Check Engine Light: cam position sensor

[Ron Veenker]

I have a 2009 3.8 with about 16K on the clock. The check engine light came on this morning and the shop I took it to said it was the "cam position sensor." Anyone else have experience with this issue? Is there a technical service bulletin related to the cam problems? Thanks for your help,

Ron

 

[PSL]

Automobiles these days are controlled partially by onboard computers, which rely on sensors that feed back data to the ECM. Our cars have a lot of sensors, and it is not uncommon for sensors to go bad from time to time, but most of the time the car will continue to function until the sensor is replaced. I believe the cam position sensor has input into the variable valve timing that our cars offer as an enhancement to increased horsepower and efficiency. Using an OBDII scanner it is easy to discover what made the check engine light to turn on, and to replace the part. Shouldn't be a big problem

 

[Ron Veenker]

Thanks so much, PSL. I was just whistling past the graveyard with this request hoping that someone would see it the way I'm looking at it. You have fulfilled my expectations. Thanks for the encouragement. I have a dealer's appointment for Wed a.m.

Ron

 

[PSL]

No problem Ron - let us know how the problem is resolved at the dealership. We are all still learning about our Genny's. I noticed that you live in Holden Beach, NC - glad hurricane Earl passed you by. I live in the Charlotte area myself.

 

[MrB0462]

http://www.autobizweb.com/partsdeptnapa/cam_shaft_sensor.htm

Basic information

 

[Ron Veenker]

http://www.autobizweb.com/partsdeptnapa/cam_shaft_sensor.htm

Basic information

Wow, MrB, that is a more serious piece of equipment than I thought. I hope it can wait until Wednesday. I have to drive several places on Tuesday for business. Can't cancel any of those trips. Thanks so much for sending the URL to me.

Ron

 

[Ron Veenker]

No problem Ron - let us know how the problem is resolved at the dealership. We are all still learning about our Genny's. I noticed that you live in Holden Beach, NC - glad hurricane Earl passed you by. I live in the Charlotte area myself.

Since purchasing our home here in 1996 we have been through 14 hurricanes and this is the weirdest of them all. It was as big as Floyd in '99 but left us virtually without significant trauma. Of course, Floyd made landfall at Cape Fear, 17 mi from here. But we had NO rain and only a little wind from the land side so the tides was not wind driven. Nevertheless we had 8-10' waves which extracted a significant amount of sand from our beach. But it was very strange to sit on your front deck sipping a drink and watching surfers enjoy the ride.

Ron

[/URL]

 

[Stoofpilot]

Hey Ron, I pulled my boat yesterday only to have not one drop of rain and no more than 15 MPH of wind at Porters Neck. What a non event!!

 

[mikec]

If the check engine /Malfunction Indicator light isn't blinking, it's safe to drive the vehicle... according to the local dealer's service guys.

I don't know exactly where it lives on the V6 engine... but cam position sensors are on the ends of the camshafts. Pop the hood, lift off the engine cover, and look at the valve covers. On the ends of one (or both) of them you'll see a small sensor with an electrical plug/connection. Tug on the connector and see if it's loose. Or just unplug & re-seat the electrical connectors on/near the valve covers. Then go for 3 short drives, shutting the engine off completely for a few seconds between each one. If you've "fixed" the problem, the ECU will reset the check engine light after 3 cycles for the cam position sensor. My V8 had a loose connector on delivery; it was on the back of the passenger side cylinder head/valve cover... and it slipped off when I pulled it - not fully installed at the factory. Code cleared within a mile of driving: I just pulled over, shut off the engine, restarted, and drove another block 3 times.

mike c.

 

[Ron Veenker]

Hey Ron, I pulled my boat yesterday only to have not one drop of rain and no more than 15 MPH of wind at Porters Neck. What a non event!!

Yes, well, you saw my note. I have never sat on my front deck with a drink and watched a hurricane pass. All of the previous 13 hurricanes have had much wind and rain to go along with the tidal surge. I'M NOT COMPLAINING

Ron

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[Ron Veenker]

If the check engine /Malfunction Indicator light isn't blinking, it's safe to drive the vehicle... according to the local dealer's service guys.

I don't know exactly where it lives on the V6 engine... but cam position sensors are on the ends of the camshafts. Pop the hood, lift off the engine cover, and look at the valve covers. On the ends of one (or both) of them you'll see a small sensor with an electrical plug/connection. Tug on the connector and see if it's loose. Or just unplug & re-seat the electrical connectors on/near the valve covers. Then go for 3 short drives, shutting the engine off completely for a few seconds between each one. If you've "fixed" the problem, the ECU will reset the check engine light after 3 cycles for the cam position sensor. My V8 had a loose connector on delivery; it was on the back of the passenger side cylinder head/valve cover... and it slipped off when I pulled it - not fully installed at the factory. Code cleared within a mile of driving: I just pulled over, shut off the engine, restarted, and drove another block 3 times.

mike c.

Mike, that is so helpful and so cool. I'll give it a look! Thanks so much.

Ron

 

[mikec]

Okay, now that I'm home and can eyeball my PDF files of the factory service manuals, I see for the V6 there are 4 camshaft positions sensors:
1: bank1/intake: between one of the engine hoist points and the arcs of the intake manifold... at the very back (firewall) end of the engine, roughly in the center.

2: bank 1/exhaust: near the back/passenger side of the engine, close to a fairly fat hose of some sort.

3: bank 2/intake: next to the oil filter, just a bit to the right (as you stand at the front of the car looking at the engine) of the filter.

4: bank 2/exhaust: a little "down" from the bank 2/intake sensor, basically start at the bank 2/intake sensor, cross over the valve cover, past the spark plug assembly, and continue down/past the valve cover. It's near the cat coverters or exhaust piping based on the fairly cryptic sketches in the manual.

good luck,
mike c.

 

[Ron Veenker]

Mike, I decided not to try it and now that I am aware that there are four...

But here's how it turned out: Went to Parkway Hyundai in Wilmington NC this morning. Their diagnostics say it is one of the OCVs [oil control valves]... which one? I don't know that they are sure.

I took my car for an oil change to a Texaco Lube and automotive shop near my home. The owner is an ex-service manager for a Hyundai dealership in northern NJ. His son is a Hyundai Certified Tech. Now, the guy who did the oil change was not either of these men. 36 hours after the oil change my "check engine light" lit up. There were an extra 2-3 quarts of oil in the crank case. They drained out the excess and charged me $19.95 because they had not done the oil change. The check engine light is still lit so they have ordered the OCV and I will have it replaced a week from now.

I curious as to whether I will have to pay for the part and labor since I did not bring the car to the dealership for the oil change. It does not seem right to me that the warranty should be nullified because of this error, but I really can sort of see it both ways. Opinions anyone?

Ron

 

[PSL]

I hope the dealer takes care of you on this, and if they do I’ll bet they will probably have you as a customer from now on. I wonder if they cleared the trouble code that is making the check engine light illuminate after draining the excess oil...
If they did that step and the light came back on, I would say you definitely need the extra work done.

 

[Ron Veenker]

I hope the dealer takes care of you on this, and if they do I’ll bet they will probably have you as a customer from now on. I wonder if they cleared the trouble code that is making the check engine light illuminate after draining the excess oil...
If they did that step and the light came back on, I would say you definitely need the extra work done.

Yes, they did. I watched the guy plug in the scanner and clear it. And it was off for about an hour. Then came back on.

Thanks,

Ron

 

[Ron Veenker]

Here are the results of the second visit to the dealer: I had an appointment for this morning at 8 AM to:

1) replace the oil control valve [row 1]

2) update the software for the ECM

3) replace the wiper blades [which I requested and is normal wear & tear]

I did not ask in advance for a "loaner" but on my request Parkway Hyundai furnished me a courtesy Elantra. I returned after three hours of breakfast and shopping to find the car nearly finished in the wash rack. I forgot to request "no wash" since I'm one of those Zaino fanatics who only washes he car with Zaino car wash solution. They told me they used Meguiar's wash in their system so I could have done worse.

I took the paperwork to the cashier who did all that excess clicking of keys for a fairly simple task [who designs all of this office software for dealerships and doctor's offices?].

NO CHARGE for any of it. I was relieved that they replaced the OCV since they could have claimed the guy who overfilled my crankcase ruined it. They certainly should have charged me for wiper blades but threw them in as a courtesy.

Kudos to Parkway Hyundai, Wilmington NC

Ron

 

[shaegelin]

My 2010 V6 (20,000 miles) had a check engine light with error codes p0024 and p0025. The dealer replaced the driver side exhaust oil control valve, but that did not solve the problem as the same p0024 and p0025 error codes returned.

Hyundai techline advised the dealer to replace Cam valve phaser so they replaced CVVT on bank 1 exhaust side. This seems have solved the problem (now one month w/no problem).

I am posting because this took many trips to the dealer to work out. The error codes were intermittent and would stay away for a day or two when cleared.

I am otherwise very happy with my Genesis. My only real complaint is that the left rear seatbelt latch and center rear seatbelt latch are mounted so that the belts have to cross. I have read that this is how they were meant to be installed but that seems so obviously wrong.

 

[TJ O]

I have this same problem......I have had my 2010 genesis for just over 2 months we bought it in feb 2013 and since then it has been at the dealer 3 times and this last time I was hoping the problem would be fixed but 24 hours later the check eng light is back on and I even threated the dealer to take the car back under the lemon law if that applies to used cars not sure about that one. I love the car but this is getting to be to much!!!!!!!! I bought a newwer car so I would have a dependable vehical at 3am when I have to go to work and I feel like I should have just keep my yukon it was old but it never gave me troulbe except in my wallet!!

 

[rjslice]

Well I have been having problems with the same check engine light and cam shaft position error code for the last year or so. I finally had the Oil Control Valve replaced today. Will have to wait and see if that fixes it!