This might also be the most productive page of this build thread. 
CK5
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1982 C/K 6.0L Caitlyn Mall Crawler (Interior time)
- Thread starter Babaganoosh
- Start date
You may only be getting 13.2 volts max.. I ran mine like this for a bit but the right way is to get a one wire conversion. Then it will be at 14.5 volts where it should be..
I made the mistake of using vatozone knock sensors, they didn't last long. The knock harness is also know to fail, I replaced the harness and the sensors with AC Delco parts and it's been fine the last 100K+
It sits around 14, never been a issue but I also don't have a ton of electronics on it yet. I'll have to look into this.
Yes, I was low on cash at the time of the alternator and couldn't afford the Delco. I will not put anything but those sensors in.
Get the sensor harness too. The stupid big black rubber plugs get hard and won't seal the water out. The plugs come already on the harness.
When you do install the harness take rtv and seal around the perimeter of the plugs and a dollop where the wire goes through the plug. Gm put out a bulletin years back on the gen3 to make that modification happen when installing new sensors and the harness due to excessive water intrusion.
When you do install the harness take rtv and seal around the perimeter of the plugs and a dollop where the wire goes through the plug. Gm put out a bulletin years back on the gen3 to make that modification happen when installing new sensors and the harness due to excessive water intrusion.
Yes of course I remember this back from the Chevy dealer days.
I figured you would but I always put that out there because it's an issue.
Not a problem, someone can always benefit from another wisdom.
That’s good knowledge that I didn’t know.
This is why I post up everything that I do even if it's a bone head mistake.
What’s always fun is reading old build thread posts and realizing how dumb you were. I’ve got three or four build threads now. And everyone I’m like wow what an idiot I was. (Still am).
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Very much agreed, when I started this thread I didn't know how to use a angle grinder.
Just ordered a magnaflow race muffler, need to get to get knock sensors and a wiring harness... Looks like I'm driving this to Vegas Friday morning for the mint 400.
Been driving one of our ranch trucks with bad knock sensor for several years now. I’m pretty sure it defaults to full rich so mileage isn’t great but I’m too lazy to fix it.
No need to fix before your trip, put some 91/93 octane in and let it ride.
No need to fix before your trip, put some 91/93 octane in and let it ride.
Hmm, I would rather just fix it and put 91 in it anyway.
The donor truck I have here has a bad knock sensor.. I put 91 in it and it still reads randomly false knock.. but I’ve yet to hear it.. just run it
Unless I find the time to do the knock sensors before I leave I won't be taking it. I don't want to risk any potential damage or concerns. The engine is noticeably down on power as is and I don't think putting a 91 octane band aid on it is the correct way to go. Even though I'm sure it works just not something I want to do when I have something that will make it perfectly fine that has a radio and a/c
that job is done in under an hour, make some time man!
Yea this and the thing isn’t going to self destruct. It will lean all the timing to the low octane table. It’s fine run it.. you won’t kill it.. especially if it’s only now one sensor.
This came in the mail...
