Crankshaft sensor light is it a early sign of IMS failure?
 

I have a 2002 996 and My mechanic wants to change the IMS do to a crankshaft code error, there's no noise or any other sign of failure other than a misfire I took it to have the oil pressure sensor change and to see if the crankshaft sensor need it to be replace since it will pop occasionally, please I need advice.

When you say "change the IMS", does that mean your mechanic wants to replace the entire shaft, or the IMSB=bearing? Why would your mechanic want to do that when you took it in to replace the oil pressure sensor and check on a misfire, and possibly see if you need a new crankshaft sensor? What CEL codes are you seeing? What leads you to think a crankshaft sensor needs to be replaced? You need a new mechanic and a second opinion. You need a better understanding of what your present mechanic is suggesting. Get your car out of there before moving forward.

He want's to change the IMS bearing, I took it since the engine light turned on and the car had a small misfire and also I had a low oil beeping last week that really scare me but find out it is something that 996 will have eventually, then he said this are early signs of the IMS bearing failure

Get yourself a new technician, neither are signs of IMS failure.

Really, you are hopelessly in over your head. So the car has a misfire (get the code or go to Autozone and have it read) and low oil pressure because possibly the oil sender unit is bad (common). Did you check the oil level to make sure? A check engine light due to a misfire is very common and could just be a result of moisture. You seriously need a different mechanic with 996 engine experience. This guy is giving you a line of BS.

Thank you very much, he said not to move it or it cut be a disaster but there's no noise or grinding sound, He was a porsche mechanic and had done some small jobs on it but he knew how people tend to over react when the IMS bearing is mentioned and wants to charge me $ 1,500.00 I'm pretty sure he was going to spend $200 on the sensors and give and old bearing.

All I can say is there are so many concerns here. It is YOUR car, so you decide what to do. A failing IMSB does not cause a check engine light, but a misfire will. There is no way to determine if your IMSB is failing unless you pull it, and then a replacement bearing is necessary. Is your car auto or manual? Because if it is a manual, depending on mileage, there are a lot of other things to consider doing at the same time (clutch, etc.). I would have him address the misfire, replace the oil sending unit, and then YOU need to read up on the IMSB and determine if/when you are going to have it replaced. And if you decide on IMSB replacement, the best way to go is with the Solution. I doubt your mechanic is certified to install the Solution. Check out LN Engineering. https://lnengineering.com/

Is a manual and it shift perfect so is not in my mind to replaced it soon I will put a ceramic or a better one when that time comes.
I'm getting the car out and I may even do the sensors my self.
Thanks again.

Can someone give the phone number of a good mechanic on the Dallas area.

Thanks.

I took the risk and the advise of not changing the IMS bearing and to my super bad look the engine blow up and now I'm asking you all for help I need a new engine for my 2002 the core has a hold so I don't think it can be use.

Any help will be much appreciated, the car is sitting on Fix n Go in Plano TX. Danny the owner is a great guy.

Go to Mayo! They are even certified for the IMS Solution.

Which shop is telling you this info?

Uh oh... The engine blow up now...go boom! :eek: I smell a troll! :roflmao:

So you threw a rod and it put a hole in the block, and now it is unusable. Did you ever bother to check the oil level? Change the oil and have the filter inspected? Kind of pointless at this point in time....but it might have helped.

When I read this thread for the first time this morning it was pretty obvious that not all the information was posted, i.e. maybe the original mechanic found some serious cam deviations when troubleshooting. It sure seemed like more info was required to evaluate the initial mechanics diagnostics.

Sorry to hear about your engine. You really need to post more information such as what happened, what is the damage so we can provide guidance.