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#98027 11/10/2006 4:51 AM | Joined: Oct 2006 Posts: 120 Wrench Fetcher | | Wrench Fetcher Joined: Oct 2006 Posts: 120 | When I turn on the ign. the gage needle shoots up to full and when I turn it off the gage shows between 1/4 and 1/2 full which is about the amt. in the tank. The wiring is right at the sending unit -- a ground and wire to the fuse box and then to the dash gage. Cant tell if it is wired right at the back of gage -- chances are it is. Does this indicate a problem with the gage itself? :confused: | | |
#98028 11/10/2006 4:09 PM | Joined: Aug 2005 Posts: 6,377 Ex Hall Monitor | | Ex Hall Monitor Joined: Aug 2005 Posts: 6,377 | It should show empty when the key is off. Showing full when the key is on indicates a bad circuit. The default position is full when the circuit is incomplete (broken wire, bad ground, etc.). There have been tons of discussions about similar problems. Using the search at the top of the page will save a lot of rehashing. Good luck.
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#98029 11/23/2006 12:30 AM | Joined: Feb 2006 Posts: 150 Shop Shark | | Shop Shark Joined: Feb 2006 Posts: 150 | I plan to be doing some fuel gauge troubleshooting this weekend. I found some seemingly excellent information at [email protected]. I'm trying to complete someone elses 6V to 12V conversion and needed some guidance on installing a runtz voltage reducer. In doing so, I found the troubleshooting gas gauge problems.... writeup. Good Luck. | | |
#98030 11/29/2006 4:02 AM | Joined: Oct 2006 Posts: 120 Wrench Fetcher | | Wrench Fetcher Joined: Oct 2006 Posts: 120 | sfsutton, Thanks for the info. I'll check it out first chance I get. My priority list is long and what keeps my truck on the road comes first but I'll get to it again eventually. | | |
#98031 12/01/2006 10:50 PM | Joined: Jul 2005 Posts: 161 'Bolter | | 'Bolter Joined: Jul 2005 Posts: 161 | Was this truck 6v and now converted to 12V?
If so you will have to put a voltage reducer right before the sending unit so your 12v gauges will read it correctly.
1946 Chevy Pickip
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#98032 12/02/2006 12:56 AM | Joined: Oct 2006 Posts: 120 Wrench Fetcher | | Wrench Fetcher Joined: Oct 2006 Posts: 120 | zipper, it was always 12v. I'm getting a new fuel sender to test it (just a cheapo from jc whitney) It should be easy as the gas tank is in cab.
Where in MA are you? | | |
#98033 12/02/2006 1:25 AM | Joined: Jul 2005 Posts: 161 'Bolter | | 'Bolter Joined: Jul 2005 Posts: 161 | I am in freetown Ma. Too bad I didn't know you were going to order a new sending unit because I have the sending unit that came with my new gauge set that I didn't use that I could have let you try. Although if you have the same size gas tank that I have in my 46 this may not fit. If it is deeper then it would have worked for you.
Where are you located?
1946 Chevy Pickip
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#98034 12/02/2006 5:42 AM | Joined: Oct 2006 Posts: 120 Wrench Fetcher | | Wrench Fetcher Joined: Oct 2006 Posts: 120 | I'm in Williamsburg.
I used a sending unit from jc whitney before to check a gauge on a 56 buick and ended up leaving it in the tank because that's what was needed and it worked fine. They are adjustable but if it does not fit that's ok -- it's good to have one lying around just in case... | | |
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