1977 f150 351m/400
I've got a new starter.Silinoid.Battery.I turn the key
and I get nothing,not even a noise,but the dash
lights come on.When I jump the silinoid wires it
doesn't turn over but I can hear electricity
flowing.Whats the possible problem?
Check the starter relay. Then do a voltage drop test to the starter to make sure it is getting full power. Make SURE the solenoid is wired correctly. (PS: you can hear electricity flowing? That's like a straight-up super power of something...)
Check the battery cables, the starter connection and the ground. These all have to be absolutely clean, free of corrosion and tight.
When I said I can hear electricity,I meant I can hear like a short or something etc,but I've never been able to find it.
I was teasing lol, but if you hear something like a short or buzzing, that may be a bad relay. Look up where your starter relay is, and swap it out with one of the other relays (make sure it is the same amperage). If a different relay works then you know you had a bad relay.
Starter Solenoid/voltage regulator located of the battery side inner fender well in engine compartment. they are cheap $15 or less.
here is photo:::
I know you said you replaced it but I have never heard of relays for this model and sound like this is the issue unless the battery terminals need replaced instead.
Possibly the solenoid is not correctly hooked up.
Looking for a Used F-150 in your area?
CarGurus has 206,316 nationwide F-150 listings starting at $1,499.
Search Ford F-150 Questions
Ford F-150 Experts
Related Models For Sale
Used Cars For Sale