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Chris (aka-Moose)
Chris (aka-Moose), GMC Technician
Category: GMC
Satisfied Customers: 48390
Experience:  16 years of experience
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Changed a wiring harness, now the 2001 sonoma starts for 10

Customer Question

changed a wiring harness, now the 2001 sonoma starts for 10 seconds and dies, it started yesterday we let it run for five hours, shut it down and today it starts for a couple of seconds and dies again. the security lite comes on sometimes along with other lites, other times they don't all come on. how cani keep it starting all the time?
JA: Does the light flash, blink or stay solid? Have you tried to reset the security system?
Customer: stays on solid, tried to reset pass and learn a couple of times
JA: Are you fixing your Sonoma yourself? What have you tried so far?
Customer: fixing myself
JA: Anything else you want the mechanic to know before I connect you?
Customer: the truck starts and runs, had it running for five hours, now it wont start again
Submitted: 10 months ago.
Category: GMC
Expert:  Chris (aka-Moose) replied 10 months ago.

Welcome, I'm Chris (aka Moose), my normal schedule online is around lunch and after dinner till early morning.

Will it start and stall even if holding the throttle high?

Any codes stored?


Customer: replied 10 months ago.
i followed the FAQ on resetting the pass lock , yet the security light never came on, after performing the relearn sequence timing, the vehicle still didn't start fully until the fifth cranking, it started for a couple seconds and died only to have cranking performed until the fifth tryCountry: United States
Make: GMC
Model: Sonoma Pickup
Year: 2001
Engine: 2.2Already Tried:
relearn sequence per FAQ
Expert:  Chris (aka-Moose) replied 10 months ago.

Once you get it to start can you get it to remain running with throttle applied?

Any trouble codes stored when scanned with a scan tool?

Expert:  Chris (aka-Moose) replied 10 months ago.

Hello again Chris here,

  • Sorry you were not pleased with my help.
  • What would you like to do regarding your question now.
  • This post is coming up on the 7 day mark where it times out. When a post times out, that means it's no longer on my active list (you reply and I may never know it.)

Thanks Chris