Fuel pump pressure test?

Tiny
VICD1016
  • MEMBER
  • 2003 CHEVROLET CAVALIER
How do I check the pressure?
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Wednesday, April 14th, 2010 AT 5:15 PM

12 Replies

Tiny
RASMATAZ
  • EXPERT
Use a fuel pressure gauge at the fuel test port on the fuel rail. Here is a guide to help you step by step with instructions in the diagrams below to show you how on your car.

https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator


https://www.2carpros.com/forum/automotive_pictures/12900_fp_check_1.jpg

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Friday, February 8th, 2019 AT 7:44 PM
Tiny
DSHORT1967
  • MEMBER
  • 2003 CHEVROLET CAVALIER
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 132,000 MILES
What should the fuel pressure be. One place told us 65 psi another place told us 115. Which is it?
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Wednesday, May 12th, 2021 AT 7:02 PM (Merged)
Tiny
RASMATAZ
  • EXPERT
Hello,

Key on engine off should read 50-60 psi. Here is a guided hat will help you see how to test the fuel pressure.

https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator

Please let us know if you need anything else to get the problem fixed.
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Wednesday, May 12th, 2021 AT 7:02 PM (Merged)
Tiny
DB022288
  • MEMBER
  • 2002 CHEVROLET CAVALIER
The vehicle was ran dry on fuel and with much attempt (yes it now has fuel) I cannot get it to run, all it will do is start for about 3 seconds and die everytime. I assumed the fuel pump could be bad but I had a helper turn the key on while I listened by the fuel tank. The pump is definatly running. I am now assuming there could be an air lock in the system but Im not sure where I can crack a line and bleed it. Your advice would be appreciated. Thankyou
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Wednesday, May 12th, 2021 AT 7:02 PM (Merged)
Tiny
RASMATAZ
  • EXPERT


https://www.2carpros.com/forum/automotive_pictures/12900_fp1_37.jpg



Relieve the fuel system pressure. Refer to Fuel Pressure Relief Procedure
Disconnect the fuel feed hose (2) from the fuel rail (5).
Install the J 29658-D with the J 29658-500 between the fuel feed hose and fuel rail.
Turn ON the ignition, with the engine OFF.
CAUTION: Refer to Fuel Storage Caution in Service Precautions.

Place the bleed hose of the fuel pressure gage into an approved gasoline container.
Open the bleed valve on the fuel pressure gage in order to bleed the air from the fuel pressure gage.
Command the fuel pump ON with a scan tool.
Close the bleed valve on the fuel pressure gage.
Command the fuel pump ON with a scan tool.
Inspect for fuel leaks.
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Wednesday, May 12th, 2021 AT 7:02 PM (Merged)
Tiny
DB022288
  • MEMBER
I do not have a manual at hand and I would be very thankful if you could tell me how to disconnect the fuel line from the fuel rail. The lines appear to be crimped. Thankyou
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Wednesday, May 12th, 2021 AT 7:02 PM (Merged)
Tiny
RASMATAZ
  • EXPERT
You need a quick disconnect tool


https://www.2carpros.com/forum/automotive_pictures/12900_KD3321_1.jpg

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Wednesday, May 12th, 2021 AT 7:02 PM (Merged)
Tiny
DB022288
  • MEMBER
Fuel pump is definatly shot. Filter is severly clogged and even with filter off the pump makes a sound but will not pump any fuel. I am woundering what the procedure is for removing the fuel tank and how hard of a job it is. Can I do this without a lift?

Thanks
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Wednesday, May 12th, 2021 AT 7:02 PM (Merged)
Tiny
R.STEWART
  • MEMBER
  • 1993 CHEVROLET CAVALIER
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 20,000 MILES
Where do you attach the fuel pressure guage yo check the fuel pump pressure?
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Wednesday, May 12th, 2021 AT 7:02 PM (Merged)
Tiny
RASMATAZ
  • EXPERT
No Fuel Pressure Test Port exists for this model/engine.
You must install an in-line gauge, as shown below to get pressure readings.


https://www.2carpros.com/forum/automotive_pictures/12900_fp_60.jpg

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Wednesday, May 12th, 2021 AT 7:02 PM (Merged)
Tiny
FARMERJOE
  • MEMBER
  • 1992 CHEVROLET CAVALIER
  • 2.2L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 130,000 MILES
I need to know how to check the fuel pressure, there does not appear to be a schrader valve anywhere that I can find. So how do I hook a gauge up?
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Wednesday, May 12th, 2021 AT 7:02 PM (Merged)
Tiny
WRENCHTECH
  • EXPERT
https://www.2carpros.com/images/external/41919968.gif

No Fuel Pressure Test Port exists for this model/engine.
You must install an in-line gauge, as shown above, to get pressure readings.
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Wednesday, May 12th, 2021 AT 7:02 PM (Merged)

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