93 starts sometime.
Thread Starter
4th Gear
Joined: Oct 2004
Posts: 4
Likes: 0
93 starts sometime.
I have a 93 lt1 6speed sometimes it starts and sometime it wont. It turns over good has a new battery. I drove the car saturday and then it would not start on sunday. Any and all would be a great help. I have changed the fuel pump relay.
Bobby
Bobby
Team Owner
Joined: Aug 2000
Posts: 40,156
Likes: 45
From: San Pedro CA
define "start", as in fires up and you can drive?
I assume it cranks?
Do you have any codes?
Have you checked fuel pressure? A failing fuel pump will cause this, as will a worn out fuel filter.
The fuel pump relay is an interesting circuit, it rarely fails. It's wired in parallel with the oil pressure circuit, as soon as it hits 4 PSI, it can fire the fuel pump, regardless. This is incase the fuel pump relay craps out.
This can make for a hard start, but rarely a no start condition.
Another thing, check your ignition key, the VATS may be getting cranky.
You really need a copy of the GM service manual - www.helminc.com
I assume it cranks?
Do you have any codes?
Have you checked fuel pressure? A failing fuel pump will cause this, as will a worn out fuel filter.
The fuel pump relay is an interesting circuit, it rarely fails. It's wired in parallel with the oil pressure circuit, as soon as it hits 4 PSI, it can fire the fuel pump, regardless. This is incase the fuel pump relay craps out.
This can make for a hard start, but rarely a no start condition.
Another thing, check your ignition key, the VATS may be getting cranky.
You really need a copy of the GM service manual - www.helminc.com
