General Chat Chat about all things Blazer (and related vehicles). Off-topic stuff should be in the lounge, and all mechanical problems should be posted in the proper forum.

Couple questions about the GM Tech II

Thread Tools
 
Search this Thread
 
Old May 17, 2015 | 12:57 AM
  #1  
Davecubs14's Avatar
Thread Starter
|
New Member
Joined: Jan 2012
Posts: 69
From: Huntsville, AL
Davecubs14 is on a distinguished road
Default Couple questions about the GM Tech II

So computer threw a crankshaft code. After searching about it, took the crankshaft position sensor out to examine it, it has looked like it was getting hit and had scratch marks on it. I put a shim on it and took it to a shop to do a relearn - mechanic said on the tech 2 everything was within specs so first question is does it actually show you the crankshaft position sensor placement on the scanner or something? Never heard about it actually showing you. He also said the scanner showed valve damage within the motor, can it also really show that? He said he could print out a written report for 99 bucks other than that, it was free because he did not do the relearn. And yes, I know I have to get that relearn done Thanks guys!
 
Old May 21, 2015 | 12:46 AM
  #2  
Davecubs14's Avatar
Thread Starter
|
New Member
Joined: Jan 2012
Posts: 69
From: Huntsville, AL
Davecubs14 is on a distinguished road
Default

Bump!
 
Old May 21, 2015 | 05:12 PM
  #3  
Captain Hook's Avatar
Moderator
Joined: Mar 2009
Posts: 8,453
From: Belleville, Michigan
Captain Hook is a jewel in the roughCaptain Hook is a jewel in the roughCaptain Hook is a jewel in the roughCaptain Hook is a jewel in the rough
Default

No scanner will show placement of the CKP sensor. They can not show valve damage either. A cylinder leakage test or a visual inspection is necessary for that. Might want to have them check/adjust camshaft retard when they do the CKP relearn. Needs to be zero degrees, plus or minus 2 degrees. It will not set a DTC unless it's off by more than ~25 degrees, so unless they specifically checked it, and know what it should be, it could be off substantially, and you're relying on the technicians knowledge and product familiarity to find it.
 

Last edited by Captain Hook; May 21, 2015 at 05:19 PM.
Old May 22, 2015 | 12:49 AM
  #4  
Davecubs14's Avatar
Thread Starter
|
New Member
Joined: Jan 2012
Posts: 69
From: Huntsville, AL
Davecubs14 is on a distinguished road
Default

Thanks for the reply captain. I thought he was talking non sense about it showed valve damage and it's within specs. Supposedly the cam retard was good as well. But I'm thinking I'm just going to take it to the dealership to get it done. Might have better luck.
 
Old May 22, 2015 | 01:08 AM
  #5  
07nhbpsi's Avatar
Junior Member
Joined: Sep 2010
Posts: 329
07nhbpsi is on a distinguished road
Default

Originally Posted by Davecubs14
Thanks for the reply captain. I thought he was talking non sense about it showed valve damage and it's within specs. Supposedly the cam retard was good as well. But I'm thinking I'm just going to take it to the dealership to get it done. Might have better luck.
Yeah, better luck I'm sure..... Sounds like the place u went was trying to soak u!!! it truly is hard to find an "honest" mechanic good luck!!
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Gnfanatic
Steering, Suspension & Drivetrain
14
Jan 27, 2012 06:02 PM
DemoCar82
2nd Generation S-series (1995-2005) Tech
6
Nov 14, 2010 09:05 AM
Jackal
Engine & Internal
1
Dec 6, 2006 10:40 PM
jpap
General Tech Help
1
Oct 25, 2006 01:22 AM
Benado
General Tech Help
6
Oct 23, 2006 12:16 PM




All times are GMT -5. The time now is 07:48 AM.