Newbie Question About Fuel Gauge & Sending Unit
#1
Newbie Question About Fuel Gauge & Sending Unit
Hi,
I recently noticed my fuel gauge acting weird. I have a 1969 Z28 with a dash center fuel gauge-no console. With the key off, the gauge needle sits just above 1/2 full with only about 3 gallons of fuel in the tank. With the key on, the needle moves to way past the full mark. From reading other posts, I get the idea that my problem is either a bad ground, bad sending unit or faulty gauge. I plan on starting by checking out the ground, then moving to the sending unit. Finally the gauge. Here is what I would appreciate advice on:
1) To get an accurate look at the ground, does the fuel tank need to be dropped and if so, is this a straight forward process?
2) I know the tank needs to be dropped to check the sending unit. If it is bad, I would appreciate advice on what type of sending unit to purchase. Ecklers offers both "repro's" for around $50.00 and Gm for about $175.00 if I remember correctly. Any problems with the reproductions?
3) If the guage is bad, can you recommend anyone to repair it?
I live in Southern Oregon (Medford)
Thanks in advance for any help or suggestions you can give.
Larry
I recently noticed my fuel gauge acting weird. I have a 1969 Z28 with a dash center fuel gauge-no console. With the key off, the gauge needle sits just above 1/2 full with only about 3 gallons of fuel in the tank. With the key on, the needle moves to way past the full mark. From reading other posts, I get the idea that my problem is either a bad ground, bad sending unit or faulty gauge. I plan on starting by checking out the ground, then moving to the sending unit. Finally the gauge. Here is what I would appreciate advice on:
1) To get an accurate look at the ground, does the fuel tank need to be dropped and if so, is this a straight forward process?
2) I know the tank needs to be dropped to check the sending unit. If it is bad, I would appreciate advice on what type of sending unit to purchase. Ecklers offers both "repro's" for around $50.00 and Gm for about $175.00 if I remember correctly. Any problems with the reproductions?
3) If the guage is bad, can you recommend anyone to repair it?
I live in Southern Oregon (Medford)
Thanks in advance for any help or suggestions you can give.
Larry
#2
You'll need to drop the tank to do diagnostics at the sending unit. Once the tank is down you can pull the sending unit and test things out. Here's a good tutorial from Ecklers on how to do so.
The GM Fuel Gauge Mystery 1965 & Newer |
I haven't heard of issues with repro sending units, and would probably go that route myself.
The GM Fuel Gauge Mystery 1965 & Newer |
I haven't heard of issues with repro sending units, and would probably go that route myself.
Thread
Thread Starter
Forum
Replies
Last Post