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

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 02-09-2018, 12:40 PM   #1
MHeffeGMC71
Registered User
 
Join Date: Oct 2017
Location: Harlingen Texas
Posts: 30
No name LMC dash cluster ???

I can’t get the tack to work with my LS 6.0 swap. I called LMC to see who makes the cluster and try to find a wiring diagram but since I did not buy it from them they will not help me at all. I called New Vintage Gauge and they said it’s not one of theirs. The tack will only send a V4 signal. I have had the truck in the shop for 3 weeks now so any help you can give me would be great.
Attached Images
  
MHeffeGMC71 is offline   Reply With Quote
Old 02-09-2018, 02:04 PM   #2
ls1nova71
Registered User
 
ls1nova71's Avatar
 
Join Date: Dec 2009
Location: Independence Mo
Posts: 4,119
Re: No name LMC dash cluster ???

We need more info like what engine do you have, but i can give you some tips. Do you have it hooked to the white wire coming from the PCM that gives it a signal? For the 4 Cylinder tach signal, you will need to change the tach resolution from 6 to 3 in the tune, some sort of tuning software will be required. Also, if your PCM is newer than '03, you may need a pull up resistor to strengthen the signal enough for it to work.
__________________
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 02-09-2018, 02:17 PM   #3
mongocanfly
Post Whore

 
mongocanfly's Avatar
 
Join Date: May 2015
Location: Alabama
Posts: 14,670
Re: No name LMC dash cluster ???

ls1nova knows the electronics but....
just curious.. who did you buy it from and what makes you think its from lmc?
__________________
Mongo...aka Greg

RIP Dad
RIP Jesse

1981 C30 LQ9 NV4500..http://67-72chevytrucks.com/vboard/s...d.php?t=753598
Mongos AD- LS3 TR6060...http://67-72chevytrucks.com/vboard/s...34#post8522334
Columbus..the 1957 IH 4x4...http://67-72chevytrucks.com/vboard/s...63#post8082563
2023 Chevy Z71..daily driver
mongocanfly is offline   Reply With Quote
Reply

Bookmarks


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 12:59 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com