Hi there. Has anyone had problems with the check engine light going on & off? By the time I take it to dealer the next day the light is off so they can’t run the diagnostic test. However they just kept my car for a week then said it was oil control valve. They fixed it & sent me on my way. The very next day it was back on. They kept car for another week & called back & said I need a new motor 😱 car is 2015 with almost 122k miles. Does this sounds right??? They said or maybe since you have so many miles you want to just get a new car!!

 

I’d get a second opinion.

 

Thank you for replying! I most definitely will be getting a second opinion. I just have to wait for the light to come on again

 

CEL codes should be stored. I don’t think you need to wait for light.

 

Did they not provide you a copy of the service order? Everything they did to test the problem and the discovered findings should be on there.

I find it hard to believe the only information they provided was “New Engine Required”.

 

Here is the report I got:


Notes from current repair order.
03/17/2022
PERFORMED HEALTH CHECK. RETRIEVED DTC P001700
CRANKSHAFT-CAMSHAFT POSITION CORRELATION BANK1 SENSOR B.
FOLLOWED DTC FLOW CHART. ACTIVE TESTED VVT SYSTEM. WORKING
NORMALLY. INSPECTED OIL CONTROL VALVE. FOUND TO BE
INTERMITTENTLY STICKING. SWAPPED OUT OIL CONTROL VALVE FROM
ANOTHER NX. CLEARED DTC AND ROAD TESTED OVER 20 MILES. NO
RETURNING DTCS.
1ST STEP REPLACE OIL CONTROL VALVE AND RE-CHECK.
CREATED TAS CASE 220770401. ADVISED BY AGENT TO CONTINUE
WITH OCV REPLACEMENT.
REPLACED OIL CONTOL VALVE. ROAD TESTED VEHICLE.
VEHICLE DRIVEN 100+ MILES. DTC RETURNED P00170. CONTACTED
TAS. AGENT ADVISED TO CHECK ENGINE MECHANICAL SYSTEM. FOUND
ENGINE TO HAVE EXCESSIVE BUILD UP IN OIL CAUSING RESTRICTION
TO OIL PRESSURE.
REC. REPLACE ENGINE LONG BLOCK ASSEMBLY.

 

Oil sludge issue?
How was the oil change history on this vehicle?
I would try a series of multiple oil changes, or better yet , several engine flush procedures to see if it improves the situation, it definitely can’t make it worse.

 

Do you folks really think they drove the car 100 miles? And, that they saw no evidence of the "sludge" buildup during the entire test process? I am skeptical...

 

How often do you change your oil and with what type of oil? Do you tow? What gas octane do you used? These small turbo engines get hot, need to maintain it properly.

 

Based on the codes being generated they may of suspected it, but sludge is only confirmed by visual inspection. Most likely, they removed the valve cover and/or the oil pan and the ugly sludge beast presented itself.

 

Sounds like your car didn’t have regular oil changes. Do you have full service history? Bring a turbo, it will not last without very strict intervals on oil change.

 

One of the issues with some Lexus owners is that they mistakenly think that reliability means one could skip on maintenance or use oil and gas that are not properly rated. Oil sludge is usually cause by poor oil circulation, hot spots or using the wrong type of oil.