4.3 starts then dies

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Jul 23, 2022 | 01:30 PM

flybird

Thread Starter

New Member

Joined: Jan 2022

Posts: 2

4.3 starts then dies

Got a 2000 jimmy 4.3 vortech it starts up then dies, seems the fuel pump is working fine thought it was in the ignition but that didn't seem to help any other possible idea what we should look for please share!!!!

Jul 23, 2022 | 02:27 PM

GeorgeLG

BF Veteran

Joined: Jan 2007

Posts: 4,635

From: Florida

Any codes?

First thing is a proper fuel pressure test per the sticky.

When this happens, will it start right back up or only crank? If it only cranks then you need to check spark.

George

Aug 7, 2022 | 09:34 AM

Smsm1994

Starting Member

Joined: Aug 2022

Posts: 1

Quote:

Originally Posted by flybird

Does the Security lamp on dashboard plinking or always on
if it plinks you should let the ignition about 10 - 15 minutes ON till the lamp keep on then start the car.