Ok, I know this has been discussed at length on many forums/ pages there never seems to be responses by the OP's how they fixed the issue. Here is my situation:
1974 Satellite. Car had been sitting for 10 years. Started and ran good. Fuel gauge was buried below "E". Temp gauge would slighty move towards "C". Fuel tank had rust in it so I replaced that as well as the sending unit. Cleaned up the contact points on the grounding strap and reattached at the tank. Fuel gauge would not move. Did a test by grounding the sending unit plug and fuel gauge never even budged. Next, held my test light on the temp sensor on the intake. The light pulses which I assume means the voltage limiter is working? Voltage shows it jumping from 0 to 5.2ish volts when pulsing. Next day, get in the car and the damn temp gauge does not budge a bit! Changed out the temp sender and.....nothing. Get this, last night I go for a ride and the fuel gauge starts working! It is full but only reads a quarter tank. Still no temp gauge but there are voltage pulses at the sending unit. What the heck is going on here!?
1974 Satellite. Car had been sitting for 10 years. Started and ran good. Fuel gauge was buried below "E". Temp gauge would slighty move towards "C". Fuel tank had rust in it so I replaced that as well as the sending unit. Cleaned up the contact points on the grounding strap and reattached at the tank. Fuel gauge would not move. Did a test by grounding the sending unit plug and fuel gauge never even budged. Next, held my test light on the temp sensor on the intake. The light pulses which I assume means the voltage limiter is working? Voltage shows it jumping from 0 to 5.2ish volts when pulsing. Next day, get in the car and the damn temp gauge does not budge a bit! Changed out the temp sender and.....nothing. Get this, last night I go for a ride and the fuel gauge starts working! It is full but only reads a quarter tank. Still no temp gauge but there are voltage pulses at the sending unit. What the heck is going on here!?