Motor turn over too before it crank,

94 Chevy Caprice. LT1 turn over too long before it crank. The motor turn over like 3 or 4 seconds before it fire up. What's the problem?

I would put a fuel pressure gauge on it to see how long it is taking to prime and if it holds a prime.

^This. Check your fuel filter.

^This. Check your fuel filter.

I change the fuel filter. It still doing the same thing.

I change the fuel filter. It still doing the same thing.

Did you put a fuel pressure gauge onto the diagnostic port, as 96capricemgr asked above? If so, what pressure reading did you get?

94 Chevy Caprice. LT1 turn over too long before it crank. The motor turn over like 3 or 4 seconds before it fire up. What's the problem?

if this occurs with a hot/cold start I would look at the voltage to the fuel pump at the rear of the vehicle with the pump running.

this could be an electrical / voltage drop issue if the fuel pump pressure is slow to rise or is a little low.

the pressure need be above 43psi. key on eng off and should hold for a few minutes.

some have found fuel pump wiring/connectors as the issue. inside the trunk is just one of them that for some reasons burns up.