Hot Rod Forum : Hotrodders Bulletin Board - Reply to Topic
Hotrodders.com -- Hot Rod Forum



Register FAQ Search Today's Posts Unanswered Posts Auto Escrow Insurance Auto Loans
Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Electrical> New gas sending unit not working?
User Name
Password
lost password?   |   register now

Thread: New gas sending unit not working? Reply to Thread
Title:
  
Message:
Trackback:
Send Trackbacks to (Separate multiple URLs with spaces) :

Register Now

In order to be able to post messages on the Hot Rod Forum : Hotrodders Bulletin Board forums, you must first register.
Please enter your desired user name (usually not your first and last name), your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Additional Options
Miscellaneous Options

Topic Review (Newest First)
01-06-2013 06:32 PM
EOD Guy Good to hear it was an easy fix
01-06-2013 04:42 PM
darrin502 Glad u got it. Electric probs can be a pain.
Lee
01-06-2013 04:34 PM
HotRodMan
No voltage at gas gauge

OK I found the problem. I took a volt reading at the gas gauge with the key turned on and did not get any voltage. The wire that feeds the gauge comes from a switched terminal on the fuse panel. I checked the fuse panel and got a reading so I knew then the wire was bad. I fished the wire out of a spegetti network of wireing and discovered a rodent had chewed the wire in two. I installed a new wire from the fuse panel to the gauge and it works great now. Thanks to all who responded.
01-06-2013 12:07 PM
darrin502 If u can take and wire the gage and the float unit direct to the battery not thru the ignition sw & it works then u have a prob in the car wiring and if it doesnt work then it is in the gage or sending unit. Try going from the gage To ground and the gage should peg that will give a good test for the gage. Ground the wire going to the tank.
01-06-2013 11:35 AM
HotRodMan
Sending unit and gauge match

Yes the sending unit and gas gauge match. This is a 33-240 ohm matched set.
01-06-2013 09:01 AM
darrin502
Gasage problem

wired gas gages work on Ohm principle. You will have to find out the ohm rating of your gage and then match the float assembly with that also with the sending unit out of the tank make sure you have the sending unit grounded to the chassis of the car.
It might be 0-25 or 10-30 etc.
Hope that helps
01-06-2013 05:40 AM
EOD Guy Is the ohm resistance of the sending unit a match for the gauge you are using?
01-05-2013 09:34 PM
HotRodMan
New gas sending unit not working?

Working on a 1930 street rod 350 engine with "Tanks" U2-SS gas tank in the trunk. Previously the car had a floatless sending unit in the gas tank. It worked fine for about 10 months then went bad. The wiring for the floatless sending unit consisted of 2 grounds, 1 wire from the gas gauge, and 1 hot wire from the fuse panel, total of 4 wires. Gas gauge and wire is new.

We have decided to replace this with a universal "old style" sending unit with a float, model number SN-35. This is a brand new sender and there are no directions telling you how to wire it up. The top of the SN-35 unit only has two terminals. I connected the wire from the gas gauge to the center terminal (goes to reostat), and a ground wire to the other terminal on the mounting flange. I have the sending unit out of the tank and with the ignition switch in the on position, I am moving the float up and down but I am not getting any reaction on the gas gauge at all.

Can someone tell me what I am doing wrong?

Posting Rules
You may post new threads
You may 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


All times are GMT -6. The time now is 05:44 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
Copyright Hotrodders.com 1999 - 2012. All Rights Reserved.