SPONSORED LINKS

1989 Chevy Silverado injectors not fireing

Tiny
XRMOTO_X
  • MEMBER
  • 1989 CHEVROLET SILVERADO
  • V8
  • 4WD
  • MANUAL
K so my truck started backfireing. So I replaced the air cleaner and cleaned the inside of the dist cap ( lots of buildup )the truck fired but stopped suppling fuel, so I replaced the fuel pump, filter, fuel relay. Still nothing so then I found out the dist. Was broke so I replaced the whole dist and its still not starting im getting fuel all the way to the throttle body but my injectors still wont fire and im getting power to all four wires on the injectors. Any ideas.
SPONSORED LINKS
Tuesday, January 25th, 2011 AT 6:31 PM

5 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Hook up a noid lite on the injector harness and see if it'll flash by cranking the engine over also -Do you have spark?
Was this
answer
helpful?
Yes
No
Thursday, September 3rd, 2020 AT 9:58 AM
Tiny
XRMOTO_X
  • MEMBER
  • 3 POSTS
Yes I have spark. I have everything I should need just no fuel through the injectors.
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Thursday, September 3rd, 2020 AT 9:58 AM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Check injectors fuse if okay and if there's power to one side of the injector harness-check the computer's injector ground driver circuit-
Was this
answer
helpful?
Yes
No
Thursday, September 3rd, 2020 AT 9:58 AM
Tiny
XRMOTO_X
  • MEMBER
  • 3 POSTS
How do I check the computers injector ground driver circuit
Was this
answer
helpful?
Yes
No
+1
Thursday, September 3rd, 2020 AT 9:58 AM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Check the injector ground wire back to the computer if okay get it repaired/replace-
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Thursday, September 3rd, 2020 AT 9:58 AM

Please login or register to post a reply.

Related Engine Not Running Content

How to fix an engine that wont start
VIDEO
How to fix an engine that wont start
Instructional repair video
Engine Not Starting - Top 3 Easy Steps
GUIDE
Engine Not Starting - Top 3 Easy Steps
Over the past 20 years on 2CarPros we have identified the top three problems that are easily fixed. This can save you a trip to the repair garage or calling a tow truck and...
VIEW MORE

Sponsored links