The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.
Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > General Truck Forums > Engine & Drivetrain > LSx Swaps
Reload this Page Knock sensor problems

Web 67-72chevytrucks.com
Home Forums Gallery Site Merchandise Register FAQ Members List Subscribe Calendar


Reply
 
Thread Tools Display Modes
Old 08-08-2017, 11:16 AM   #1
BR3W CITY
meowMEOWmeowMEOW
 
BR3W CITY's Avatar
 
Join Date: Sep 2009
Location: MKE WI
Posts: 7,128
Re: Knock sensor problems
Quote:
Originally Posted by ls1nova71 View Post
You posted this just after midnight, so I think you're getting sleep deprived! Pretty sure its not possible to foul out a knock sensor.
Midnight, after a friends 3 day wedding weekend. I havent slept in about 50 hours. Time for bed.
__________________
'66 Short Step / SD Tuned / Big Cam LQ4 / Backhalfed /Built 4l80e / #REBUILDEVERYTHING

MY BUILD THE H8RDCPTR //\\ MY YOUTUBE CHANNEL REV J HD
BR3W CITY is offline   Reply With Quote
Old 08-12-2017, 12:26 AM   #2
suburban99
Registered User
 
suburban99's Avatar
 
Join Date: May 2014
Location: Mission BC
Posts: 452
Re: Knock sensor problems
Ok still having knock sensor issues..
I moved my OBD port into the cab so I can watch live data while driving.
The one thing that I noticed is the vehicle speed says 0mph...
I installed a Dakota Digital SEN-01-4L60 AND A SGI-5E speed sensor to cure a missfire I had (haven't had a misfire since)..should the speed data that the DD is giving the PCM show up on my Bosch 1100 reader? Or do I have an issue with the vehicle speed setup.
__________________
1962 C10 Longbox LS 5.3 4L60E----Sold$$
2014 Ram 4x4 3500 Laramie Diesel..Momma's truck
2015 Ram 4x4 1500
1997 Boxster.
1972 K10 Custom Deluxe LS 6.0
1950 GMC 3100 S10 & LS swapped
suburban99 is offline   Reply With Quote
Old 08-16-2017, 07:26 PM   #3
v30crewcab
Registered User
 
v30crewcab's Avatar
 
Join Date: Apr 2012
Location: Chatt Tn
Posts: 987
Re: Knock sensor problems
are the knock sensors torqued to spec?
__________________
88 military v30 crewcab shortbed 5.9 cummins, nv4500, 205
86 k30, 89 diesel burb, 76 gmc pathfinder
71 longbed 5.3 4l80
http://67-72chevytrucks.com/vboard/s...d.php?t=522535
v30crewcab is offline   Reply With Quote
Old 08-16-2017, 07:33 PM   #4
suburban99
Registered User
 
suburban99's Avatar
 
Join Date: May 2014
Location: Mission BC
Posts: 452
Re: Knock sensor problems
Quote:
Originally Posted by v30crewcab View Post
are the knock sensors torqued to spec?
No they are not...I am going to re-torque to 15ft pounds this weekend. I know they are much tighter than that.
__________________
1962 C10 Longbox LS 5.3 4L60E----Sold$$
2014 Ram 4x4 3500 Laramie Diesel..Momma's truck
2015 Ram 4x4 1500
1997 Boxster.
1972 K10 Custom Deluxe LS 6.0
1950 GMC 3100 S10 & LS swapped
suburban99 is offline   Reply With Quote
Old 08-17-2017, 11:10 AM   #5
ls1nova71
Registered User
 
ls1nova71's Avatar
 
Join Date: Dec 2009
Location: Independence Mo
Posts: 4,119
Re: Knock sensor problems
Quote:
Originally Posted by suburban99 View Post
No they are not...I am going to re-torque to 15ft pounds this weekend. I know they are much tighter than that.
The torque spec is so you don't over tighten them. They can be damaged by doing so. If they are damaged then re-torquing them wont help.
__________________
My '72 short bed build. http://www.ls1tech.com/forums/conver...6-0-4l80e.html

5.3 swap into my RUSTY '71 C10
http://ls1tech.com/forums/conversion...71-c-10-a.html
ls1nova71 is offline   Reply With Quote
Old 08-17-2017, 11:41 AM   #6
suburban99
Registered User
 
suburban99's Avatar
 
Join Date: May 2014
Location: Mission BC
Posts: 452
Re: Knock sensor problems
Quote:
Originally Posted by ls1nova71 View Post
The torque spec is so you don't over tighten them. They can be damaged by doing so. If they are damaged then re-torquing them wont help.
I'll replace them with GM sensors...live and learn
__________________
1962 C10 Longbox LS 5.3 4L60E----Sold$$
2014 Ram 4x4 3500 Laramie Diesel..Momma's truck
2015 Ram 4x4 1500
1997 Boxster.
1972 K10 Custom Deluxe LS 6.0
1950 GMC 3100 S10 & LS swapped
suburban99 is offline   Reply With Quote
Old 08-18-2017, 12:54 AM   #7
suburban99
Registered User
 
suburban99's Avatar
 
Join Date: May 2014
Location: Mission BC
Posts: 452
Re: Knock sensor problems
Changed out the sensors for GM sensors...my Son's an apprentice Tech and gets parts at dealer cost..unfortunately he works for a VW dealership...they were $90.00 each (CDN) holy crap. Well hopefully it's the fix. Torqued to 15ft Lbs..we'll see tomorrow.
__________________
1962 C10 Longbox LS 5.3 4L60E----Sold$$
2014 Ram 4x4 3500 Laramie Diesel..Momma's truck
2015 Ram 4x4 1500
1997 Boxster.
1972 K10 Custom Deluxe LS 6.0
1950 GMC 3100 S10 & LS swapped
suburban99 is offline   Reply With Quote
Reply

Bookmarks

« Previous Thread | Next Thread »

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -4. The time now is 09:22 AM.

67-72chevytrucks.com - Archive - Privacy Statement - Top

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2025, vBulletin Solutions Inc.
Copyright 1997-2025 67-72chevytrucks.com