77 GMC ROYAL 455 won't turn over to start

ron murray

New member
Jan 30, 2013
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I have never had a problem starting my 77 Royale w/ electric fuel pump.
Today w/ fully charged battery (the radio & headlights work) the engine
won't turn over to fire to start. It seems like there is a poor connection
somewhere, selonoid?, isolater? or gound??

Could this be something simple or complated? It has never done this before,
itun the key and flip the electric fuel pump switch and it would start
right up.

Thanks for your help!
Ron Murray
Seattle, WA
 
I would turn the balancer to check the engine is not seized up. If it
turns, then I'd check the starter. You may need a new one.

Cesar Carrasco
Riverside, CA
23' 1973 Sequoia
26' 1974 Glacier

> I have never had a problem starting my 77 Royale w/ electric fuel pump.
> Today w/ fully charged battery (the radio & headlights work) the engine
> won't turn over to fire to start. It seems like there is a poor connection
> somewhere, selonoid?, isolater? or gound??
>
> Could this be something simple or complated? It has never done this before,
> itun the key and flip the electric fuel pump switch and it would start
> right up.
>
> Thanks for your help!
> Ron Murray
> Seattle, WA
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
 
Make sure all your ground to the starter are tight and clean as well the
the connections to the relay.

On Sun, Sep 9, 2018 at 9:29 PM Cesar Carrasco
wrote:

> I would turn the balancer to check the engine is not seized up. If it
> turns, then I'd check the starter. You may need a new one.
>
> Cesar Carrasco
> Riverside, CA
> 23' 1973 Sequoia
> 26' 1974 Glacier
>
>

>
> > I have never had a problem starting my 77 Royale w/ electric fuel pump.
> > Today w/ fully charged battery (the radio & headlights work) the engine
> > won't turn over to fire to start. It seems like there is a poor
> connection
> > somewhere, selonoid?, isolater? or gound??
> >
> > Could this be something simple or complated? It has never done this
> before,
> > itun the key and flip the electric fuel pump switch and it would start
> > right up.
> >
> > Thanks for your help!
> > Ron Murray
> > Seattle, WA
> > _______________________________________________
> > GMCnet mailing list
> > Unsubscribe or Change List Options:
> > http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
> >
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>

--
Jim Kanomata
Applied/GMC, Newark,CA
jimk
http://www.appliedgmc.com
1-800-752-7502
 
There are several things that commonly cause this. We need to narrow it down to an area.

First, turn on the head lights and try to start it. Do the head lights dim when the key is turned to start?

Second, turn the headlight off and try to start it a few times. Do you hear the starter click each time you turn the key to the start position?

Third, turn the key to start and hold it there. Move the gear selector up and down slightly. Does anything change?

Based on your answers, we can direct you to an area like dirty / bad connection cables, bad solenoid, bad starter, bad neutral safety switch bad
ignition switch, loose or broken wires, etc.

We just need more information before guessing on which way to send you.

Ken B.
--
Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
 
First, try this simple trick. Tilt the steering wheel completely towards
the windshield. Try again to start the coach. If it starts, you have found
your problem. The start switch is out of adjustment or in need of
replacement. It is located on the base of the steering column, and has an
operating rod that extends down the colum from the key mechanism, which
also might be broken.
Jim Hupy
Salem, Or
78 GMC ROYALE 403

> There are several things that commonly cause this. We need to narrow it
> down to an area.
>
> First, turn on the head lights and try to start it. Do the head lights
> dim when the key is turned to start?
>
> Second, turn the headlight off and try to start it a few times. Do you
> hear the starter click each time you turn the key to the start position?
>
> Third, turn the key to start and hold it there. Move the gear selector up
> and down slightly. Does anything change?
>
> Based on your answers, we can direct you to an area like dirty / bad
> connection cables, bad solenoid, bad starter, bad neutral safety switch bad
> ignition switch, loose or broken wires, etc.
>
> We just need more information before guessing on which way to send you.
>
> Ken B.
> --
> Ken Burton - N9KB
> 76 Palm Beach
> Hebron, Indiana
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>