Printable View
The truck is an 04 that had a v6. The v6 was pulled and a v8 is now in its place. Everything is working fine except for the gas gauge works backwards and the cruise no longer works. What did I miss in the swap or any help to as what I need to change to make it work again would be awsome . Im lazy and enjoyed my cruise.
shawn, you kept it a DBC right???? i dont remember.
No sir. It's a dbw just like yours.
did you check the TACQuote:
Originally Posted by ecld_07
Yep. Swapped it multiple times with the extras I have
It is probably because the 4.3L uses a cruise contol module and the V8 doesn't. The wires are in different positions in the electrical center. I can check out the diagrams once I get home after this weekend if you don't find them before then.
Yes please do. Thanks. I'll see what I can find out to.
I love seeing issues with these swaps. FML.
Make sure at the TAC module you are getting:
C1 - 6 : Hot with brake
C1- 14 : Hot with key in run, cruise switch ON
C1- 4 : Hot with key in run, SET/COAST switch pressed
C1- 5 : Hot with key in run, ACCEL/RESUME switch pressed.
If not let me know which ones you are missing and we will track them down
The fuel gauge problem is due to this:
The LU3 (4.3L), L59 and LB7 use Full= 25 ohm Empty = 40 ohm
All other engines use Full= 40ohm, Empty = 25 ohm
You have 2 options:
1. Change the sending unit out for the correct one.
2. Reverse the table in the tune. (easiest option by far if you have a way to tune)
I confirmed this by looking at a L59 and LM7 tune. The fuel level tables are inverse of each other.
Which plug am I checking those wires at? Thanks btw
C1---connector 1 on the TAC. Gray with 16 pins
Alright. I'll check it tonight when I get off and see
6 is working right. The other 3 never get hot
What I suspected.... Let me get back on this later tonight. I'll find where you need to get those wires connected.