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 > 47 - Current classic GM Trucks > The 1969 - 1972 Blazers and Jimmys Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 01-03-2012, 07:22 PM   #1
bigeasycigars
Registered User
 
bigeasycigars's Avatar
 
Join Date: Mar 2010
Location: Los Angeles, California
Posts: 226
Fuel Gauge at 3 o'clock?

I have a '71 K/5. Fuel gauge needle sits at 3 o'clock position. Just installed new 20 gallon poly tank with new sending unit etc. It read perfectly for 6 months now the fuel gauge needle sits at 3 o'clock position. Any ideas?
__________________
'71 K/5 CST Work in progress...In Sicily, women are more dangerous than shotguns.
bigeasycigars is offline   Reply With Quote
Old 01-03-2012, 07:39 PM   #2
tubbedII
needs more $$$
 
tubbedII's Avatar
 
Join Date: Mar 2004
Location: Sacramento
Posts: 1,936
Re: Fuel Gauge at 3 o'clock?

I think it reads full if the gauge/sending unit wire's is grounded. I'd check that 1st.
__________________
1970 2wd Blazer
tubbedII is offline   Reply With Quote
Old 01-03-2012, 08:08 PM   #3
Ole Beater
Registered User
 
Join Date: Oct 2011
Location: St Petersburg, Florida
Posts: 154
Re: Fuel Gauge at 3 o'clock?

I think that the guage wire is a brown wire that runs down the driver side of the frame rail. I would trace it all the way back to the firewall. Also check the ground wire. I think 0 ohms reads empty and 90 reads full. I just replaced my float switch.
Ole Beater is offline   Reply With Quote
Old 01-07-2012, 08:38 AM   #4
DugJones
Registered User
 
Join Date: Aug 2010
Location: Fredericksburg, VA
Posts: 14
Re: Fuel Gauge at 3 o'clock?

I had the same issue and it drove me nuts for weeks. Turned out that the float had fuel in it.
DugJones is offline   Reply With Quote
Old 03-15-2012, 05:10 PM   #5
bigeasycigars
Registered User
 
bigeasycigars's Avatar
 
Join Date: Mar 2010
Location: Los Angeles, California
Posts: 226
Re: Fuel Gauge at 3 o'clock?

Ran a new ground wire and all is well. Thanks guys!
__________________
'71 K/5 CST Work in progress...In Sicily, women are more dangerous than shotguns.
bigeasycigars is offline   Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

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 08:59 AM.


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