Fuel Pump

Tiny
DON LINDHOLM
  • MEMBER
  • 1993 CHEVROLET BLAZER
  • 6 CYL
  • 2WD
I am in Mexico, have put two new "Chinese fuel pumps in my 93 chevy blazer 4.3 vortec, TBI model. 1st didn't work, 2nd worked sometimes. Bought Carter at PepBoys, didn't work at all. One time I saw pressure at about 55PSI. GM says the AC Delco runs at 61PSI, Napa has a Federal Mobile unit they claim puts out 65PSI. Could my problem be as simple as inferior pumps?
Do you
have the same problem?
Yes
No
Wednesday, November 17th, 2010 AT 1:42 AM

3 Replies

Tiny
JACOBANDNICKOLAS
  • EXPERT
It could be a bad pump, relay, wiring. Is the vehicle running with the one from Pep Boys?
Was this
answer
helpful?
Yes
No
Wednesday, November 17th, 2010 AT 2:04 AM
Tiny
BMRFIXIT
  • EXPERT
Fuel pressure should be 55 PSI and above V6 3.8 W
if not fuel pump is at fault
when replacing fuel pump closely inspect connector wire as its very common failure and cause to a faulty fuel pump replacement
Was this
answer
helpful?
Yes
No
Wednesday, November 17th, 2010 AT 2:14 AM
Tiny
FIXITMR
  • MEMBER
What about the fuel pressure regulator? I've seen lots of bad 1's!
Was this
answer
helpful?
Yes
No
Wednesday, November 17th, 2010 AT 2:35 AM

Please login or register to post a reply.

Recommended Guides