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Reload this Page Orson the 49 GMC ~ Chris C.

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Old 03-12-2021, 12:24 AM   #1
skymangs
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Re: Orson the 49 GMC ~ Chris C.
we FINALLY got the Wiring finished today! We’re hoping for initial startup tomorrow.
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Last edited by Rickysnickers; 03-12-2021 at 09:33 AM. Reason: flipped pics
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Old 03-12-2021, 12:28 AM   #2
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Re: Orson the 49 GMC ~ Chris C.
Wyatt started cutting and patching the floors that Michael half-assed
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Last edited by Rickysnickers; 03-12-2021 at 09:34 AM. Reason: flipped pics
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Old 03-12-2021, 10:45 PM   #3
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Re: Orson the 49 GMC ~ Chris C.
we spent all day trying to start the truck, but were plagued with problems. First a bad starter, then a bad fuel pump. Monday we diagnose it. Wyatt did get the floors done. Monday we will diagnose.
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Last edited by Rickysnickers; 03-13-2021 at 11:43 AM. Reason: flipped photo
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Old 03-20-2021, 03:00 PM   #4
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Re: Orson the 49 GMC ~ Chris C.
Hi did you get it running
what tune file do you have in the computer
my 5.3 had no spark after doing the harness. I found that I put a 2005 tune file and used wiring harness for 99-02
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Old 03-20-2021, 03:54 PM   #5
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Re: Orson the 49 GMC ~ Chris C.
nope. I had LT1swap cut the PCM, just had Brendan do a basic Performance tune.
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Old 03-22-2021, 11:10 PM   #6
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Re: Orson the 49 GMC ~ Chris C.
so my code reader given a PO336 code which says the crank position sensor must be diagnosed. We tried switching it out. There are only 3 wires. The lt blue has 12v key on, the yellow/blk has continuity with ground key on, and the reference Wire has ~5v key on. The adapters from EV6 to Delphi injectors got here yesterday, so we decided to rip out the modified one and install a pre-made with the adapters.
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Last edited by Rickysnickers; 03-23-2021 at 09:38 AM. Reason: flipped pic
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Old 03-23-2021, 01:35 PM   #7
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Re: Orson the 49 GMC ~ Chris C.
You've never been stumped yet, I know you'll get this one figured too!
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Old 03-23-2021, 02:33 PM   #8
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Re: Orson the 49 GMC ~ Chris C.
block grounds connected well?

adjustable sensor mount? need it closer? turn the motor slowly and you should be able to see it go open on a multi meter when the teeth pass by
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Old 03-23-2021, 03:56 PM   #9
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Re: Orson the 49 GMC ~ Chris C.
well I'm feeling pretty stumped and frustrated about now!
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Old 03-23-2021, 04:11 PM   #10
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Re: Orson the 49 GMC ~ Chris C.
do the good signals continue during cranking?
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Old 03-23-2021, 09:51 PM   #11
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Re: Orson the 49 GMC ~ Chris C.
yes, but I have no spark. It makes no sense!
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Old 03-23-2021, 10:17 PM   #12
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Re: Orson the 49 GMC ~ Chris C.
The new harness doesn’t seem to have any PRND wiring so we are in the middle of adding 5 circuits to the harness. Needles to say, but I won’t be buying from them again! Tomorrow we hope to get the cab on for the last time.
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Last edited by Rickysnickers; 03-24-2021 at 10:31 AM. Reason: flipped pic
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Old 03-24-2021, 09:46 PM   #13
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Re: Orson the 49 GMC ~ Chris C.
We finished up the fuel system and bolted everything down. we also finished the PRND circuits and re-covered the harness. Put the harness through the firewall pass through, and mounted the cab.
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Last edited by Rickysnickers; 03-25-2021 at 10:24 AM. Reason: flipped pic
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Old 03-25-2021, 07:48 AM   #14
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Re: Orson the 49 GMC ~ Chris C.
that always feels awesome, makes it a truck vs a pile of parts.
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Old 03-25-2021, 08:22 AM   #15
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Re: Orson the 49 GMC ~ Chris C.
you bet
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Old 03-25-2021, 09:28 PM   #16
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Re: Orson the 49 GMC ~ Chris C.
Sure is! Here’s a link https://www.ebay.com/itm/SPECTRE-816...72.m2749.l2648
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Old 03-26-2021, 09:00 AM   #17
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Re: Orson the 49 GMC ~ Chris C.
Thanks
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Old 03-26-2021, 09:20 PM   #18
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Re: Orson the 49 GMC ~ Chris C.
Today JP ground down the welds on the roofpatch, a job that Alex never finished. Took pretty much all day, in fact we have to finish the back on Monday.
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Last edited by Rickysnickers; 03-27-2021 at 10:51 AM. Reason: flipped pics
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Old 03-29-2021, 11:39 PM   #19
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Re: Orson the 49 GMC ~ Chris C.
1. We have a faceplate, but where are all the gauges?
2. Here is your new speedometer prior to Modification
3. The O2 sensors were a real PITA!
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Old 03-29-2021, 11:43 PM   #20
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Re: Orson the 49 GMC ~ Chris C.
Then we put your Front clip back together.
Finally we welded pedestals to the floor for the seat to Mount to, and then we ran out of gas!
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Old 03-30-2021, 07:53 AM   #21
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Re: Orson the 49 GMC ~ Chris C.
Quote:
Originally Posted by skymangs View Post
Then we put your Front clip back together.
Finally we welded pedestals to the floor for the seat to Mount to, and then we ran out of gas!
that is the worst! actually reminds me i need to fill my spare cylinder and am currently running my spare spool of wire

super interested to see what you do with the old gauge face.

also ... i spy a wagon!
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Old 03-30-2021, 01:06 PM   #22
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Re: Orson the 49 GMC ~ Chris C.
super cool sir!
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Old 03-30-2021, 10:44 PM   #23
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Re: Orson the 49 GMC ~ Chris C.
we got the PCM mounted and wired today
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Last edited by Rickysnickers; 03-31-2021 at 10:18 AM. Reason: flipped pics
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Old 03-30-2021, 10:47 PM   #24
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Re: Orson the 49 GMC ~ Chris C.
There was some bondo cracking
So we removed all the bondo
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Last edited by Rickysnickers; 03-31-2021 at 10:20 AM. Reason: flipped pics
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Old 03-30-2021, 10:48 PM   #25
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Re: Orson the 49 GMC ~ Chris C.
We got the Front clip in the basecoat
And the glovebox door has a huge dent in it, I’d like to replace it
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Last edited by Rickysnickers; 03-31-2021 at 10:21 AM. Reason: flipped pics
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