Return to the Cars Forum | Post a Follow-Up

 o
fuel filter

Posted by joe_mn (My Page) on
Sun, Jun 6, 10 at 10:53

99 grand prix. changed original fuel filter. quick connect fitting pulled apart. small plastic spacer and bits seized onto steel filter nipple so fitting pulled apart. i tore o-ring and GM dealer made a mistake and sold me new o-ring which is for the hex end of filter. seems they have no listing for o-ring i need. i put QC back together and tried to use another o-ring but have small leak. i can buy new QC fuel line, or get hose end repair kit at parts store or go to junkyard and find donor car and extract used o-ring?


Follow-Up Postings:

 o
RE: fuel filter

i went to boneyard. inspected several cars. all had QC fittings with 2 o-rings. where did my 2nd o-ring go? its o-ring, spacer, 2nd o-ring, thicker plastic locking collar. came apart easily with small screwdriver assistance. put parts back into my fitting body and filter does not leak. every fitting i removed from filters at junkyard came apart with ease. why did the one on my car pull apart? just life i guess.


 o
RE: fuel filter

car started and died immediately. did it 3 times. than ran ok. 2 days later it stalled after 1 block when cold. restarted fine. never has stalled before. no codes. others have mentioned maf sensor. or perhaps fuel pump. thats why i changed filter. has not repeated the funny start issue. maybe it is fuel pressure regulator? current reg is 1 yr old.


 o
RE: fuel filter

fuel pressure is 42psi at idle. remove regulator vacuum line and it jumps to 48. spec is 48-55. i assume that is with regulator hooked up? spec for 3.8 motor is 48-55. the spec for 3.1 motor is 41-47


 o
RE: fuel filter

i like to clean up threads at end. turns out i had bad maf. car would not stay running. i unplugged maf and it ran fine. got new maf and i am good. filter is still dry.


 o Post a Follow-Up

Please Note: Only registered members are able to post messages to this forum.

    If you are a member, please log in.

    If you aren't yet a member, join now!


Return to the Cars Forum

Information about Posting

  • You must be logged in to post a message. Once you are logged in, a posting window will appear at the bottom of the messages. If you are not a member, please register for an account.
  • Please review our Rules of Play before posting.
  • Posting is a two-step process. Once you have composed your message, you will be taken to the preview page. You will then have a chance to review your post, make changes and upload photos.
  • After posting your message, you may need to refresh the forum page in order to see it.
  • Before posting copyrighted material, please read about Copyright and Fair Use.
  • We have a strict no-advertising policy!
  • If you would like to practice posting or uploading photos, please visit our Test forum.
  • If you need assistance, please Contact Us and we will be happy to help.


Learn more about in-text links on this page here