GM Forum - Buick, Cadillac, Olds, GMC & Pontiac chat

GM Forum - Buick, Cadillac, Olds, GMC & Pontiac chat (https://www.gmforum.com/)
-   1992-1999 (https://www.gmforum.com/1992-1999-91/)
-   -   Did a fuel pressure test today and its running at 41 psi ? (https://www.gmforum.com/1992-1999-91/did-fuel-pressure-test-today-its-running-41-psi-246006/)

willwren 11-08-2006 06:14 PM


Originally Posted by cvc
with key on and bleed the line then off and back on its around 48 psi, is that how he wanted me to do it ?

Read above. How LONG did it take to bleed down?

cvc 11-08-2006 07:16 PM

6 minutes or a little longer...

Tr00p3r 11-08-2006 07:36 PM

Is the test procedure the same for 93 bonneville ssei?

Damemorder 11-08-2006 10:16 PM


Originally Posted by Tr00p3r
Is the test procedure the same for 93 bonneville ssei?

Yes.

willwren 11-09-2006 12:17 AM


Originally Posted by Damemorder

Originally Posted by Tr00p3r
Is the test procedure the same for 93 bonneville ssei?

Yes.

But the pressures are NOT the same.

banned3800 11-09-2006 08:17 AM


Originally Posted by willwren

Originally Posted by Damemorder

Originally Posted by Tr00p3r
Is the test procedure the same for 93 bonneville ssei?

Yes.

But the pressures are NOT the same.

Nope they sure arent...

Series II is 48-55 Psi... Falling a few psi short at dead idle( Vacume applied to the FP reg ) is normal... You could see several Psi lower than the low rating...

__________________
Best Car Insurance | Auto Protection Today | FREE Trade-In Quote

cvc 11-09-2006 03:10 PM

so is mine ok ? Im at 51 with the vacumn FPR off ?

banned3800 11-09-2006 03:19 PM


Originally Posted by cvc
so is mine ok ? Im at 51 with the vacumn FPR off ?

A little on the lower side... But within range, I'd say for the time being you are ok... What pressure do you have with the Vacume applied and the engine idling?

__________________
Best Car Insurance | Auto Protection Today | FREE Trade-In Quote

cvc 11-09-2006 05:29 PM

about 42 psi idling with the line conected almost the same as the Park that only has 70k on it.

motorhead 11-09-2006 08:12 PM

cvc, with those readings there should be nothing wrong with your pump or regulator for running conditions. If you are having a hard start condition, then we will need to know what the fuel pressure drops to after the pump cycles off. This is refered to as a bleed-down test.

What is your reason for checking the pressure? Whats your complaint?


All times are GMT -4. The time now is 12:30 AM.


© 2024 MH Sub I, LLC dba Internet Brands