New member here. Thanks for reading!
A little background: I just picked up a nice (looking) 2015 cx-5 with just over 100k miles, and the 2.5 engine. I acquired it from a tow company with a clean title for $6500, but it knocks and has a P0015 and P0017 code.
I searched high and low online and haven't found another instance of these codes with a consistent loud top-end knock.
I located a replacement engine before i bought it, just in case they ran it out of oil, or it's cost prohibitive to repair the engine.
I am an accomplished hobby mechanic, but I'm busy, and so my master mechanic brother in law is doing the repairs. He's only taken a brief glance at it with his stethoscope, but he agreed it's in the top end. And, the codes are pointing us to maybe a slipped timing chain or? He has seen cams knock like this, and I've heard loose lifters slap similarly.
Anyhow, any advice is greatly appreciated on what it might be, and if I'm going to spend too much in labor messing with it, and should just swap the engine ($1000-$1500 labor).
I am afraid they ran it out of oil or raced the engine a lot, and that it may be crank bearings next, but I don't know what to expect out of these engines.
I was thinking that an oil analysis would tell me if there was massive abuse or oil starvation via bearing material?
The knock is persistent through out the rpm range, and it's pretty loud, but not a rod. It has low power, but I'm guessing it's in limp mode.
The oil needs changed, and is brown, and smells a bit like fuel, but probably just has 5k miles on it and is pretty normal. No silver in the oil on the dipstick.
The previous owner up and moved to Holland and abandoned the car. So, who knows if they decided to race the heck out of it before they left. Looking like they came into a big inheritance or sugar mama/daddy, who knows...
Lastly. Can the cam timing control apparatus fail in such a manner as to have a valve contact a piston? That might be what we're hearing with the knock.
Thank you for any expertise on this problem. I am determined to get it back on the road and put many miles on it!
A little background: I just picked up a nice (looking) 2015 cx-5 with just over 100k miles, and the 2.5 engine. I acquired it from a tow company with a clean title for $6500, but it knocks and has a P0015 and P0017 code.
I searched high and low online and haven't found another instance of these codes with a consistent loud top-end knock.
I located a replacement engine before i bought it, just in case they ran it out of oil, or it's cost prohibitive to repair the engine.
I am an accomplished hobby mechanic, but I'm busy, and so my master mechanic brother in law is doing the repairs. He's only taken a brief glance at it with his stethoscope, but he agreed it's in the top end. And, the codes are pointing us to maybe a slipped timing chain or? He has seen cams knock like this, and I've heard loose lifters slap similarly.
Anyhow, any advice is greatly appreciated on what it might be, and if I'm going to spend too much in labor messing with it, and should just swap the engine ($1000-$1500 labor).
I am afraid they ran it out of oil or raced the engine a lot, and that it may be crank bearings next, but I don't know what to expect out of these engines.
I was thinking that an oil analysis would tell me if there was massive abuse or oil starvation via bearing material?
The knock is persistent through out the rpm range, and it's pretty loud, but not a rod. It has low power, but I'm guessing it's in limp mode.
The oil needs changed, and is brown, and smells a bit like fuel, but probably just has 5k miles on it and is pretty normal. No silver in the oil on the dipstick.
The previous owner up and moved to Holland and abandoned the car. So, who knows if they decided to race the heck out of it before they left. Looking like they came into a big inheritance or sugar mama/daddy, who knows...
Lastly. Can the cam timing control apparatus fail in such a manner as to have a valve contact a piston? That might be what we're hearing with the knock.
Thank you for any expertise on this problem. I am determined to get it back on the road and put many miles on it!
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