I thought it might be the fuel sending unit itself but it wasn't can you help??
GMC Q&AAsk Your Question
2004 GMC Sierra 1500 Question: My fuel guage constantly reads low fuel even when the tank is full, i put a new fuel
Answer #1pushrod August 21, 2012, 20:09Master
Faulty wire(s) from tank sender /ground or instrument panel. Scanner can sweep
guages to check if all are working.
Answer #2Greg's Orange Auto (14628 Answers) , Orange, CA - (714) 361-9386globalhelper August 22, 2012, 06:23Master
yes have a sweep test on all gauges