Performances issues with replacement fuel pumps.

[tomcat]

All, My question is, has any one had performance issues when they replaced their fuels pumps used in the Chevrolet Suburban? A friend of mine had his fuel pumps changed at a Chevrolet Dealer in Portland Oregon & his ZR1 has performance issues.

Manfred E..........
91 ZR1 #906
http://pnwzr1.net

[Jeffvette]

If they didn't change the sock? Also, it may be injectors :D

[GOLDCYLON]

And the fuel filter for that matter...

[Hammer]

And the fuel filter for that matter...

Hey man, when did you become a moderator? I bet Z Factor appreciates the help.

[karterdon]

Big block fuel pumps have an operating pressure of 65#-95#. ZR1 pumps have an operating pressure of 45#-65# - Might cause a problem.

Don Yoakem
91-#267 Dark Red Met.