM. what should I change?
View 5 RepliesMy 2008, standard transmission, Honda Element just turned over 100,000 miles recently. Over a year ago the engine started making a "hurrr hurrr hurrr hurrr hurrr" noise and shaking the whole car while I'm sitting at a light or stop sign without touching the gas pedal. If I turn the air on it will stop, but starts up again if I turn the air back off. It doesn't do it all the time, and of course didn't do it when I took it to a mechanic to have it checked out in June. They hooked it up to check for engine codes, and got nothing, so they weren't really sure what to fix since they couldn't make the engine do what I was describing. They did bring a whining noise the engine is making to my attention, and suggested replacing the alternator and 2 associated belts in the engine. While they were in there fixing things, they noticed the lubrication looked contaminated - like water had somehow gotten inside - but couldn't say how.
Unfortunately, my car is pretty much right where it was before visiting the mechanic - only now I notice the constant whining that gets louder when I press the gas pedal, as well as the occasional shaking and "hurrr hurrr hurrr hurrr hurrr." People who ride with me notice the whining too, and whenever the engine starts shaking they think I should have it looked at. to which I reply, "yes, I have. fat lot of good it did me."
Toyota Corolla 93, manual transmission so there was a problem with idling, while it idles, the engine revs up but im not pressing the gas pedal at all. found out it the vacuum hose was broken. we fix it, buy a new one and now the engine dies out. change the air filter. The car still dies out. so the car either dies out or bad idling. what do i do?
View 5 RepliesI have a 2008 HYUNDAI SANTA FE 2.2 CRTD CDX MANUAL. It jumps when reversing, especially when turning in reverse. Is this normal or is there a fault?
View 4 RepliesSo I have a 95 Legacy sedan, FWD. It's been a kind of problematic car, and the engine was replaced about 5 years ago (I assume with an old unit, but I'm not sure though because though I was in the family I wasn't driving it then). But, it's held up and has continued to be at least roadworthy. But recently, it's developed an issue where the engine will just randomly die while I'm on the road. All/most of the dash indicator lights come on, but if I shift it into neutral and turn the key, it'll come right back up. Occasionally it'll die again almost immediately, but usually it'll be fine for at least a while. And anecdotally, It seems to happen more frequently at lower revs such as idling at a red light (though will occasionally happen while I'm moving), and when the engine is cold - generally once I've driven around for a while, it's not a problem anymore.
View 3 RepliesRecently I had a battery replacement and a wheel barring replaced. Once I picked up my car the speedometer started jumping. I took it back into the Sears auto place that did the work. They checked it out and then told me this was an electrical thing and that they weren't at fault. After about another day the 'check engine light' came on.
I recently moved so looked up an actual garage in TN that had good reviews and took the car in. They hooked it up to a computer and told me the speed sensor chip was bad. Since the car is a manual they said that it was ok to drive it but they wouldn't recommend that for too long while I saved money. I have seen lots of posts online about doing this yourself. I by NO means am a car person but I have seen that you can buy the speed sensor part pretty cheap online.
My questions are: Is the garage charging me an arm and a leg? Would it be a recommendation to buy the part online and then take it in to be fixed? And if so how do I know which ones are ok for my 2001 Honda accord?
I have been reading alot about the speedo needle that jumps on the 2002 elantra gls while driving. My speedo is doing the same thing and I have been told it could be the VSS , the auto trans sensor, the vss sending unit. speedo gauge etc. Which sensor to start with or how to test ? I assume they are on the tranny cover which I have not looked at yet.
View 5 RepliesI own a 2010 AWD Santa Fe. It gets factory scheduled maintenance at the dealership. Since owning ( i bought it used from Dealer, it was driven by dealer) it has periodically revved while driving. Often at lower speeds while accelerating from a stop. The engine will rev and the car will act as if it is in neutral. Then, after a few seconds there will be a sharp jerk as the transmission(?) engages and the car lurches forward. My dealer told me it is normal. This does not seem normal.
View 1 RepliesOver the last few months I've noticed that there was a small 'Jerk' from the car when pulling away at low revs. It seemed to happen around 1200 RPM/20 MPH put only when pulling away very gently. It has been getting worse in the past two weeks. The car needs a service and I was going to get the fault looked at when in for service. Last night the 'ESP OFF' and the 4WD fault indicator came on (4WD lamp flashing). Since the fault lamps have illuminated, the car has stopped 'Jerking'.
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