F150 Twins MF gauges dead

[palmerbr]

Need help with troubleshooting dead gauges ... 2xF150 setup on Edgewater 245, both engine gauges (tach/trim/etc) power on fine with ignition on, but speed and fuel gauges won't come on (no lights, no LED, nada)... i've checked wiring, all seems set - also checked for power 12v on the yellow bullet connector into the first gauges (looks like power is daisychained gauge to gauge)... power ok at 12V

anything else i can be checking?... any help appreciated

thanks, BP

[boats.net]

The speedometer pickup hole in gearcase is probably plugged up and needs to be cleaned out. Check that ground is good going to fuel gauge and check fuel sender, may need to replace sender.

[palmerbr]

thanks much - i suspected sender unit as well, will check this weekend.... if the speed tube is plugged, that wouldn't prevent gauge from powering up would it??? how about the sender - wouldn't i still get something on the gauges when i turned on ignition?, LED , ICONs etc.? ... haven't checked the ground yet - seems like a possibility

thanks for the help, i'll let you know what i find