Car doesnt want to stay running

105

Asked by 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!!!

7 Answers

71,215

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

105

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

Pontiac is dead and buried for a VERY good reason.

71,215

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.

705

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

Listen up dawg! Pontiac may have had a few nice looking cars, but underneath that sheetmetal was sub-standard build quality and poor reliability...just a slight bit better than Dodge! IF Pontiac was soooo wonderful, then WHY did they close up shop? Answer: Garbage mobiles like the Aztek, G6, Montana, etc. I love this webpage: http://jalopnik.com/5231336/seven-cars-that-killed-pontiac

1 of 1 people found this helpful.
70

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.

Your Answer

Fiero

Looking for a Used Fiero in your area?

CarGurus has 65 nationwide Fiero listings starting at $3,500.

ZIP:

Pontiac Fiero Experts

  • #1
    Andrew Welsh
    Reputation
    250
  • #2
    Steve Neyens
    Reputation
    240
  • #3
    THORNY68
    Reputation
    220
View All

Related Models For Sale

Used Pontiac Firebird
10 Great Deals out of 723 listings starting at $1,649
Used Chevrolet Corvette
134 Great Deals out of 16,100 listings starting at $3,000
Used Ford Mustang
413 Great Deals out of 41,514 listings starting at $1,488
Used Toyota MR2
18 listings
Used Chevrolet Camaro
499 Great Deals out of 30,902 listings starting at $995
Used Nissan 300ZX
117 listings starting at $3,995
Used Toyota Supra
60 listings
Used Dodge Charger
440 Great Deals out of 34,714 listings starting at $2,000
Used Ford Thunderbird
24 Great Deals out of 1,054 listings starting at $7,500

Used Cars 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.