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GM Bob
GM Bob, ASE Certified Technician
Category: Chevy
Satisfied Customers: 962
Experience:  30 plus years. experience as GM technician, ASE Master Technician and GM Certified.
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My name is ***** ***** and mainly my truck isnt running I

Customer Question

My name is ***** ***** and mainly my truck isnt running I have already replaced fuel pump relay, fuel filter, fuel pump Ignition coil pack, distributor cap Battery, spark plugs
JA: Thanks. Can you give me any more details about your issue?
Customer: It acts like its trying to turn over and it wont start
JA: OK got it. Last thing — Chevy Mechanics generally expect a deposit of about $18 to help with your type of question (you only pay if satisfied). Now I'm going to take you to a page to place a secure deposit with JustAnswer. Don't worry, this chat is saved. After that, we will finish helping you.
Submitted: 9 months ago.
Category: Chevy
Customer: replied 9 months ago.
I have a 1999 chevy silverado 1500 2wd 4.3 v6
Expert:  Gary replied 9 months ago.

can you tell me what the fuel pressure is key ON engine OFF ?

will it somewhat run on starting fluid ?

Customer: replied 9 months ago.
3/4 tank and if we spray it in the carburetor it trys to start and won't stay on
Expert:  Gary replied 9 months ago.

but will it run on the spray ?

what is the fuel pressure key ON engine OFF ?

Customer: replied 9 months ago.
After we stop spraying it stops
Expert:  Gary replied 9 months ago.

ok what is the fuel pressure key ON engine OFF ? and will it somewhat hold for a few ?

Customer: replied 9 months ago.
When i turn it over to turn the truck on not the engine the hand goes from e to 3/4 of a tank when i turn the engine over the gas hand doesn't move
Expert:  Gary replied 9 months ago.

ok what is the fuel pressure key ON engine OFF ? and will it somewhat hold for a few ?

Customer: replied 9 months ago.
The pressure stays constant
Expert:  Gary replied 9 months ago.

what is it reading ?

Customer: replied 9 months ago.
3/4 tank gas other than that i don't know what else you are asking
Expert:  Gary replied 9 months ago.

i am asking what the fuel pressure is reading with a fuel pressure gauge connected to the test port key ON engine OFF

Expert:  Gary replied 9 months ago.

if it will run on starting fluid then we either have low or no fuel pressure or the injection is not sending fuel into the engine

Customer: replied 9 months ago.
I have fuel getting to the engine
Expert:  GM Bob replied 9 months ago.

Hello my name is ***** ***** I can help.

This engine needs 60–66 psi of fuel pressure to open the popit injectors.

If less than that the engine will not start.

There is a port on the fuel line to test the fuel pressure. Need a pressure gauge.

Please let me know what you find.

Thank you

Customer: replied 9 months ago.
Hey bob i don't have a fuel pressure gauge ir a way to get one
Customer: replied 9 months ago.
But just replaced the fuel pressure connector
Expert:  GM Bob replied 9 months ago.

If you are looking for one most auto part stores have inexpensive test gauges.

Fuel pressure connector? Do you mean the connector at the fuel pump?

Customer: replied 9 months ago.
No duel pressure sensor
Customer: replied 9 months ago.
Fuel
Expert:  GM Bob replied 9 months ago.

Sorry for delay

The sensor on top of the tank?

Customer: replied 9 months ago.
just replaced it
Expert:  GM Bob replied 9 months ago.

That is a sensor for the EVAP system.

It will not cause the engine to start.

Let me know when you get a fuel pressure reading.

Expert:  GM Bob replied 9 months ago.

Did you find your problem?

Did you get a pressure reading?

Please let me know.

Thank you

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