Start/Idle

65

Asked by Apr 06, 2013 at 02:56 PM about the 1988 Pontiac Fiero Base

Question type: Maintenance & Repair

88 Fiero 4cyl.  Sometimes it acts like maybe it is flooded.  Wont start.  Wait about an hour and it starts but idle bounces between 500-1500 rpm for a minute then smooths out.  Has a new IAC and fuel filter.  There is a little whistle around the Throttle Body but I can't seem to pinpoint it.
Throttle Position Sensor maybe???

4 Answers

100,705

Some of the 2.5's have TPS issue. Look around for the whistle. It might be a intake leak that would lean out the fuel mixture. You can hold a piece of hose to your ear and move it around to find the source.

1 of 1 people found this helpful.
65

Thanks for the reply. :) I have a stethoscope so I took the probe off and used that. The whistle seems to be coming from around the cyl 1 intake. I already have the gasket off so I'll get a new one next week and give that a go. Next thing would be a TPS if it still bounces the idle. We'll see. :)

100,705

Check out the related questions at the bottom of the page. There might be some useful info in them. Thanks for the "Helpful" click.

65

Well, I go the intake gasket on. No more whistle. Still bounces from arount 500-1500 when it starts. Really low/no power ant low rpm/idle especially when it's cold. The engines aren't that cold blooded are they? How about a new TPS? Any ideas/suggestions a welcome.

Your Answer

Fiero

Looking for a Used Fiero in your area?

CarGurus has 58 nationwide Fiero listings and the tools to find you a great deal.

ZIP:

Pontiac Fiero Experts

  • #1
    Steve Neyens
    Reputation
    240
  • #2
    Andrew Welsh
    Reputation
    230
  • #3
    THORNY68
    Reputation
    220
View All

Related Models For Sale

Used Chevrolet Corvette
298 Great Deals out of 20,714 listings starting at $2,990
Used Pontiac Firebird
12 Great Deals out of 777 listings starting at $2,999
Used Chevrolet Camaro
428 Great Deals out of 30,916 listings starting at $3,550
Used Ford Mustang
714 Great Deals out of 38,330 listings starting at $895
Used Mercedes-Benz SL-Class
64 Great Deals out of 2,945 listings starting at $4,500
Used Toyota MR2
23 listings
Used BMW 3 Series
1,175 Great Deals out of 33,351 listings starting at $1,000
Used Porsche 944
109 listings starting at $4,900
Used Jeep Wrangler
305 Great Deals out of 16,323 listings starting at $2,500
Used Porsche 911
144 Great Deals out of 4,942 listings starting at $10,988
Used BMW M3
48 Great Deals out of 1,799 listings starting at $5,995

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.