when does fuel pump operate?

Asked by Amy Jul 03, 2016 at 06:09 PM about the 1980 Dodge D-Series

Question type: Maintenance & Repair

No pressure when i turn on the key but 10 psi when it is running.  Is the pump
supposed to run with the key on not just when cranking?  1989 D150 5.2L

2 Answers

144,795

That is low pressure for running,and no the pump want run but a few seconds when you just cut key on,sounds like the pump might be getting weak.

1 people found this helpful.
144,795

Ans if you havent change the fuel filter may try it first before replacing pump.

1 people found this helpful.

Your Answer:

CarGurus Experts

  • #1
    Reelin68
    Reputation
    80
  • #1
    Gene Arnett
    Reputation
    80
  • #1
    T_S_T
    Reputation
    80
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

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. Content will be removed if CarGurus becomes aware that it violates our policies.