Car doesnt want to stay running
185

Asked by tbosamuel May 09, 2015 at 04:20 PM about the 1984 Pontiac Fiero SE or Indy

Question type: Maintenance & Repair

I have an 84 Pontiac Fiero 2.5L 4cyl engine. Ive cleaned the TBI system along with a
rebuild kit, got a new Fuel Pressure Regulator, soaked the injector, and put fresh gas in
it. its sat for a few years but it cranks and will run, sometimes itll run for 5-10 seconds
and others it will run for 60-90 seconds. I think it could be the TPS, or it could be a
vaccum leak, but heres the thing. When i do have it running, i put my foot on the gas
and instead of reving up, it bogs down and then stalls or sometimes returns to an idle
and then stalls. I need help!!!

5 Answers
143,825

T_S_T answered 9 years ago

Sound,s like a fuel issue,have you checked the fuel pressure?Pump may be bad.

Mark helpful
185

tbosamuel answered 9 years ago

when i disconect the fuel line from the TBI it gets plenty of gas. how should i test the preassure?

Mark helpful
143,825

T_S_T answered 9 years ago

You will have to rent a pressure checker unless you have one,undo fuel line at tb and hook it in,turn car over,will give you a pressure of at least 34 psi and hold it,if not replace the fuel pump.

1 people found this helpful.
Mark helpful
1,605

Astre answered 8 years ago

Ignore James Rhodes, I am still driving my three Pontiacs. They are 1976-1979 H Body cars. Get a clue James.

Mark helpful
200

Stan answered 8 years ago

James Rhodes is an idiot. do not listen. Check your vacuum lines to see if a hole somewhere. Feel around and listen for a hiss. I can almost guarantee that is the issue.. that or a sensor has failed such as O2 or a temp.

1 people found this helpful.
Mark helpful

Your Answer:

Related Questions

  • Car doesnt want to stay running 5 Answers

    I have an 84 Pontiac Fiero 2.5L 4cyl engine. Ive cleaned the TBI system along with a rebuild kit, got a new Fuel Pressure Regulator, soaked the injector, and put fresh gas in it. its sat for a few y...

    1984 Pontiac Fiero SE or Indy

    -

    Maintenance & Repair

  • Car doesn't stay running 14 Answers

    I have a 4-cyl pontiac fiero se. It's been sitting for about 7 years. when I first started to work on it, it wouldn't run. I took the carb apart, cleaned all the parts, soaked the injector, and pu...

    1984 Pontiac Fiero SE or Indy

    -

    Maintenance & Repair

  • What am I missing car won't keep running 2 Answers

    Car won't stay running motor is a GM rebuild about 5,000 miles on it. If I spray fuel into the throttle body it will run for a few seconds. I've changed the computer, fuel pump, fuel rail, injectors. ...

    1986 Pontiac Fiero SE

    -

    Maintenance & Repair

  • idle rough and cuts off after running car for a extended period of time 2 Answers

    V6 engine, Car runs great but after running car for a period of time, when stopping it starts to idle rough and cuts off, starts right back up with no problem, sometimes when put back in gear cuts bac...

    1988 Pontiac Fiero Formula

    -

    Maintenance & Repair

  • Battery draining when connected to car. 2 Answers

    Whenever I hook my full, good battery that has no dead cells at all up to the car, it just completely drains out. No lights or anything are on in the car. Fuses are good and the relays have been rep...

    1987 Pontiac Fiero

    -

    Maintenance & Repair

Fiero

Looking for a Used Fiero in your area?

CarGurus has 27 nationwide Fiero listings and the tools to find you a great deal.

ZIP:

Own this car?

Share your experience with others.

1984 Pontiac Fiero

Write a car review

Review another car

Shortcuts

Search Pontiac Fiero Questions

CarGurus Experts

  • #1
    THORNY68
    Reputation
    1,100
  • #2
    Steve Neyens
    Reputation
    600
  • #3
    Andrew Welsh
    Reputation
    510
View All

Know more, shop wisely

Search

Related Models For Sale

Used Pontiac Firebird
11 Great Deals out of 371 listings starting at $5,950
Used Chevrolet Camaro
592 Great Deals out of 9,175 listings starting at $4,899
Used Chevrolet Corvette
747 Great Deals out of 12,481 listings starting at $3,200
Used Ford Mustang
914 Great Deals out of 22,592 listings starting at $1,000
Used Toyota Camry
2,022 Great Deals out of 34,562 listings starting at $1,000
Used Toyota MR2
20 listings starting at $14,900
Used Toyota Supra
39 Great Deals out of 699 listings starting at $34,999

Used Cars For Sale

1984 Pontiac Fiero SE or Indy For Sale
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.