Home » Public Forums » GMCnet » [GMCnet] Gmc problems: stuck in Reedsport Oregon
| [GMCnet] Gmc problems: stuck in Reedsport Oregon [message #325707] |
Fri, 03 November 2017 15:16  |
ron preston
Messages: 46
Registered: November 2016
Karma: 1
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Hi all I'm stuck in Reedsport Oregon,
engine missing badly, just installed new ignition module , no change,
checked spark plugs, seem ok. Napa store here dosen't have any till
tomorrow.
if I floor it in the secondary is kicks in then it seems to have some power
I have no tools for working on the carburetor any suggestions ?
Thanks,
Ron Preston 75 Glenbrook
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| Re: [GMCnet] Gmc problems: stuck in Reedsport Oregon [message #325708 is a reply to message #325707] |
Fri, 03 November 2017 15:33  |
emerystora
Messages: 4442
Registered: January 2004
Karma: 13
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Don’t rule out the distributor yet. It could be the coil or the pickup coil. Also check (or just replace) the distributor cap and rotor. It is also possible that your replacement module is bad. I’ve had that happen.
It is more likely that a sudden case of misfiring is electrical rather than fuel.
However, you should replace the fuel filter just in case.
Emery Stora
77 Kingsley
Frederick, CO
> On Nov 3, 2017, at 2:16 PM, ron preston wrote:
>
> Hi all I'm stuck in Reedsport Oregon,
> engine missing badly, just installed new ignition module , no change,
> checked spark plugs, seem ok. Napa store here dosen't have any till
> tomorrow.
> if I floor it in the secondary is kicks in then it seems to have some power
> I have no tools for working on the carburetor any suggestions ?
> Thanks,
> Ron Preston 75 Glenbrook
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
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| Re: [GMCnet] Gmc problems: stuck in Reedsport Oregon [message #325712 is a reply to message #325707] |
Fri, 03 November 2017 16:07 |
sgltrac
Messages: 2797
Registered: April 2011
Karma: 1
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What happened leading up to the malfunction? Stop for gas, pull a huge
grade?
Sully
77 Eleganza 2
Bellevue, Wa
On Fri, Nov 3, 2017 at 1:16 PM, ron preston wrote:
> Hi all I'm stuck in Reedsport Oregon,
> engine missing badly, just installed new ignition module , no change,
> checked spark plugs, seem ok. Napa store here dosen't have any till
> tomorrow.
> if I floor it in the secondary is kicks in then it seems to have some power
> I have no tools for working on the carburetor any suggestions ?
> Thanks,
> Ron Preston 75 Glenbrook
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
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Sully
77 Royale basket case.
Future motorhome land speed record holder(bucket list)
Seattle, Wa.
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| Re: [GMCnet] Gmc problems: stuck in Reedsport Oregon [message #325714 is a reply to message #325707] |
Fri, 03 November 2017 16:32 |
77Royale
Messages: 461
Registered: June 2014
Location: Mid Michigan
Karma: 6
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Start with the easy stuff. Trace every spark plug wire back and wiggle it around, make sure its got good contact,and not crossed with any other wires. replace cap and rotor as mentioned. Look for any wires at all which could have come off or vibrated off. Fuel filter in the carb replacement would not hurt. If you have an inline spark tester, test each plug to make sure you have fire.
77 Royale, Rear Dry Bath. 403, 3.55 Final Drive, Lenzi goodies, Patterson carb and dizzy.
Mid Michigan
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| Re: [GMCnet] Gmc problems: stuck in Reedsport Oregon [message #325716 is a reply to message #325714] |
Fri, 03 November 2017 16:51 |
James Hupy
Messages: 6806
Registered: May 2010
Karma: -62
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I would take off the top of the air cleaner and inspect the choke plate. If
it is straight up and down and the engine is warmed up, that rules out a
stuck choke. Try to move it with light, one finger, pressure. If it moves
easily, that is not your problem either. Move the throttle by pressing the
accelerator and look for fuel sprayed into the primaries. If you see fuel
sprayed, it is PROBABLY NOT your carb. Look at the ignition. New modules
have been known to be bad right out of the box. Another frequently found
ignition problem is the connector that feeds the distributor. The coil
wires can be pushed back inside the cap and even if the plastic connector
is completely snapped into position, the metal to metal contact is faulty.
Take the coil cover off and look. It has educated me more than once.
Jim Hupy
Salem, Or
78 GMC ROYALE 403
On Nov 3, 2017 2:33 PM, "Wayne Rogewski" wrote:
> Start with the easy stuff. Trace every spark plug wire back and wiggle
> it around, make sure its got good contact,and not crossed with any other
> wires. replace cap and rotor as mentioned. Look for any wires at all
> which could have come off or vibrated off. Fuel filter in the carb
> replacement would not hurt. If you have an inline spark tester, test
> each plug to make sure you have fire.
>
>
> --
> 77 Royale, Rear Dry Bath. 403, 3.55 Final Drive, Lenzi goodies, Patterson
> carb and dizzy.
> Mid Michigan
>
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| Re: [GMCnet] Gmc problems: stuck in Reedsport Oregon [message #325751 is a reply to message #325707] |
Sat, 04 November 2017 11:55 |
Bullitthead
Messages: 1411
Registered: November 2013
Karma: 5
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Like Sully said, a bad load of fuel is very possible. Maybe even more so than a mechanical or electrical breakdown. BTDT and have the replaced parts on the shelf as a reward. Also had 12 gallons of backyard fire starter and a check for the parts from the fuel station. Fortunately for me I was not the only victim and they owned up to the defective fuel. Fortunately for them, mine was the cheapest settlement they paid.
Terry Kelpien
ASE Master Technician
73 Glacier 260
Smithfield, Va.
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| Re: [GMCnet] Gmc problems: stuck in Reedsport Oregon [message #325754 is a reply to message #325707] |
Sat, 04 November 2017 12:34 |
James Hupy
Messages: 6806
Registered: May 2010
Karma: -62
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Senior Member |
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On our cross Canada rally, we crossed back into the USA near Buffalo, New
York and stopped at a freeway Sinclair station. Filled up, headed back to
the freeway, stood on it on the on ramp, and my trusty 403 said "No way,
Nohow, sucker". It was not a hot day, but, I switched tanks to aux where I
have a Carter 4070 electric pump wired into the tank switch. It recovered a
bit, and we continued on with a significant amount of balloon footing and
slower driving involved. Engine ran like Crap for the next 200 miles until
I filled up with Chevron Supreme. Got progressively better as more of the
bad Sinclair gas was used up. Once we cleared out all of that swill, engine
ran fine all the rest of the way back to Oregon. Moral: DON'T RULE OUT BAD
GASOLINE.
Jim Hupy
On Nov 4, 2017 10:11 AM, "Terry" wrote:
Like Sully said, a bad load of fuel is very possible. Maybe even more so
than a mechanical or electrical breakdown. BTDT and have the replaced parts
on the shelf as a reward. Also had 12 gallons of backyard fire starter and
a check for the parts from the fuel station. Fortunately for me I was not
the only victim and they owned up to the defective fuel. Fortunately for
them, mine was the cheapest settlement they paid.
--
Terry Kelpien
ASE Master Technician
73 Glacier 260
Smithfield, Va.
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