Rod:
More likely that a switch in the seatbelt interlock system is
getting flakey. Try disconnecting the occupant sensors next time this
occurs. You can do this by flipping the seats forward to expose the
wiring under the seats. There is a pair of wires under each seat that
can be disconnected by disconnecting the plug in the wires that should
be visible.
When the "Fasten Seat Belt" light comes on, the module thinks
that there is an occupant who has not fastened his/her belt. Either the
belt switch is open, or the passenger sensor is shorted. More likely the
former.
Vance
-----Original Message-----
From: owner-6pack@autox.team.net [mailto:owner-6pack@autox.team.net] On
Behalf Of Rod Anderson
Sent: July 04, 2006 10:49 AM
To: Six Pack
Subject: Intermittant starting problem
All:
Our planned Saturday cruise along rural Michigan backroads was cut short
when the Old Blue (1974, CF18407U) refused to start; showed the "fasten
seat belt" light and buzzer, but no starter action, not even a click.
No problem, probably the battery. Charged the battery overnight; the
starter engaged the first try. Wouldn't work for subsequent trys. Time
to break out Dan Master's invaluable book. Using his diagnostic
procedure (connecting from the + terminal to the S terminal on the
solenoid), I was able to confirm the starter and solenoid were OK .
Then, tracked down the starter relay (which tooks some doing). Cleaned
it up a bit to identify the wire color codes in preparation for the next
step in Dan's diagnostics. On a hunch, tried the starter at that point,
and it worked fine. Tried it several times subsequently and still works
OK.
"It fixed itself." Needless to say, this make me nervous about shutting
the engine off when not safely in the garage. I have now cleaned up the
terminals on the starter relay (and starter itself), but I'm still a
little concerned that there's something else going on. Any thoughts?
This is a '74, which has the seat belt interlock and starter relay.
Rod Anderson
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