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Author Topic: No spark! Tried a new coil, still no spark  (Read 68655 times)

Offline buddy84GMC

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Re: No spark! Tried a new coil, still no spark
« Reply #30 on: April 28, 2008, 07:30:47 pm »
The brighter yellow connector is the pick up wire connector; it has the 3 prongs in the male and female ends.  The new pick up coil is the one on the table with the control module.  The new pick up coil would not let me plug the modified connector (darker yellow) into it. 
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1984 GMC K1500 8" lift, 39" MT Baja Belted tires, 400 small block
2006 GMC Sierra 1500 SLT 4x4 L33 5.3L Special Edition
1967 Lincoln Continental Coupe Hot Rod, 462 big block

Offline Blue 82

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Re: No spark! Tried a new coil, still no spark
« Reply #31 on: April 28, 2008, 08:13:16 pm »
Take a small screwdriver or awl and push the female connectors out of the plastic piece on the new one (try pushing them out of the old one first)

now you can put them in the old plastic piece
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82 stepside 2wd 355/th350/3.08 posi

Offline buddy84GMC

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Re: No spark! Tried a new coil, still no spark
« Reply #32 on: April 28, 2008, 08:15:32 pm »
Quote from: Blue 82 on April 28, 2008, 07:17:30 pm
Try this test
hook up a wire to the disty
using a female spade connector
connect to your battery

now try it


I tried it all.  I tested the new pick up coil and did the same test on the old one...no response.  I guess the wire may have split inside the insulation.  It would not make a complete circuit so it must be broke.  I never got that hesitation on and off symptom that usually is the result of this happening...I will have to replace it and see.  Thanks a lot for the help.  Let me know about the 3 prong set up in my photos.  Hopefully the correct pick up coil connector is available. 
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1984 GMC K1500 8" lift, 39" MT Baja Belted tires, 400 small block
2006 GMC Sierra 1500 SLT 4x4 L33 5.3L Special Edition
1967 Lincoln Continental Coupe Hot Rod, 462 big block

Offline VileZambonie

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Re: No spark! Tried a new coil, still no spark
« Reply #33 on: April 29, 2008, 05:10:16 am »
You bought the wrong pick up coil unless you are going to install a 4 pin module.
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74 GMC, 75 K5, 84 GMC, 85 K20, 86 k20, 79 K10

Offline buddy84GMC

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Re: No spark! Tried a new coil, still no spark
« Reply #34 on: April 29, 2008, 05:59:25 am »
Yeah, so my question is...if I bought a new module, can I buy a 4 pin and everything work out ok.  There is still that first connector that has 3 pins that plugs into the pick up before it plugs into the module.  I will get the correct 3 pin pick up coil first and try that.  If I still have problems after that, I will wonder if bypassing the ESC caused anything to not work even though I followed the directions to a T.  It will take me a couple days to get to my truck, but I will post what happens.  Thanks a lot
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1984 GMC K1500 8" lift, 39" MT Baja Belted tires, 400 small block
2006 GMC Sierra 1500 SLT 4x4 L33 5.3L Special Edition
1967 Lincoln Continental Coupe Hot Rod, 462 big block

Offline Captkaos

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Re: No spark! Tried a new coil, still no spark
« Reply #35 on: April 29, 2008, 11:20:48 am »
Bypassing the ESC only eliminated the computer.  It shouldn't make a difference in functioning.
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Offline buddy84GMC

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Re: No spark! Tried a new coil, still no spark
« Reply #36 on: April 29, 2008, 06:10:47 pm »
Unless the computer went bad, but in this case it must not have since it did not work after bypassing the ESC.  Headed down to see if the pick up coil I need is the original style from an 84 GMC and my truck had a 305 originally. 
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1984 GMC K1500 8" lift, 39" MT Baja Belted tires, 400 small block
2006 GMC Sierra 1500 SLT 4x4 L33 5.3L Special Edition
1967 Lincoln Continental Coupe Hot Rod, 462 big block

Offline 78 Chevyrado

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Re: No spark! Tried a new coil, still no spark
« Reply #37 on: May 03, 2008, 09:08:33 pm »
Words of wisdom I learned the hard way...  If the module checks out bad, it's bad.  But if the module checks out good, it may still be bad. 
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Offline buddy84GMC

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Re: No spark! Tried a new coil, still no spark
« Reply #38 on: May 04, 2008, 08:03:09 pm »
Quote from: 78 Chevyrado on May 03, 2008, 09:08:33 pm
Words of wisdom I learned the hard way...  If the module checks out bad, it's bad.  But if the module checks out good, it may still be bad. 

Thanks.  I think I am just going to pull it and replace the pick up anyways, and if that still does not work, I will replace the module.  I still have no reading when I hook my meter up to the pick up so it should be replaced anyways.  Looks like a 24 year old 85,000 mile pick up.  Saves me hassle in the future if its even slightly worn out.  Thanks
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1984 GMC K1500 8" lift, 39" MT Baja Belted tires, 400 small block
2006 GMC Sierra 1500 SLT 4x4 L33 5.3L Special Edition
1967 Lincoln Continental Coupe Hot Rod, 462 big block

Offline buddy84GMC

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Re: No spark! Tried a new coil, still no spark
« Reply #39 on: May 10, 2008, 09:08:18 pm »
Finally got to work on the distributor.  Replaced the pick up coil and found that the tape wrap that holds the wires to the pick up itself was dry rotted and completely flaked off.  That being said, I tested the old pick up and no reading...just got to find my 4 coil screws and I'm set.  I also found out the dist. was installed 180 degrees the wrong way.  I fixed that too and have to redo the wires.  Can't believe it was mickey moused like that.  The whole truck was rigged up like it was made from stolen parts from 4 different kinds of intake bolts to backwards valve cover to a bad valve job with no rollers...and now this!  Glad I got it all taken care of as I found it.  Hopefully not too much more will surprise me.  Thanks for all the help.  If I get it running, I will post it and if I dont...look for a new post!!!
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1984 GMC K1500 8" lift, 39" MT Baja Belted tires, 400 small block
2006 GMC Sierra 1500 SLT 4x4 L33 5.3L Special Edition
1967 Lincoln Continental Coupe Hot Rod, 462 big block

Offline Fordeatinz71

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Re: No spark! Tried a new coil, still no spark
« Reply #40 on: May 14, 2008, 10:54:40 am »
well, good luck man...i'm sure you'll get it taken care of...
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Offline buddy84GMC

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Re: No spark! Tried a new coil, still no spark
« Reply #41 on: May 18, 2008, 04:32:20 pm »
Thanks for the help.  I got spark, but no start.  The coil is grounding out for some reason; I have a blue spark going to the coil where the BAT wires are.  I checked for bad wires, etc.  Any ideas what is causing it to ground to the coil?  Thanks.  I stopped trying so I dont ruin the coil
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1984 GMC K1500 8" lift, 39" MT Baja Belted tires, 400 small block
2006 GMC Sierra 1500 SLT 4x4 L33 5.3L Special Edition
1967 Lincoln Continental Coupe Hot Rod, 462 big block

Offline Blue 82

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Re: No spark! Tried a new coil, still no spark
« Reply #42 on: May 18, 2008, 06:02:26 pm »
Did you replace the button under the coil?

back on page 1, I recomended one of these...
you may want to take a look
http://cgi.ebay.com/ebaymotors/SBC-BBC-CHEVY-HEI-DISTRIBUTOR-RED-8908-R_W0QQcmdZViewItemQQcategoryZ33690QQihZ015QQitemZ250241458008
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82 stepside 2wd 355/th350/3.08 posi

Offline buddy84GMC

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Re: No spark! Tried a new coil, still no spark
« Reply #43 on: May 18, 2008, 07:31:51 pm »
Quote from: Blue 82 on May 18, 2008, 06:02:26 pm
Did you replace the button under the coil?

back on page 1, I recomended one of these...
you may want to take a look
http://cgi.ebay.com/ebaymotors/SBC-BBC-CHEVY-HEI-DISTRIBUTOR-RED-8908-R_W0QQcmdZViewItemQQcategoryZ33690QQihZ015QQitemZ250241458008

I did replace it last year, but if it was bad would I be getting spark?  The spring on it is good and it makes contact from what I can tell.  If I bought that distributor you mentioned, then I would have to take the whole ESC system off and drain he antifreeze due to some valve or switch near he starter and I would be out $40 on my new coil and pick up.  I will get to the bottom of this hopefully without buying a new distributor since I have to take the ESC completely out to install the one you recommended.  Thanks a lot though and I will not pitch that idea, I just know it can run without that for now...just need to find time to figure it out.  thanks again
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1984 GMC K1500 8" lift, 39" MT Baja Belted tires, 400 small block
2006 GMC Sierra 1500 SLT 4x4 L33 5.3L Special Edition
1967 Lincoln Continental Coupe Hot Rod, 462 big block

Offline VileZambonie

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Re: No spark! Tried a new coil, still no spark
« Reply #44 on: May 18, 2008, 07:57:29 pm »
You have spark but the coil is grounded?  ??? Very confused as to what it's doing.
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                         /  _ _ _\_
              ⌠ŻŻŻŻŻ'   [☼===☼]
              `()_);-;()_)--o--)_)

74 GMC, 75 K5, 84 GMC, 85 K20, 86 k20, 79 K10
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