All times are UTC - 6 hours [ DST ]




Ask A Question Reply   
Author Message
 

contributions: 1
I have a 2001 silverado had a 4.8 changed the 4.8 to a 5.3 also used the 5.3 harness and ecu, want start; turns over fire it's like it fires off and dies, any help would be awesome.


   
Reply with quote  
* Search   
 
User avatar

contributions: 2264
Images: 37
Location: Oregon
you didn't need to change the pcm and harness.

your going to need to go to the basics. check fuel pressure, injector pulse and spark. Is your passlock working correctly? if your truck uses anti-theft you will might need to do a relearn.


   
Reply with quote  
Ask A Question Reply   

   Similar Topics   Author   Replies   Views   Most Recent 
New Articles View the first Silverado 5.3L Engine swap

in Chevy Silverado

Brentz

4

3506

Fri Jun 23, 2017 8:36 am

ctel View the latest

New Articles View the first 4.3 engine swap

in GMC Trucks

Havok

6

1968

Sat Jul 29, 2017 11:50 pm

Havok View the latest

New Articles View the first 91 Silverado Just died as I drove. Now won't start

in Chevy Silverado

paulakubiak

2

1411

Thu Feb 22, 2018 4:18 am

JerryLtowIt View the latest

New Articles View the first 4l60e transmission swap from a 99 tahoe into an 02 yukon

in GMC Trucks

CrazyW

1

2593

Sat Nov 18, 2017 5:55 pm

carriedi View the latest

New Articles View the first 1992 Silverado 4 wd

in Chevy Silverado

stevep

3

3419

Tue Sep 05, 2017 4:21 am

jcmgmm View the latest

New Articles View the first 92 Silverado K3500 7.4 L

in Chevy Silverado

stevep

2

805

Fri Oct 26, 2018 6:20 am

carriedi View the latest

New Articles View the first 02 silverado 1500 4.8

in Chevy Silverado

thomas4297

3

3106

Wed Feb 07, 2018 1:25 am

carriedi View the latest


All times are UTC - 6 hours [ DST ]



Search for:
Jump to:  
Contact Us