Help what is what - Wiring

[Wes Harden]

Is this the harness you bought ?

Brothers Trucks EH04880DISTRIBUTR American Auto Wire Engine Harness - SB V8 - Behind Distributor

BROTHERS Trucks is proud to offer American Auto Wire's high-quality wiring harnesses. This harness plugs into the dash harness at the firewall on your truck. Factory Fit engine harnesses are manufactured according to the original General Motors specifications. Each part number is fully...

www.holley.com

 

[JCP]

Question. Should the engine harness run underneath or over the brake booster? Also what should this wire connect to? The fuse block?

 

[JCP]

Here is the wire. Runs next to the red hot to the fuse block on fire wall.

 

[frankin5]

That is the fusible link that feed the the main fuse block. It should be connected to the junction block on the firewall.

 

[JCP]

Ok so I think both these go to the fuse block on the firewall.

 

[JCP]

Is this the harness you bought ?

Brothers Trucks EH04880DISTRIBUTR American Auto Wire Engine Harness - SB V8 - Behind Distributor

BROTHERS Trucks is proud to offer American Auto Wire's high-quality wiring harnesses. This harness plugs into the dash harness at the firewall on your truck. Factory Fit engine harnesses are manufactured according to the original General Motors specifications. Each part number is fully...

www.holley.com

Yes. That's it

 

[frankin5]

you are correct.

 

[JCP]

The harness taped to the vacuum hose goes to the cruise control module. The round thing on a firewall bracket is the "tip in" vacuum switch, which is part of the ESC. That weather-pack you have circled below it should plug into the ignition module wiring (that spark box is under the dash, in front of the glovebox. Chances are that the distributor has been swapped or the module swapped to get by without ESC, but this is also some harness mod that bypasses it.

Do you have the emissions label on the core support? It can shed some light.

 

[JCP]

Harness run over or under the brake booster?

 

[Wes Harden]

Over in plastic sleeve above booster

 

[JCP]

What’s the fix for this. Factory alternator wire is 2 prong. My alternator is 4.

 

[JCP]

Here are the pics

 

[JCP]

Further the spaghetti trail of wires had a main wire from the positive side of the battery to the starter and the alternator. Is that right?

 

[Wes Harden]

ACDelco Professional PT2145 Alternator Conversion Jumper Harness https://a.co/d/crpn90k

Edit make sure that fits. That's is the one I used on my custom built by, @500$k5

 

[Blue85]

Which version of the alternator is it?

I discuss it here and then link to another thread with all the details: https://ck5.com/forums/threads/cs144-alternator-install-question.346354/#post-4260958

 

[JCP]

Which version of the alternator is it?

I discuss it here and then link to another thread with all the details: https://ck5.com/forums/threads/cs144-alternator-install-question.346354/#post-4260958

Ok that’s like reading Chinese. No idea what the different terminals are. Everything is factory except the motor. It’s a newer vortec engine with the front runner serpentine set up.

 

[JCP]

Here is a pic of the back of the alternator.

 

[Blue85]

Are the connector terminals labeled PLFS or PLIS?

 

[JCP]

PED but I need an adapter to convert from 4 prong at the alternator to factory 2 prong plug.

 

[Wes Harden]

I believe @Blue85 wanted the markings from the alternator plug. It appears to be CS130 alternator

edit: PED is generic mfr mold markings