2005 Sorento Cuts Stalls while driving - Kia Forum
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#1 (permalink) Old 01-05-2010, 12:57 PM
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Default 2005 Sorento Cuts Stalls while driving

We are having a terrible time with our Sorento. Quite some time ago it started losing power in passing gear - not cutting out completely but just losing power to pass etc. While replacing battery discovered that after being disconnected and reconnected after some time it worked fine. We were told this resets the computers. Would drive fine like that for quite some time and then occur again. Unplugging the battery for a period of time would fix the problem for a while. Had been running fine though we did have a scare with the lights dimming on a interstate trip a couple months ago. Never happened again so I don't know if this is related.

Anyway, this weekend while driving through mountains car completely stalled after running fine for about 2.5 hours. Quickly resarted, made it to destination parking lot, stalled and then wouldn't resart. Let sit for a while while unhooked from battery and started fine and ran fine for a day. On the drive back home from the mountain on the 3rd day completely stalled while going 65 mph. Dead on the side of the road and won't restart. Towed to repair shop (car has over 100k miles) Told it was fuel injectors. Replaced fuel injectors, and oil change. Want to change battery and we will do on our own since it's still under proration. Drove home all fine. Drove next day, out to lunch, won't start at restaurant. Replace battery even though when tested said it can be recharged - not dead. Car starts up and makes it home fine. Drive to work fine. Drive out on calls running a little hot. Stalls out again in town and won't restart. Repair shop is trying to say battery cables not tightened enough HA. They don't seem to want it back to fix again.

Any help or ideas?????? Just started a new job after 6 months of unemployment and need this fixed!!!! Thanks.
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#2 (permalink) Old 01-05-2010, 01:28 PM
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Does It Have Any Service Lights On On The Dash? Have You Done A Tune Up? Regular Maintenance Stuff? Could Be A Number Of Things From Throttle Position Sensor To Crank Or Cam Sensor Or Even A Software Update. I Would Suggest Taking To Qualified Repair Facilty Or Your Dealer To Diagnose. Kps
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#3 (permalink) Old 01-05-2010, 01:58 PM
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no, no service lights. After letting is set for a while with the battery disconnected it has started again and trying to make it to the dealer before it dies again. Why would disconnecting the battery for a while sometimes help a bit???

Is this a common problem with the 2005 Sorento, I've heard other stories similar on the net but no solutions?
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#4 (permalink) Old 01-05-2010, 02:56 PM
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Disconnecting The Battery Would Reset Your Ecu...engine Computer...similar To A Microsoft Reboot. I Wouldnt Say Its A Common Issue...ie: Goes Bad On Every Sorento...based On My Experience With What I See Come Through The Service Department Here. Kps
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#5 (permalink) Old 01-05-2010, 03:16 PM
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ok, being towed to nearest dealership now. Tried to ask for the message code from the previous repair shop but they haven't given it. Guess it's back to square one at the dealership. At least we know they will be able to see something is wrong with it right now. Thanks for responding. If you don't mind I'll probably post what I find out so as to be helpful to others and also to see if it's sounding logical.
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#6 (permalink) Old 01-05-2010, 10:00 PM
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Dealer service suggests a cam sensor problem, also suggest timing belt change which hasn't been done yet and car has 120K miles. And front brakes which we figured were worn. $900 reasonable??????????????
Guy insists this will fix problems. Was diagnosis by original garage (cleaning of fuel injectors) a reasonable first step or did we basically throw away $200???? When questioning about problem code they said it was erased before they serviced it.
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#7 (permalink) Old 01-05-2010, 11:31 PM
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i would say $900 for all of that sounds reasonable. it'd be a toss up between the crank sensor, cam sensor, or throttle position sensor and most of the time these three things will throw a code if they're having problems. if the TPS was having a problem it could cause the transmission not to shift down when you push down on the pedal. this is a sure fire sign that the TPS is messed up even if there's no code in the system. as for checking the crank or cam sensors, you'd have to put them on an oscilloscope and monitor their waveforms to see if they're bad.

the previous shop probably cleared the code and didn't share the code number with you because they didn't want to go to another shop with that information. they do it all the time.

"One who is slack in his work is brother to one who destroys."
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#8 (permalink) Old 01-06-2010, 10:29 AM
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ARE YOU STILL ON THE ORIGINAL TIMING BELT? IF SO YOU ARE ON BORROWED TIME. IF IM NOT MISTAKEN, RECOMMENDED CHANGE INTERVAL IS 60K>? CAM SENSOR IS POSSIBLE, IF YOU'VE PAID THEM FOR THE DIAG I WOULD GO WITH IT. THE DEALER IS SUPPOSED TO KNOW THE VEHCILES BEST RIGHT? >WELL...MOST< FRONT BRAKES ARE THEY REPLACING PADS AND ROTORS OR REPLACING PADS AND MACHINING THE ROTORS? i'd get a break down on cost of the $900.00
NOT SO SURE ON YOUR ORIGINAL GARAGE QUESTION....WHAT DID THEY DO TO CLEAN THE INJECTORS? MOST PLACES SIMPLY DUMP FUEL SYSTEM CLEANER IN THE GAS TANK WITH A FULL TANK OF GAS. IF ALL THEY DID WAS POUR IN AN ADDATIVE 200 IS PRETTY STEEEP $$$ EVEN WITH DIAGNOSING...BUT IT SOUNDS LIKE MORE A GUESS THAN A DIAGNOSIS. KPS


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Originally Posted by aznightmare5 View Post
Dealer service suggests a cam sensor problem, also suggest timing belt change which hasn't been done yet and car has 120K miles. And front brakes which we figured were worn. $900 reasonable??????????????
Guy insists this will fix problems. Was diagnosis by original garage (cleaning of fuel injectors) a reasonable first step or did we basically throw away $200???? When questioning about problem code they said it was erased before they serviced it.

Last edited by KIAPARTSOURCE; 01-06-2010 at 10:36 AM.
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#9 (permalink) Old 01-06-2010, 11:23 AM
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yes, embarrasingly enough we are still on the original timing belt so that for sure will be done. Yep, I'm concerned about fixing the cam sensor when it could be the crank sensor or TPS. Especially if you are telling me the TPS won't throw a code out. I just don't want to keep fixing things in an elimination process ya know? I've read alot on the net of people having this problem and having many things fixed without fixing the problem yet. I guess like you say, we have to go with the dealer diagnostic. I believe they are just replacing the pads on the front brakes. Not sure about machining rotors but I would hope so????? I'll check. I know they are NOT replacing rotors but you never know, my get a call today with other things needing to be done huh???/

The other shop, not sure how they cleaned the fuel injectors but clearly 200 bucks is too much to run some degunker through - if that's what they did.

Hey, I'm learning thanks to you guys. Sorry about the lack of technical answers on my part - hey I'm a girl I'm now getting to probably be the pain in the neck girl type who comes in with just enough knowledge to drive you nuts huh?????
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#10 (permalink) Old 01-06-2010, 11:54 AM
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I'D ASK FOR A BREAK DOWN OF THE WORK, IF YOU HAVENT DONE A TUNE UP (PLUGS/WIRES) YET OR NEED THE DRIVE BELTS REPLACED IT MAY BE A GOOD IDEA TO GET DONE WITH THE TIMING BELT...MAY BE SOME LABOR OVERLAP INVOLVED. THAT IS IF YOU INTEND ON KEEPING IT FOR THE FORESEEABLE FUTURE....THE 2011'S ARE REALLY NICE . IF THEY ARE REPLACING PADS THEY SHOULD ATLEAST MACHINE THE ROTORS... kps
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