69 c10 wont fire up - The 1947 - Present Chevrolet & GMC Truck Message Board Network

ooimpalaoo · 01-12-2018, 08:11 PM

ok so im back ... my poor 69 wont fire it was fine 2 weeks ago. its a inline 250 with HEI i took the coil out and put a meter on it both the primary and secondary coil ar good. i have power going to the cap. ran i hot wire right to it from the batt just to make sure. wtf is going on. what should i check next . took a plug out had my gf turn the truck over as i grounded the threads no spark. what is going on? please please help me . i want back in my truck .

demian5 · 01-12-2018, 08:13 PM

Is the distributor spinning?
Is the battery weak?
Is the cap old and nasty? Cracked?
Grounds for engine are good?
Burned up rotor?

For the heck of it, pour a little gas down the carb and see if it wants to start?

bill3rail · 01-12-2018, 09:26 PM

Points & condenser or electronic ignition? Which electronic?

One plug has no spark or all of them? <-- Quite important!

Turn it over in the dark to see if any wires are grounding out.

Bill

ooimpalaoo · 01-12-2018, 09:36 PM

i only have a month to get this done. ill check all for spark tomorrow. and im sure its just a delco remy cap and coil. nothing fancy.i put fuel in the carb ...nothing. cap is good grounds are good. its not burnt up.

Mike C · 01-12-2018, 10:04 PM

If you are running an HEI should always keep a spare module around IMO. It is the component most likely to fail and easy enough to swap and test.

rockyrivermark · 01-12-2018, 10:12 PM

That's my guess too. Ignition module.
Easiest way to check spark is throw a timing light on a few of the wires.

**Boog** · 01-12-2018, 10:24 PM

The module is the usual culprit and on occasion the pickup coil fails. In all of my years I have only had one pickup coil fail. Nephew said that was the problem with mine. I said nooooooo. Yup. It was. You have to disassemble the dist to replace it too.

**VetteVet** · 01-13-2018, 02:39 PM

See your replies in the electrical forum.
It isn't a good idea to post in more than one section about the same issue, it leads to confusion for forum members and besides it's against forum rules.

ooimpalaoo · 01-14-2018, 11:41 PM

oh sorry i didnt know that. just to let anyone know who has to deal with this ever.. the problem was the coil. like it is most of the time. also when i was removing the old one i noticed that the ground wire was in the wrong location. the coil is held on by four screws, ground wire is under one of them,under the coil is a metal strap that the one screw goes in. my truck is now running great again thanx for everything. again sorry for the posting in more then one fourm

**VetteVet** · 01-15-2018, 01:49 AM

Darn I thought about the ground on the coil but you said that it had just quit running so the module seemed to be the culprit. You got a lot of good ideas anyhow.

01-12-2018, 08:11 PM	#1
ooimpalaoo Registered User Join Date: Jul 2011 Location: Vernon BC Canada Posts: 287	69 c10 wont fire up ok so im back ... my poor 69 wont fire it was fine 2 weeks ago. its a inline 250 with HEI i took the coil out and put a meter on it both the primary and secondary coil ar good. i have power going to the cap. ran i hot wire right to it from the batt just to make sure. wtf is going on. what should i check next . took a plug out had my gf turn the truck over as i grounded the threads no spark. what is going on? please please help me . i want back in my truck .

01-12-2018, 08:13 PM	#2
demian5 Registered User Join Date: Aug 2016 Location: Lake Forest, CA Posts: 2,177	Re: 69 c10 wont fire up Is the distributor spinning? Is the battery weak? Is the cap old and nasty? Cracked? Grounds for engine are good? Burned up rotor? For the heck of it, pour a little gas down the carb and see if it wants to start? __________________ "Work hard, use your vacation days." 1970 C15 GMC Long Bed 1986 C20 Scottsdale 1983 K2500 Sierra Classic Suburban 6.2 Instagram: C10sofOC

01-12-2018, 09:26 PM	#3
bill3rail Registered User Join Date: Jul 2013 Location: LI, NY 11801 Posts: 1,140	Re: 69 c10 wont fire up Points & condenser or electronic ignition? Which electronic? One plug has no spark or all of them? <-- Quite important! Turn it over in the dark to see if any wires are grounding out. Bill __________________ 1970 C10 8' Fleetside, L6 250, 3 on the Tree. The most basic of pickup trucks!

01-12-2018, 09:36 PM	#4
ooimpalaoo Registered User Join Date: Jul 2011 Location: Vernon BC Canada Posts: 287	Re: 69 c10 wont fire up i only have a month to get this done. ill check all for spark tomorrow. and im sure its just a delco remy cap and coil. nothing fancy.i put fuel in the carb ...nothing. cap is good grounds are good. its not burnt up.

01-12-2018, 10:04 PM	#5
Mike C Registered User Join Date: Dec 1999 Location: Austin, TX, USA Posts: 7,723	Re: 69 c10 wont fire up If you are running an HEI should always keep a spare module around IMO. It is the component most likely to fail and easy enough to swap and test. __________________ 44 Willys MB 52 M38A1 64 Corvette Coupe 68 Camaro 'vert LT1 & TH700 69 Z/28 355 12.6's @110 69 Chevy Short Step 4 1/2"/7" drop 72 Jimmy 4WD 4spd 4" & 35's 02 GMC 2500HD 4x4 Duramax

01-12-2018, 10:12 PM	#6
rockyrivermark Registered User Join Date: Apr 2011 Location: Fairview Park, Ohio Posts: 1,031	Re: 69 c10 wont fire up That's my guess too. Ignition module. Easiest way to check spark is throw a timing light on a few of the wires. __________________ My build page http://67-72chevytrucks.com/vboard/s...d.php?t=764662 My cabinet building site http://www.cbcabinets.com

01-12-2018, 10:24 PM	#7
Boog laying low Join Date: Mar 2001 Location: Searcy, Ark. USA Posts: 13,441	Re: 69 c10 wont fire up The module is the usual culprit and on occasion the pickup coil fails. In all of my years I have only had one pickup coil fail. Nephew said that was the problem with mine. I said nooooooo. Yup. It was. You have to disassemble the dist to replace it too. __________________ Boog 69 Chevy stepside, 358/T350, 4.11 posi, 4.5/4 drop, rallys, poboy driver primer is finer 91 Chevy sportside, Tahoe, Yukon & GMC Crewcab All GM..'nuff said. I stand for the flag and kneel at the cross

01-13-2018, 02:39 PM	#8
VetteVet Msgt USAF Ret Join Date: Jan 2005 Location: Kalamazoo, Michigan Posts: 8,717	Re: 69 c10 wont fire up See your replies in the electrical forum. It isn't a good idea to post in more than one section about the same issue, it leads to confusion for forum members and besides it's against forum rules. __________________ VetteVet metallic green 67 stepside 74 corvette convertible 1965 Harley sportster 1995 Harley wide glide Growing old is hell, but it beats the alternative.

01-14-2018, 11:41 PM	#9
ooimpalaoo Registered User Join Date: Jul 2011 Location: Vernon BC Canada Posts: 287	Re: 69 c10 wont fire up oh sorry i didnt know that. just to let anyone know who has to deal with this ever.. the problem was the coil. like it is most of the time. also when i was removing the old one i noticed that the ground wire was in the wrong location. the coil is held on by four screws, ground wire is under one of them,under the coil is a metal strap that the one screw goes in. my truck is now running great again thanx for everything. again sorry for the posting in more then one fourm

01-15-2018, 01:49 AM	#10
VetteVet Msgt USAF Ret Join Date: Jan 2005 Location: Kalamazoo, Michigan Posts: 8,717	Re: 69 c10 wont fire up Darn I thought about the ground on the coil but you said that it had just quit running so the module seemed to be the culprit. You got a lot of good ideas anyhow. __________________ VetteVet metallic green 67 stepside 74 corvette convertible 1965 Harley sportster 1995 Harley wide glide Growing old is hell, but it beats the alternative.



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