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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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#88894 01/19/2007 6:06 AM | Joined: Jan 1970 Posts: 365 Shop Shark | | Shop Shark Joined: Jan 1970 Posts: 365 | I have been running a Runtz in my resurrected '51. The alternator is a delco 10SI. I have a #8 copper wire running from the alternator to the starter battery terminal, so I am not using the ammeter for anything but a power distribution point.
The sender never has read correctly (read 1/4 tank when tank is dry) and has been erratic at times. The fuel gauge quit recently (read empty all the time) so I installed a new sender. The gauge did not work so I 'ohmed' the sender and it reads correctly (30 ohms @ full, 0 ohms @ empty). I then traced the circiut and figured out that the Runtz was not putting any voltage.
What typically goes wrong with these units after 'voltage spikes'? How can I fix this voltage reducer so my gas gauge works again? | | |
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