98 Chevy fuel problems
roessler13
12-07-2007, 08:53 PM
I have replaced fuel pump and pressure regulator. Failing plugs, but holds 60 lbs of fuel pressure. Won't start, getting too much fuel. Every once in awhile, the truck will start and run fine.
tempfixit
12-07-2007, 09:17 PM
Check for codes and post
What engine
What engine
roessler13
12-07-2007, 09:43 PM
No codes, Vortec 350 engine
tempfixit
12-07-2007, 10:28 PM
How many miles??
Have you checked distributor cap and rotor, coil??
Have you checked distributor cap and rotor, coil??
roessler13
12-08-2007, 07:32 AM
I have checked cap, rotors, coil, sensors. I have checked timing.
tempfixit
12-08-2007, 09:44 AM
How many miles on vehicle?
Is distributor rotating?
Have you checked engine coolant temperature sensor
Check ignition moduel in distributor.
Are there any other symptons.
You may need a scanner to help find problem.
Hope this helps
Is distributor rotating?
Have you checked engine coolant temperature sensor
Check ignition moduel in distributor.
Are there any other symptons.
You may need a scanner to help find problem.
Hope this helps
MT-2500
12-08-2007, 10:17 AM
60 lbs of fuel pressure is on the boder line of to low.
You need 65 lbs for injectors to squirt fuel on a cold start.
Check for good hot blue spark to more than one spark plug when no start.
Watch and check cranking fuel pressure on a cold start.
Try a squirt of carb cleaner.
If it is a fuel problem a squirt of carb cleaner will help it start.
Tell us more about the failing plugs?
Do you have the correct good AC delco plugs in it?
You need 65 lbs for injectors to squirt fuel on a cold start.
Check for good hot blue spark to more than one spark plug when no start.
Watch and check cranking fuel pressure on a cold start.
Try a squirt of carb cleaner.
If it is a fuel problem a squirt of carb cleaner will help it start.
Tell us more about the failing plugs?
Do you have the correct good AC delco plugs in it?
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