Intermitting Electrical Problem
#1
Intermitting Electrical Problem
I have a 2002 Chevrolet S10 Extreme V6, I think 4.3 L, spark and fuel pump dropping out while driving. Which can be dangerous at times. Love to drive vehicle around. Am suspecting ground issue. Can someone tell me where all of the grounds are located? Truck runs really good when it runs but it cuts out, no codes are detected. Already disabled security device. Replaced fuel pump relay and fuel pump,
Thanks in advance for input to this issue.
Thanks in advance for input to this issue.
#2
Senior Member
True Car Nut
How long have you owned it?
How many miles on it?
What region does it live in?
Has it had any major trauma (accidents, floods, etc.)?
Have you checked the battery terminals for tightness and corrosion?
Was the fuel pump replaced for this issue or another issue?
How many miles on it?
What region does it live in?
Has it had any major trauma (accidents, floods, etc.)?
Have you checked the battery terminals for tightness and corrosion?
Was the fuel pump replaced for this issue or another issue?
#6
Retired
Wondering if ICM is getting hot and failing.
What makes you think fuel pump is dropping out?
What makes you think fuel pump is dropping out?
#9
Retired
The fuel pressure isn't a constant. If the engine all of a sudden stops running due to ignition issues, the pump will run few more seconds then stop. The pump will turn back on when cranking starts and the ECU sees ignition signal.
#10
When truck stops running I have no voltage at coil +wire and fuel pump is not running when I use a test light to test for power try it a couple times when light lights I have fuel pressure and voltage to coil now it will run perfect for a day or so that'* why I am thinking it is a ground problem thanks for all the input