Crankshaft sensor light is it a early sign of IMS failure? - Rennlist - Porsche Discussion Forums

Go Back  Rennlist - Porsche Discussion Forums > Water Cooled Technical Discussion Areas > 996 Forum
Reload this Page >

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

Notices
996 Forum
Sponsored by:
Sponsored by: LN Engineering

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

Old 10-29-2018, 10:33 AM
  #1  
Fredycrudas
User
Thread Starter
 
Join Date: Oct 2018
Posts: 25
Default 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.
Fredycrudas is offline  
Old 10-29-2018, 10:43 AM
  #2  
DBJoe996
Addict
Rennlist Member
 
DBJoe996's Avatar
 
Join Date: Apr 2010
Location: Ormond Beach, FL
Posts: 2,995
Default

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.
DBJoe996 is offline  
Old 10-29-2018, 11:22 AM
  #3  
Fredycrudas
User
Thread Starter
 
Join Date: Oct 2018
Posts: 25
Default

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
Fredycrudas is offline  
Old 10-29-2018, 12:46 PM
  #4  
JohnCA58
User
 
Join Date: Jun 2016
Location: Fair Oaks, CA
Posts: 287
Default

Get yourself a new technician, neither are signs of IMS failure.
JohnCA58 is offline  
Old 10-29-2018, 01:09 PM
  #5  
DBJoe996
Addict
Rennlist Member
 
DBJoe996's Avatar
 
Join Date: Apr 2010
Location: Ormond Beach, FL
Posts: 2,995
Default

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.
DBJoe996 is offline  
Old 10-29-2018, 01:27 PM
  #6  
Fredycrudas
User
Thread Starter
 
Join Date: Oct 2018
Posts: 25
Default

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.
Fredycrudas is offline  
Old 10-29-2018, 01:52 PM
  #7  
DBJoe996
Addict
Rennlist Member
 
DBJoe996's Avatar
 
Join Date: Apr 2010
Location: Ormond Beach, FL
Posts: 2,995
Default

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/
DBJoe996 is offline  
Old 10-29-2018, 02:27 PM
  #8  
Fredycrudas
User
Thread Starter
 
Join Date: Oct 2018
Posts: 25
Default

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.
Fredycrudas is offline  
Old 11-07-2018, 11:44 AM
  #9  
Fredycrudas
User
Thread Starter
 
Join Date: Oct 2018
Posts: 25
Default

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

Thanks.
Fredycrudas is offline  
Old 11-07-2018, 12:48 PM
  #10  
TexSquirrel
Addict
Rennlist Member
 
TexSquirrel's Avatar
 
Join Date: Aug 2016
Location: Richmond, T E X A S !
Posts: 793
Default

I’ve heard good things about RAC Motorsports in Carrollton.
TexSquirrel is offline  
Old 11-08-2018, 10:17 AM
  #11  
Fredycrudas
User
Thread Starter
 
Join Date: Oct 2018
Posts: 25
Default

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.

Last edited by Fredycrudas; 11-08-2018 at 10:50 AM.
Fredycrudas is offline  
Old 11-08-2018, 10:47 AM
  #12  
islaTurbine
User
 
islaTurbine's Avatar
 
Join Date: Dec 2014
Posts: 912
Default

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

Which shop is telling you this info?
islaTurbine is offline  
Old 11-08-2018, 11:18 AM
  #13  
dporto
Addict
Rennlist Member
 
dporto's Avatar
 
Join Date: Oct 2014
Location: L.I. NY
Posts: 3,256
Default

Uh oh... The engine blow up now...go boom! I smell a troll!
dporto is online now  
Old 11-08-2018, 11:40 AM
  #14  
DBJoe996
Addict
Rennlist Member
 
DBJoe996's Avatar
 
Join Date: Apr 2010
Location: Ormond Beach, FL
Posts: 2,995
Default

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.
DBJoe996 is offline  
Old 11-08-2018, 11:48 AM
  #15  
Paul Waterloo
Addict
Rennlist Member
 
Paul Waterloo's Avatar
 
Join Date: Jul 2013
Location: Chicago, IL
Posts: 2,146
Default

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.
Paul Waterloo is offline  

Thread Tools
Search this Thread

Contact Us Advertising Cookie Policy Privacy Statement Terms of Service

© 2018 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: