There's a single brown wire ussualy near the booster. Unplug that wire. Use a timing light to set the timing to zero and plug the wire back in.
It is on the side of the throttle body opposite the throttle cable.
It is in the throttle body.
It is located on the throttle body, opposite side of where the throttle cable is attached.
Late 1987 to 1995 were all TBI / throttle body injection
Around 1987, the they switched to tbi [Throttle body injection]
Throttle body fuel injection.
Both. It has fuel injectors and a throttle body.
Could be a faulty temp sending unit.
The 87 will bolt in to the 77 however, the 87 is throttle body fuel injected. You will have to convert the 77 over to except throttle body fuel injection perhaps with parts from a donor truck.
How do you replace a throttle body on a trailblazer 2002
On the throttle body.
Yes, the last year for throttle body injection for Chevy was in 1995, I believe.