Check Engine - camshaft position slow response - Oil control valve?

[Austin S]

I was going 80mph with a 15mph headwind with temperatures of -20 to -25 below. When I was 40 minutes into the drive I started to lose power where I couldn't floor it in 5th gear I noticed. And the check engine was on. When I stopped for a little while and turned back on my Jeep it reset my power I noticed. I'm curious if this is an issue or if it's just the cold. Or something deeper.

The code says p000a - a camshaft position slow response bank 1
P105c - intake valve stuck in low lift position.
P100a - a camshaft position slow response Bank 1
P105c - intake valve stuck in low lift position.

Those are all my codes. Autozone says most likely solution is replace oil control valve from the code reader.

Any help is very appreciated. Thanks, Austin

Ps: I had my lifters replaced probably about 8 months ago. I believe it was under warranty and they only replaced some and not all of them.
This has happened the last 3 days. All after a half hour of driving on the highway. Roughly negative -10 to -25 below.

Sponsored

 

[Stan H]

The oil control valve is on the front of the motor there are 2 other one on each bank. I think first I would check for corrosion or loose connections in the plug. But if I recall those oil control valves can be gotten to without a enormous amount of fuss .

 

[Charles 236]

I have found that often a "camshaft position slow response " code is a result of a camshaft phaser issue, not an oil control valve. On these engines, each camshaft has a phaser, which is fastened to the camshaft by the oil control valve. So the oil control valves are accessed by removing the valve covers. The variable valve lift solenoids are in the valve covers, directly in front of the first coil on each bank, and at the rear of the heads near the upper corner.

I would recommend finding out what caused the codes to set before replacing any parts. The extreme cold may have been a factor in setting the DTCs. If you do go on to replacing the phaser, you may as well replace the oil control valve to, since it has to be removed to remove the phaser.

Also, if you pull the valve cover, just below the phasers, there are three bolt heads visible. These are actually oil galley plugs, and if they are loose pressure is lower than may be required to operate the phasers and variable valve lift.

 

[Charles 236]

Here is where the oil gallery plugs should be, the places in the center of this picture where oil is running out. These plugs will loosen occasionally, but it was a one of one occasion to see a Pentastar with them missing.

 

[jstockton]

Did you ever get this fixed?

Sponsored