what pressure reading should there be on a 1989 f150 high pressure fuel pump.

Asked by Jun 20, 2010 at 03:50 PM about the 1989 Ford F-150

Question type: Maintenance & Repair

What direct pressure readings should i be getting on a high pressure fuel pump (rail mounted)?  I am reading 17 psi.

What should the pressure reading be when hooked  up to the schrader valve on the fuel line just behing the engine up close to the firewall?  I read 10 psi

Are these within spec's for1989 F150 4.9 L EFI high pressure fuel pump?.

3 Answers

55

You should have 45-60 psi at the rail with engine running.

4 of 4 people found this helpful.

yes you are withen spec,s,if you are getting to much or not enought fuel,put a fuel regulator on it,you will be able to adjust the fuel pressure.

1 of 1 people found this helpful.
85

that sounds kinda low. i have an 05 f150 and my fuel rail pressure is at 40psi. but mine is the 5.4 triton. but that dose seem low.

3 of 3 people found this helpful.

Your Answer

F-150

Looking for a Used F-150 in your area?

CarGurus has 220,459 nationwide F-150 listings starting at $1,200.

ZIP:

Ford F-150 Experts

  • #1
    OJ
    Reputation
    9,430
  • #2
    dandyoun
    Reputation
    4,640
  • #3
    tennisshoes
    Reputation
    3,270
View All

Related Models For Sale

Used GMC Sierra 1500
1,220 Great Deals out of 64,513 listings starting at $999
Used Ford Mustang
597 Great Deals out of 39,170 listings starting at $1,895
Used Ford F-250
447 listings starting at $4,995

Used Cars For Sale

2018 Ford F-150 For Sale
3 Great Deals out of 117,667 listings starting at $20,645
2017 Ford F-150 For Sale
168 Great Deals out of 27,935 listings starting at $16,402
2016 Ford F-150 For Sale
196 Great Deals out of 7,738 listings starting at $16,991
2015 Ford F-150 For Sale
492 Great Deals out of 11,324 listings starting at $11,990
2014 Ford F-150 For Sale
758 Great Deals out of 15,245 listings starting at $8,075

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.