|
2003 Chevy Silverado 2500hd
I have a 03 Silverado 2500hd, I have been having problems for a while,it has been misfiring, I changed plugs wires, coils fuel filter and fuel injectors, now I am getting a u1003 code. Loss of communication with Powertrain multiple control system. And anyone know what is could be? All the wires look good |
What engine?
How many miles on it? How long have you owned it? How many miles have you owned it? |
2003 Chevy Silverado 2500 hd
It has about 110000 miles its a 6.0 i have had it for about 2/12 to 3 years i have put on about 30000to 40000 Miles’s on |
That is the ONLY code?
Clear code and see if that is the only one that comes back.... |
It has had a code po300 also but hasn’t come back on |
I have cleared it 5 times or so it comes back on, very frustrating |
First check to make sure mice have not eaten wires. Then check to see if your grounds are in good shape. Check your in and around the fuse box. Something is not letting it communicate. You might end up having to replace the interior box if are are sure all your wires are good
|
Originally Posted by Seanjordan20
(Post 1628592)
First check to make sure mice have not eaten wires. Then check to see if your grounds are in good shape. Check your in and around the fuse box. Something is not letting it communicate. You might end up having to replace the interior box if are are sure all your wires are good
Is is the pcm the interior box? I’m not sure where to start looking |
No the interior fuse box is when you first open the driver door. On the side of the dash.
Start by looking at your wires and grounds under the hood. Make sure they are not chewed or rusted/oxidized. |
Originally Posted by Seanjordan20
(Post 1628600)
No the interior fuse box is when you first open the driver door. On the side of the dash.
Start by looking at your wires and grounds under the hood. Make sure they are not chewed or rusted/oxidized. |
| All times are GMT -4. The time now is 01:37 PM. |
© 2024 MH Sub I, LLC dba Internet Brands