350 tbi wont start

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usar17

Full Access Member
Joined
May 3, 2012
Posts
596
Reaction score
17
Location
PA
First Name
Shawn
Truck Year
1985/87
Truck Model
K20 Silverado
Engine Size
TBI350/700r4/NP208
I did half a rebuild on a 350tbi and a complete rebuild on a 4l60e. Dropped them in, now the engine wont start. Ran when i pulled her, which was almost exactly a year ago. Starter is cranking, shes getting fuel, shes getting spark, and I confirmed the firing order. No error codes showing. What i am noticing is that shes blowing burts of pressure back up thru the intake.....I'm gonna confirm the spark plug wires are set off TDC, that's my 1st thought. Wondering if you guys have any other ideas.


I badly need to borrow my friends scan tool to confirm all sensors still.
 
Last edited:

usar17

Full Access Member
Joined
May 3, 2012
Posts
596
Reaction score
17
Location
PA
First Name
Shawn
Truck Year
1985/87
Truck Model
K20 Silverado
Engine Size
TBI350/700r4/NP208
was the #1 cylinder wiring. I was off by 1 for setting TDC. ******* :/
 

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