The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > General Truck Forums > Engine & Drivetrain > LSx Swaps

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 05-17-2014, 11:20 AM   #51
ls1nova71
Registered User
 
ls1nova71's Avatar
 
Join Date: Dec 2009
Location: Independence Mo
Posts: 4,118
Re: Checking for spark?

Quote:
Originally Posted by smartass12 View Post
Cuz im in panic mode! Always empties my pockets lol
Dude, SLOW DOWN!!! I understand your impatience, but throwing money at a problem is only for people with more cash than sense. Did you try the starting fluid again? I'm guessing no? If you're going to buy stuff, I would have bought a set of noid lights and checked for injector pulse, but that's in the past now. You could still buy a spark tester or just check it the old fashion way by putting a screwdriver in the boot and holding it close to bare metal on the block. I'm not sure the old plug method you used is the best way. If you still get no spark, and your power and grounds are good, it most likely going to be a crank sensor issue, either the sensor or mosf likely the wiring from it. Know anyone with a good scanner or tuning software you can use to see if the PCM is seeing RPM during cranking? Also, are you absolutley sure you're not loosing power while cranking? Some circuits are hot in 'run' but not during 'crank'. To test this, turn the ignition on, and then jump the solenoid at the starter. MAKE SURE THE TRUCK IS IN PARK AND CANT MOVE SHOULD IT START.
__________________
My '72 short bed build. http://www.ls1tech.com/forums/conver...6-0-4l80e.html

5.3 swap into my RUSTY '71 C10
http://ls1tech.com/forums/conversion...71-c-10-a.html

Last edited by ls1nova71; 05-17-2014 at 11:43 AM.
ls1nova71 is offline   Reply With Quote
Old 05-20-2014, 09:34 AM   #52
smartass12
Registered User
 
smartass12's Avatar
 
Join Date: Jan 2012
Location: orange county, california
Posts: 363
Re: Checking for spark?

so i was in the middle of emailing bill@bp to buy a harness (which still might do cuz of how clean they look) and a huge light bulb went off in my head. dont know how i over looked this as long as i did being that i have messing with the fuse block as much as i have. i remembered i used 2 of the unused powers off the block to feed my harness, ran out to the truck and sure as s#@% the two extras didnt ship with fuses in there slots....2 fuses later.....ITS ALIVE!!!!!!!!! seems to run smooth and idle well....throws no codes as of now...

yes im an idiot for not catching this earlier but want to thank everyone that stuck in there with me and helped out...im sure more help will be need soon. I did upload a startup video to my photobucket but its not there..ill post as soon as i can figure that out
__________________
My 67 stepside build

http://67-72chevytrucks.com/vboard/s...d.php?t=522760
smartass12 is offline   Reply With Quote
Old 05-20-2014, 09:50 AM   #53
smartass12
Registered User
 
smartass12's Avatar
 
Join Date: Jan 2012
Location: orange county, california
Posts: 363
Re: Checking for spark?

__________________
My 67 stepside build

http://67-72chevytrucks.com/vboard/s...d.php?t=522760
smartass12 is offline   Reply With Quote
Old 05-20-2014, 09:52 AM   #54
smartass12
Registered User
 
smartass12's Avatar
 
Join Date: Jan 2012
Location: orange county, california
Posts: 363
Re: Checking for spark?

https://www.youtube.com/watch?v=QaXB1z3o-X4
__________________
My 67 stepside build

http://67-72chevytrucks.com/vboard/s...d.php?t=522760
smartass12 is offline   Reply With Quote
Old 05-20-2014, 12:30 PM   #55
Custom 68
Registered User
 
Custom 68's Avatar
 
Join Date: Nov 2001
Location: Springfield, MO
Posts: 2,930
Re: Checking for spark?

I am glad you got it going.
__________________
Dave
1968 Custom Chevy with turbo charged 5.3 gen III 4l80e swap
1967-71 GMC 3/4 ton long step 4x4 (not sure what year exactly?)
"A good friend will bail you out of jail...but a true friend will be sitting next to you saying "that was frekin awesome".
"If it doesn't fit force it...If it breaks then it needed to be replaced anyway!"
Custom 68 is offline   Reply With Quote
Old 05-20-2014, 01:34 PM   #56
siggyfreud
Registered User
 
siggyfreud's Avatar
 
Join Date: Jun 2012
Location: Portland
Posts: 1,330
Re: Checking for spark?

Nice that it turned out to be something rather simple . The first time I did an injection system I had it die on the road about 5 miles after getting it going. I tore through that think looking at sensor after sensor, and it turned out that the fuel pump fuse simply had blown because I reused a small one on the fly to get it going rather than sizing appropriately.

It happens, just add it to your book of knowledge .
siggyfreud is offline   Reply With Quote
Old 05-20-2014, 07:09 PM   #57
ivorton74
Registered User
 
ivorton74's Avatar
 
Join Date: Nov 2011
Location: South Dakota
Posts: 916
Re: Checking for spark?

congrats man..ur truck looks bada** too
__________________
1983 C10 Silverado 5.3 swap
1974 C10 lwb 5.3 swap(sold)...http://67-72chevytrucks.com/board/sh...d.php?t=614122
2001 BMW 530i 5 speed
2019 Nissan Titan SV Midnight
1979 Datsun 210 4 door
1980 Datsun 120y(back home in Trinidad)
ivorton74 is offline   Reply With Quote
Old 05-21-2014, 07:40 AM   #58
smartass12
Registered User
 
smartass12's Avatar
 
Join Date: Jan 2012
Location: orange county, california
Posts: 363
Re: Checking for spark?

Quote:
Originally Posted by ivorton74 View Post
congrats man..ur truck looks bada** too
thanks
__________________
My 67 stepside build

http://67-72chevytrucks.com/vboard/s...d.php?t=522760
smartass12 is offline   Reply With Quote
Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 05:02 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com