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Codes 59, 67, 73 and 82, transmission issue after replacing the wiring harness?

Tiny
JOEL HDZ TINAJERO
  • MEMBER
  • 1994 CHEVROLET 1500
  • 5.7L
  • V8
  • 2WD
  • AUTOMATIC
  • 200,000 MILES
Okay, I have been having problems after the transmission wiring was all toast. So, I replaced that harness. After that it wouldn't start well sometimes but no most times. So I check that wiring and the purple wire was wrong I mean I just did the purple wire in the other purple wire I hope u understand what I'm saying. Well wow truck start but acting like out of fuel then works fine then start smoking after 20 min running and then shut off. This whole time the battery voltage was low like a quarter on gauge. New battery, new alternator. After the truck shut off it would start after charging battery. Battery full truck start but slow. Today it started good but battery voltage was dropping and then truck shut off. It has code 59, 67, 73 and 82. Any help will be appreciated.
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Wednesday, January 4th, 2023 AT 1:14 PM

10 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,702 POSTS
Yep, it sounds like the ground strap is not connected or missing, this will be the big ground strap going from the frame to the engine/transmission. Check out the images (below). Please let us know what happens.
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Thursday, January 5th, 2023 AT 11:13 AM
Tiny
JOEL HDZ TINAJERO
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  • 15 POSTS
Thanks for that information. I will get to it in a minute. A question, is it okay if a have a thick wire from battery negative to top of engine and another one to the frame?
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Friday, January 6th, 2023 AT 4:44 PM
Tiny
KEN L
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Yes, it should be good. The idea is to have the battery grounds to the engine and frame with a wire or cable the size of the battery cable.
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Saturday, January 7th, 2023 AT 11:10 AM
Tiny
JOEL HDZ TINAJERO
  • MEMBER
  • 15 POSTS
Okay. I unplug battery negative wire then with a test light one end on negative wire and other end on negative post the test light is shining good is it supposed to do that? I remove the fuse one by one to see if the test light goes off. Pulled all of them and the light didn't go off. I did the same with positive wire and the same test light went on. What to do? This has been on for a while now. Thanks, any help will be appreciated.
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Saturday, January 7th, 2023 AT 6:23 PM
Tiny
KEN L
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  • 47,702 POSTS
Yes, the light comes on when there is a drain, did you have the doors open when you were doing the test?

This guide can help:

https://www.2carpros.com/articles/car-battery-dead-overnight

But this is getting off topic so to continue with this particular problem, please post your new question here, you must be logged in.

https://www.2carpros.com/questions/new

Did we get the battery cable issue corrected?
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Sunday, January 8th, 2023 AT 6:13 PM
Tiny
JOEL HDZ TINAJERO
  • MEMBER
  • 15 POSTS
Yes, sir okay. I was getting 4 codes 59, 67, 73 and 82. The last 3 off and on the one that always stay is 67 but no service light on, but when I pull codes 67 is there. Voltage on gauge got a little better, but when I start truck the starter stays on after ignition is off and the starter sounds like squealing, lol. What do I need to do I miss my truck, lol.
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Monday, January 9th, 2023 AT 2:12 PM
Tiny
KEN L
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  • 47,702 POSTS
If the battery is low, it will cause the starter to stay engaged. let's do a load check by following this guide. Code 67 uis 67 - AC pressure sensor circuit or a/c clutch circuit failure so this will not affect the engine running.

https://www.2carpros.com/articles/car-battery-load-test

Please go over this guide and report back.

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Tuesday, January 10th, 2023 AT 12:01 PM
Tiny
JOEL HDZ TINAJERO
  • MEMBER
  • 15 POSTS
Excuse me sir no disrespect but my book says dtc 67 torque converter clutch(tcc) solenoid circuit fault.
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Tuesday, January 10th, 2023 AT 1:38 PM
Tiny
JOEL HDZ TINAJERO
  • MEMBER
  • 15 POSTS
Battery is a year old, new starter, new alternator new positive and negative battery wires.
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Tuesday, January 10th, 2023 AT 1:41 PM
Tiny
KEN L
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Okay, sometimes the info gets mixed up.

https://www.google.com/search?q=code+67+obd1&rlz=1C1CHBF_enUS1035US1035&oq=code+67+obd1&aqs=chrome..69i57j0i22i30.10495j0j7&sourceid=chrome&ie=UTF-8

I think we need to check the wiring and the connections.

Here is a guide to help and the wiring diagrams so you can do the testing:

https://www.2carpros.com/articles/how-to-check-wiring

Check out the images (below). Let us know what happens and please upload pictures or videos of the problem.
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Wednesday, January 11th, 2023 AT 11:32 AM

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