1984 Pontiac fiero wont start

40

Asked by Apr 16, 2017 at 04:26 PM about the 1984 Pontiac Fiero SE or Indy

Question type: Maintenance & Repair

I did the spark plug and wire on my Fiero
then i try to turn it on. The engine made a
loud popping sound like a gun shot. So my
dad fixed it and now it still don't want to turn
on. It sounds like it want to turn on but it
doesn't. I hear the starter, it got gas, the
battery is new and still nothing but wen i try
to turn it on i smell gas. I don't know was
wrong.   

9 Answers

70

Need a little more info, is your car fuel injected or naturally aspirated? And as far as your battery being brand new I would still check it I've bought batteries that came off the shelf bad. It happens.

1 people found this helpful.
40

So far i tryed 3 different batteries. It still doesn't run Nd is TBI

1 people found this helpful.
70

I don't understand your answer. Nd is TBI? I still need to know if it's FI or Naturally aspirated.

1 people found this helpful.
40

Throttle body injection

1 people found this helpful.
83,875

Run a compression test. The backfire sounds like a valve timing issue. If all cylinders test very low or zero it's jumped timing. HTH. -Jim

1 people found this helpful.
40

Yea it backfire

1 people found this helpful.
70

Have you tried putting the old sparkplug wires back on. To make sure it's not your new wires?

1 people found this helpful.
40

Yea i have but the old one's nd nothing but my uncle told me it was the timing belt. But how can I tell if thats the problem??

1 people found this helpful.
83,875

Compression test! If all cylinders test very low or zero it's jumped timing. You don't have a timing belt you have timing gears as pictured. Most likely the plastic "silent" camshaft gear has broken teeth and caused it to jump valve timing. If you don't have the compression test kit or can't borrow one from your local auto parts store (many stores lend tools) you can check the ignition timing with a timing light while cranking the engine. Ignition timing and valve timing are relative to each other. So if the valve timing gears have jumped, you'll see it as severely retarded (late) ignition timing. DO NOT move the distributor in an effort to adjust the timing so it will run!! Doing so only adjusts the IGNITION timing, NOT the VALVE timing!! If you determine it is the timing gears that have jumped don't buy the set with the "silent" camshaft gear. Get the all metal gear set. It'll last much, much longer!! Keep us posted! HTH. -Jim

2 people found this helpful.

Your Answer:

Fiero

Looking for a Used Fiero in your area?

CarGurus has 2 nationwide Fiero listings and the tools to find you a great deal.

Postal Code:

Pontiac Fiero Experts

  • #1
    Andrew Welsh
    Reputation
    280
  • #2
    THORNY68
    Reputation
    260
  • #2
    Steve Neyens
    Reputation
    260
View All

Related Models For Sale

Used Chevrolet Corvette
24 Great Deals out of 800 listings starting at $12,957
Used Ford Mustang
50 Great Deals out of 1,531 listings starting at $2,900
Used Pontiac Firebird
19 listings starting at $19,995
Used Chevrolet Camaro
12 Great Deals out of 993 listings starting at $10,500
Used Dodge Challenger
34 Great Deals out of 862 listings starting at $9,750
Used BMW 3 Series
112 Great Deals out of 2,224 listings starting at $1,500
Used Porsche 911
15 Great Deals out of 233 listings starting at $16,980

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