I have an 1989 s-10 2.5l fuel injected. It has the original fuel pump and it is not pumping at enough pressure to keep the engine running. How much pressure should I be getting?
2006-08-21 05:53:49 · 4 answers · asked by jcrulz13 2 in Cars & Transportation ➔ Maintenance & Repairs
This depends on if you have throttle body injection or port injection. Throttle body injection usually uses around 16 pounds max. Port injection can go all the way from 32 to well over 100 pounds. You need to call a parts store and find out what pressure your pump is supposed to be putting out. They can look in their fuel pump book and find the pressure rating in the back of the book. Also refer to your repair manual for the proper pressure at the fuel rail if it is port injected.
Also check the fuel pressure regulator. Your pump might be working fine but the regulator isn't letting the proper amount of pressure through.
2006-08-21 07:11:23 · answer #1 · answered by Thomas S 3 · 0⤊ 0⤋
between 35 and 40 psi
2006-08-21 06:27:01 · answer #2 · answered by BIG DADDY 3 · 0⤊ 0⤋
9-13 psi
2006-08-21 06:19:11 · answer #3 · answered by Imerc 3 · 0⤊ 0⤋
it should be around 35 pounds of pressure
2006-08-21 06:06:37 · answer #4 · answered by big_daddy_don7 2 · 0⤊ 0⤋