Service Engine Soon light

Melissa Stapley
95

Asked by Aug 01, 2013 at 10:12 AM about the 1987 Pontiac Fiero GT

Question type: Maintenance & Repair

I purchased a near mint 87 Fiero GT in May of this year. It only has 82k miles on it. I
haven't driven it much (its a 2nd car) but this week I decided to drive it to work for a few
days. While driving the car I noticed that the service engine soon light comes on and
flickers off. The oil gauge is a bit jumpy and the light comes on and shuts off
sometimes when I stop at  a light or when the car is idling. I don't know if this is
something to worry about. I just had an oil change done on the car a month or two ago
and used synthetic oil and had the filters replaced. When we bought the car, our
mechanic checked it out, said in was great shape and there where no mechanical
problems at all. The hard thing is that I know these cars can be temperamental (I
bought an 87 when it was new and had it for many years) but since this one is new to
me, I don't know if it is a 'quirk' of the car or something more serious. Should I be
worried?

12 Answers

Look over your maintenance records to see if the timing chain or belt had been tended to these are maintenance items and if the chain is worn would have lousy performance...is this a 4 cylinder of 6?

1 out of 1 people think this is helpful.
Melissa Stapley
95

Its a 6 cylinder. Thank you for your help. I will check that.

1 out of 1 people think this is helpful.

I guess the "GT" makes it a six cylinder~

Yes...confirmed...you have a timing chain...a good one DOUBLE chain for reliability...I would not worry about this, but other maintenance items...check the owner's manual there has got to be a "mainenance checklist for your 80,000 mile maintenance...repack wheel bearings change filters of all types...fresh lightbulbs...new wipers~ check your manual and records~ you're going to be okay with your current timing chain unless it starts to rattle noticeably~

might be the 02 sensor is due for replacement...have your trouble codes read by a auto parts store...think this one is a OBD-I and takes a bit of a fashion to read the codes~

Melissa Stapley
95

Wow. Thank you! I really appreciate your help. Luckily, I was given all of the original paperwork and manuals when I bought the car. Now I know where to start. Thanks again :O)

1 out of 1 people think this is helpful.
tennisshoes
71,525

Have the oil pressure checked hot at idle, it may just be a bad oil pressure sender.

1 out of 1 people think this is helpful.
Melissa Stapley
95

Ok I will try that too. Thank you

2 out of 2 people think this is helpful.
Tom Demyan
195,045

Scan the car for codes since the SES light is on and off. The code or codes will be stored in memory.

Melissa Stapley
95

Will do thank you Tom

Sean Micheals
0

This looks exactly like the Fiero GT my friend sold in May. The light in his went off all the time too but it worked great. What city did you buy this car in because that might be the car I almost bought.

Seamus091414
0

I have an 88 Fiero Formula. Light comes on, especially during a car wash. Goes off in a minute. Fiero's are known for electrical gremlins, like the temperature gauge being miswired with the warning light. Don't worry.

Your Answer

Add photo

Related Questions

  • My 1987 pontiac fiero GT stalls out when it gets very hot outside. 8 answers

    The heat gauge is not reading hot, it just stalls whenever its hot out, just started this summer. Already bought a air control valve, and O2 sensor. No service lights are on or anything.

    1987 Pontiac Fiero GT

    -

    Maintenance & Repair

  • check engine light problems? 1 answer

    check engine light has burnt out twice in last six months and has not been driven that much.

    1985 Pontiac Fiero GT

    -

    Maintenance & Repair

  • Engine swaping 5 answers

    I have an 86 Fiero SE with a 2.8 that I destroyed. I bought another 2.8 from a blaser just for the block, but today as I was ripping the original fiero motor apart I noticed that the right side motor...

    1986 Pontiac Fiero SE

    -

    Maintenance & Repair

  • Fiero '84 2m4 se automatic how to know if engine and starter need to be replaced? 4 answers

    It was driven with check engine light on for 15 min, there were no oil at all, then added 4 qts of oil, it started and drove fro 15 min, it died and tower to auto shop, mechanic says Engine and Star...

    1984 Pontiac Fiero SE or Indy

    -

    Maintenance & Repair

  • service engine soon light came on 1 answer

    service engine soon light is on

    1996 Pontiac Trans Sport 3 Dr SE Passenger Van

    -

    Maintenance & Repair

Fiero

Looking for a Used Fiero in your area?

CarGurus has 86 nationwide Fiero listings and the tools to find you a great deal.

ZIP:

Search Pontiac Fiero Questions

Pontiac Fiero Experts

#1 THORNY68
THORNY68
Reputation 200
#1 Steve Neyens
Steve Neyens
Reputation 200
#1 dandyoun
dandyoun
Reputation 200
View All

Related Models For Sale

Used Pontiac Firebird"
16 Great Deals out of 875 listings starting at $2,995
Used Chevrolet Corvette"
334 Great Deals out of 18,950 listings starting at $2,995
Used Chevrolet Camaro"
569 Great Deals out of 35,530 listings starting at $3,894
Used Ford Mustang"
701 Great Deals out of 42,029 listings starting at $1,500
Used Toyota MR2"
21 listings
Used Dodge Charger"
545 Great Deals out of 31,615 listings starting at $1,500
Used Ford F-150"
2,524 Great Deals out of 194,305 listings starting at $1,600
Used Pontiac Grand Prix"
44 Great Deals out of 4,295 listings starting at $1,390
Used BMW 3 Series"
1,184 Great Deals out of 38,305 listings starting at $1,450
Used Jeep Wrangler"
284 Great Deals out of 13,787 listings starting at $2,795