Question about 1985 Pontiac Fiero

1 Answer

87 Fiero 4 cylinder. Starts and idles fine but no ability to accelerate, no power. Have drained old fuel and replaced with fresh. New fuel filter, new air filter, new plugs am going to change out the oxygen sensor tonight. Any other ideas?

Posted by on

  • GasparMacari
    GasparMacari May 11, 2010

    did u tried to mannually move the throttle ? what happend when u do?



1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that got 5 achievements.


    An expert that has over 500 points.


    An expert whose answer got voted for 20 times.

  • Expert
  • 198 Answers

Possibilities:Timing is retarded,TPS (throttle position sensor) is malfunctioning.Make sure there isnt a vacuum leak(check vacuum lines and intake for whistling or air sucking)

Posted on Nov 18, 2009

Testimonial: "Thanks, I will give these a try."


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya Mechanic can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repair professionals here in the US.
click here to Talk to a Mechanic (only for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

4 Answers

Why does my truck lose power and won't accelerate

its probably a clogged up fuel filter if not your pvc valve vaccum try that good luck

Apr 03, 2015 | Cars & Trucks

1 Answer

What cause a sluggish acceleration on the 87 fiero

poor fuel pressure and or volume, poor fuel quality, ignition timing is off, bad throttle position sensor(TPS), dirty air filter, fuel injector/s dirty or plugged or not functioning properly, bad manifold air pressure sensor(MAP). just some things that can cause your problem. I would suggest taking your car to a shop to have it diagnosed unless you have the testing equipment and specs to know what is within specs.

Sep 25, 2014 | 1987 Pontiac Fiero

1 Answer

Car starts and idles but when you put it in gear is stalls. will not run it is an 87 fiero gt 2.8

your torque is not unlocking unplug the electric connector youll be fine as the torque convertor is only thing thats electric controlled

Jul 08, 2011 | 1987 Pontiac Fiero

1 Answer

Old '87 ranger been sitting in folks yard few years. fires up fine, but spits and sputters going down the road

Old fuel in tank, fuel filter clogged, plugged/clogged carb. or fuel injectors.

1. Drain fuel from tank and replace with new fuel with SeaFoam or Lucas

2. Repace fuel filter

3. With engine running at a high idle and air cleaner off, spray or pour carb/fuel injection cleaner into carb/fuel injectors.

If problems persist, check plug wires for cracks and/or breaks. Pull spark plugs checking for fouling.

Apr 09, 2011 | 1987 Ford Ranger

1 Answer

2003 f150 supercrew 2wd 4.6 romeo has 62000 miles.Pinging noticed when thermostat opens after cold start.Pinging occurs with most throttle positions/loads except full throttle (cant hear it) or idle.EGR...

do not use any fuel additives at all. and only use 87 octane fuel nothing higher. 4.6 and 5.4 ford engines do have a pinging sound especially with a load. but it is normal

Aug 19, 2009 | 2003 Ford F150 Regular Cab

4 Answers

Fiero idles but stumbles on acceleration

to me this sounds like your ignition timeing is off because of the hard start and the no power when accelerating. I would definently check the timing out on it
hope this helps you out

Apr 30, 2009 | 1985 Pontiac Fiero

Not finding what you are looking for?
Cars & Trucks Logo

Related Topics:

327 people viewed this question

Ask a Question

Usually answered in minutes!

Top Pontiac Experts


Level 3 Expert

77186 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22265 Answers

Jeffrey Turcotte
Jeffrey Turcotte

Level 3 Expert

8737 Answers

Are you a Pontiac Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides