No fuel/fail to start

Asked by Johnathan Jun 10, 2019 at 04:29 PM about the 1985 Mercury Cougar Coupe RWD

Question type: Maintenance & Repair

Bought an 85 Cougar, test drove and it ran fine.
Now it's failing to start. It will run if fuel is poured
into the 4th throttle body. The fuel pump works
when the relay is jumped but still won't run.
Disconnecting the line from the throttle body and
jumping the relay produces fuel so I know the line
isn't plugged. I've replaced the fuel pump relay, eec,
and fuel filter so far. Tried a new ignition switch as
well. Any suggestions?

2 Answers
40,015

beatupchevy answered 5 years ago

get some test equipment to eliminate guess work , (guess work's bad Mkay) , fuel pressure gauge , multi meter , to see if there's power and ground at the fuel pump disconnect and fuel pressure , is the injector(s) firing ? Maybe some crap in the fuel tank/line

1 people found this helpful.
Mark helpful

Johnathan answered 5 years ago

Without jumping the fuel pump relay there is 0 pressure, the pump doesn't even kick on. multimeter reads 12 volts at the large terminals and 3 at the smaller on the fuel pump and ignition relays. Multimeter also reads 3 at the injectors.

Mark helpful

Your Answer:

Related Questions

  • No fuel/fail to start 2 Answers

    Bought an 85 Cougar, test drove and it ran fine. Now it's failing to start. It will run if fuel is poured into the 4th throttle body. The fuel pump works when the relay is jumped but still won't ru...

    1985 Mercury Cougar Coupe RWD

    -

    Maintenance & Repair

  • Its hard to start 1 Answer

    Where do i start? It starts. It runs great. No idling problems. When it's cold....its hard to start. That's all.

    1993 Mercury Cougar XR7 Coupe RWD

    -

    Maintenance & Repair

  • 2002 mercury cougar 2.5. fuel and spark but wont start 5 Answers

    2002 mercury cougar 2.5. fuel and spark but wont start.ive checked fuses, coil, replaced fuel filter, crank sensor, cam sensor,.. with the key on I manually move the throttle cable open and a electr...

    2002 Mercury Cougar V6 Hatchback FWD

    -

    Maintenance & Repair

  • Winter VS. Cougar (Vaccum brakes fail and car accelerates) 4 Answers

    I have a 2000 v6 Mercury Cougar. When it got chilly here (0 to -10) the car began to shake and it does not like to idle. When idling the Rpm would move slightly. Driving it it was alright once it warm...

    2000 Mercury Cougar V6 Hatchback FWD

    -

    Maintenance & Repair

  • Cranks but wont start 17 Answers

    My 2001 mercury cougar cranks but wont start. I also noticed that the vents sound like they are working, but no air comes out, while the defrost is still working.

    2001 Mercury Cougar

    -

    Maintenance & Repair

Shortcuts

Search Mercury Cougar Questions

CarGurus Experts

  • #1
    lisagayle
    Reputation
    2,350
  • #2
    Jessica Cornelison
    Reputation
    640
  • #3
    dandyoun
    Reputation
    460
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Ford Thunderbird
35 listings starting at $15,888
Used Mercury Grand Marquis
2 listings

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.