1998 CHEVY SILVERADO START UP

  • Tiny
  • Whoomba
  • 1998 CHEVROLET SILVERADO

Engine Performance problem
1998 Chevy Silverado V8 Two Wheel Drive Automatic 143k miles

I just recently changed the fuel filter. It was really stopped up. The pressure went from unmeasurable to 45 psi. It has CSFI. Now every time I start it, it stumbles a little and slowly builds up to the proper idle. Any idea what is going on? Thanks

Do you
have the same problem?
Yes
No
Tuesday, August 25th, 2009 AT 4:58 PM

3 Replies

  • Tiny
  • Rasmataz
  • MEMBER

Your fuel pressure should be 60-66psi being that low 45psi might be causing the problem.

Was this
answer
helpful?
Yes
No
Tuesday, August 25th, 2009 AT 5:17 PM
  • Tiny
  • Whoomba
  • MEMBER

Thats good. I thought I read on hear it should be 04 to 50. I seem to be getting good pressure from the pump. How do I test the fuel pressure regulator on a CSFI system?

Was this
answer
helpful?
Yes
No
Friday, August 28th, 2009 AT 10:44 PM
  • Tiny
  • Rasmataz
  • MEMBER

The fuel regulator is integrated into the CSFI unit its inside the intake manifold/plenum

Was this
answer
helpful?
Yes
No
Saturday, August 29th, 2009 AT 1:19 AM

Please login or register to post a reply.

Other Fuel System Filter Plugged Questions