Crankshat position - intake camshaft position not plausib...

Crankshat position - intake camshaft position not plausible bank 2 Mechanic's Assistant: What is the make/model/year of your car? Cadillac xts 2013 Mechanic's Assistant: Are you fixing your XTS yourself? What have...

Crankshat position - intake camshaft position not plausible bank 2 Mechanic's Assistant: What is the make/model/year of your car? Cadillac xts 2013 Mechanic's Assistant: Are you fixing your XTS yourself? What have you tried so far? Yes Mechanic's Assistant: Anything else you want the Mechanic to know before I connect you? Change crankshaft sensor, camshaft sensor, map sensor, spark plugs, oil change

Automotive Expert
Hi, my name is\*\*\*\*\*’ve been a technician on Just Answer since 2007 and I'll be helping you today. I'm sorry to hear you are having difficulties with your vehicle. I know how inconvenient car trouble is, but together, we will get your vehicle back up and running quickly. May I ask whom I am chatting with today?

name is Omaris this 26 is per hour, per month? how is it work
Automotive Expert
Hi Omar it's nice to meet you. A very common issue that will cause this code is the [timing chains](/topics-timing-chain/) or the chain tensioners. I would take a look or check the chain for looseness, if there is any, then replace the tensioners and see if the issue goes away. If the chain is tight, then the issue might be the oil control valve. But a more common issue is actually the tensioners themselves. It's $26 for the phone call, one call. I don't do the calls, but some of the other experts do if you decide to take the site up on that offer.

what about the camshaft position actuator selinoid vlaveIs this can cause P0018?
Automotive Expert
This is a list of possible causes. The tensioner issue I was refferring to there is a service bulletin because it's so common. Probable Causes Camshaft Position (CMP) Actuator Solenoid Valve Camshaft Position (CMP) SensorCrankshaft Position (CKP) SensorCrankshaft Reluctor Wheel Moved From Crankshaft Top Dead Center (TDC) [Engine](/topics-engine-cadillac/) Valve Timing IncorrectTiming Chain Tensioner

from scanner I get the following p0018 crankshaft Position- Intake camshaft position not plausible bank 2 crankshaft Position- [exhaust](/topics-exhaust-cadillac/) camshaft position not plausible bank 2
Automotive Expert
Its indicating to me that the timing chain is off a tooth or two.

are you sure?then why I do not get the same reading from bank 1 because it will be of of the same amount of tooth
Automotive Expert
Well, from here it seems logical, I am not there to pull the cover or check the timing, but since it's such a common issue GM wrote a bulletin to have techs check the chain first, it seems pretty likely. I am not there working on the car. You can check the other items on the list or do a leak down test on bank 2 cylinders to determine if the valves are open at the wrong time. Because it's not off on bank 1, it's off on bank 2.

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