Re: No start over 1 year later help
Well, three of my four forums have been unreachable for 1/2 hour, but Facebook was ok. SOMEONE broke the %*^**$ internet!
Whoever is messing with the internet, knock it off!
Anyway, the power for the fuel pump comes from the RCM. A lead from the splice block feeds power to the horn relay and fuel pump relay.
On the RCM, fuse 6 is the horn and fuse 5 is the pump.
Here is what you should do:
Turn the key on.
Press the horn button.
If the horn honks, there is power to the RCM - so I want you to measure the voltage at Fuse 6. This will confirm your meter is good and you are doing it right.
(Blade fuses have contacts on them that you can prove with the meter leads without pulling the fuse.) If you don't see power at fuse 6 even when the horn works then you aren't using the meter right or the meter is bad. If you see 12 volts, keep going. The 12 volts will be there anytime the key is on, no neeed to blow the horn while trying to measure the voltage.
Now, measure the voltage at Fuse 5. There has to be voltage there, too. Go to pump - got voltage? No?
You now KNOW that the RCM has power to it. If you measured BOTH sides of fuse 5, then the only things left are:
The relay is bad.
The relay has at least one pin whose solder has failed.
The wire from RCM to pump is bad, and this is PROBABLY a crimp terminal at the RCM or at some interconnection somewhere.
The ground you are hoooking your meter to near the fuel pump is not a ground at all, and you are lying to yourself!
Let me know how you do and remember that fuses 5 and 6 and the horn and fuel pump ONLY have power when the key is on!