- #1939 of 1990
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Sorento '03 engine problem
by alexisb
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Mar 09, 2009 (6:45 pm)
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My '03 has approx. 758000 miles on it and today I felt a slight change in the way it drive. I noticed that whenever i pressed the gas, or even floored it, the RPM wouldn't go higher than 3,000. I let my engine cool down and tired it a few hours later, i floored it and it slowly creeped up to 4,000 rpms, i hit 60 mph before it cleared 4,000rpms even. then when i let go of the gas, the pointer dropped down all the way to 1,000 then creep up to 2,000, without me pressing anything. It also feels like my car is struggling to pull itself, as if it's gotten heavier...someone who knows about cars said it could be the mass air flow sensor...i'm not sure though, anyone else have this issue?
Also, I am the second owner, does the warranty carry over to me?
Thanks! 
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- #1940 of 1990
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Re: Sorento '03 engine problem [alexisb]
by tidester HOST
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Mar 09, 2009 (8:33 pm)
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Replying to: alexisb (Mar 09, 2009 6:45 pm)
My '03 has approx. 758000 miles on it...
I don't think any warranty covers that much mileage but I'm pretty sure you put an extra 0 onto that! 
A defective MAF sensor would produce the symptoms you described.
tidester, host
SUVs and Smart Shopper
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- #1941 of 1990
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Re: Sorento '03 engine problem [tidester]
by alexisb
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Mar 10, 2009 (3:20 am)
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Replying to: tidester (Mar 09, 2009 8:33 pm)
Whoops, indeed i did, sorry 'bout that, haha. 
Yeah I'm going to take it to a shop today to get it checked out, hopefully it just got disconnected or something...i'll updated later, thanks!
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- #1942 of 1990
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Re: KIA Sorento stalls when driving between 60 and 70 KMH [kiakelly]
by kbeyer
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Mar 14, 2009 (2:56 pm)
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Replying to: kiakelly (Mar 08, 2009 8:04 pm)
I have had this exact same problem on my Grand Prix, but have never experienced it with my Sorrento. The problem with the Grand Prix turned out to be the Crank Position Sensor. The car would just die whilst driving right after a quick jump in RPM like you described. It wouldn't start again for like 5-10 minutes, but after that wait it would fire right up and run fine for another day or so until it happened again. It's a cheap part, but depending on where it's located may make it an expensive repair (mine wasn't under warranty).
Anyway, hope this helps. I know it wasn't a Kia, but the problem was so similar I had to respond.
Good luck!
Kevin.
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- #1943 of 1990
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Re: KIA Sorento stalls when driving between 60 and 70 KMH [kbeyer]
by kiakelly
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Mar 14, 2009 (3:45 pm)
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Replying to: kbeyer (Mar 14, 2009 2:56 pm)
Thanks. The dealership extended my warranty for 1 month and they replaced the crank shaft sensor and so far seems to be OK. It makes me feel better to know this resolved your issue. These forums have been very helpful.
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- #1944 of 1990
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Re: KIA Sorento stalls when driving between 60 and 70 KMH [kiakelly]
by arosen1
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Mar 22, 2009 (12:12 am)
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Replying to: kiakelly (Mar 08, 2009 8:04 pm)
Mine is doing the EXACT same thing! It's a 2003, and will also cut out at lower speeds as well. Very hopeful someone can shed some light.
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- #1945 of 1990
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Re: KIA Sorento stalls when driving between 60 and 70 KMH [arosen1]
by kiakelly
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Mar 22, 2009 (6:09 am)
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Replying to: arosen1 (Mar 22, 2009 12:12 am)
It has been over a week with me driving every day with no issues since replacing the crank shaft sensor. While they were in there, I also had the timing belt tuned up as I saved a lot of money on labour with the sensor being replaced under an extended warranty so not sure if that helped with the resolution as well. Just very happy everything seems to be working well again. As I said before, I have always loved this vehicle, just not the service provided by KIA.
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- #1946 of 1990
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radiator fan keeps running
by brandybild
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Apr 02, 2009 (1:30 pm)
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I have an 03 Sorento (actually, I have two identical 03 Sorentos) and basically, pretty satisfied. My question here is about the radiator fan on one, which sometimes continues to run for ever after the engine is shut off,. I udnerstand that if the engine is really hot, this fan may continue to run for 10 minutes or so after the car is shut down when it is working right, but, apparently, the relay or whatever is stuck because some times the fan runs a long time, engine very hot or not. It may happen 1x month, but, if I don't notice it and go into work, battery will be dead when I come out. I can stop it/reset it by pulling out one of the fuses under the hood, but sometimes I don't notice it...anybody got any ideas what is happening and what I could do? I'm afraid I'll be out of work soon and don't have a lot of money to spend at the dealer but am pretty handy. Thoughts anyone?
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- #1947 of 1990
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Re: radiator fan keeps running [brandybild]
by buddyridesagai
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Apr 03, 2009 (4:30 am)
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Replying to: brandybild (Apr 02, 2009 1:30 pm)
Hi there, i have an 03 Sorento as well an dthis has happened a couple of times to us as well. but it was in the late spring last year and found it weird. a short time later i was getting electrical problems and finally had the tail light stop working totally. I checked the fuses in the cab of my Sorento and then checked the fuses under the hood and found that the the tail light or parking light fuse was not there and in its place found a rubber fuse that said do not use. I found it weird and replaced anyways with a real fuse as indicated. all the electrical troubles we had during this time has stopped completely for some reason and believe the computor was trying to keep the lights going even without the fuse in and bypassed it or something. But 6 or so months later there has been no signs of an electrical problem and the rad fan has never continued after the motor has been shut off. you can check it if you wish and i know it sounds stupid and that it can not be real but since i have replace that one fuse it seams to have calmed or stopped ll my electrical issues I was having with my vehicle. Let me know how it goes for you.
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- #1948 of 1990
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Re: KIA Sorento stalls when driving between 60 and 70 KMH [kiakelly]
by mike954
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May 01, 2009 (12:35 pm)
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Replying to: kiakelly (Mar 08, 2009 8:04 pm)
I also have a KIA Sorento that caused me some anxious moments. Its a 2005 and twice after driving at highway speeds then slowing down it would not speed up and shift to appropriate gear going uphill but rather stayed at about 40 - 45 mph. No engine light came on. Took it to dealer and they adjusted throttle sensor.
I also filled out report with National Highway Transportation Safety Administration - Office of Defects Investigation in case other people were having the same problem.
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