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'72 Chevy Suburban · 11-03-2005, 07:58 AM

I have been having some intermittent problems with my '77 K10 starting
and now it won't start at all. Thank god, because it was getting
frustrating trying to troubleshoot the intermittent problem! I have
confirmed that it is a "no spark" condition and here is what I have done
in the past week or so:

New Rotor
New Module
Different Cap
Different Coil
Ignition switch (replaced about 6 months ago)

I checked voltage at the "battery" connection, with the wire off, and
found 12 volts with the ignition on and 9.5 volts while cranking. Is
that normal?
What else should I check?

11-03-2005, 07:58 AM	#1
'72 Chevy Suburban Chevy's Rock! Join Date: Apr 2004 Location: Lebanon, OH Posts: 448	'77 K10 won't start I have been having some intermittent problems with my '77 K10 starting and now it won't start at all. Thank god, because it was getting frustrating trying to troubleshoot the intermittent problem! I have confirmed that it is a "no spark" condition and here is what I have done in the past week or so: New Rotor New Module Different Cap Different Coil Ignition switch (replaced about 6 months ago) I checked voltage at the "battery" connection, with the wire off, and found 12 volts with the ignition on and 9.5 volts while cranking. Is that normal? What else should I check? __________________ John '59 NAPCO Pickup '70 K10 Pickup 350 '72 C20 Suburban 350 (MIA) '57 Chieftain 455 '68 Firebird Convertible - 400 '68 Catalina Convertible - 400 '85 Vette