What can be wrong with my car

Asked by Lavaughnjones71 Nov 12, 2014 at 09:51 PM about the 1986 Pontiac Grand Prix LE

Question type: Maintenance & Repair

I have a 1986 grand prix with a 5.0 engine  
the problem is that after driving a while the
check engine light comes on and the car
drive sluggish like it's not going fast and
feel funny when pressing the gas pedal but
when I stop at a light a little smoke comes
from the pipes pull off a nice little cloud.
When I cut the engine off it runs on sounds
like a bunch of fireworks and I smell burned
gas that burns the nose a little how can I fix
this problem

2 Answers
144,755

T_S_T answered 10 years ago

Sound,s like fuel over load,i think engine light may be on because,your O 2 sensor,s are bad,and and telling the ecm to feed more gas to engine,Or your cadilac converter may be stopping up,go have the code,s read for free at part,s store to confirm 02,sensor

Mark helpful

Lavaughnjones71 answered 10 years ago

Don't have a catilac converter note when I cut the engine off and back on the check engine light go off but thanks I'll try that tomorrow

Mark helpful

Your Answer:

Related Questions

  • What can be wrong with my car 2 Answers

    I have a 1986 grand prix with a 5.0 engine the problem is that after driving a while the check engine light comes on and the car drive sluggish like it's not going fast and feel funny when pressi...

    1986 Pontiac Grand Prix LE

    -

    Maintenance & Repair

  • What is wrong with my car? 2 Answers

    So I have a 2004 Pontiac Grand Prix GT with the 3.8 V6 engine. My car chugged then stalled on me, I ran a code and it came up with the cam shaft sensor. I replaced that but didn’t help. It also sho...

    2004 Pontiac Grand Prix GT1

    -

    Maintenance & Repair

  • Whats could be wrong with my car 3 Answers

    I have a 2003 Pontiac grand Prix, which is 13 years old. It makes a loud knocking, squeaking noise in the rear while driving. I hear it mainly on the left drive side. I also can feel the knock when i...

    2003 Pontiac Grand Prix GT

    -

    Maintenance & Repair

  • My car RPM drops while I'm driving. What can be wrong? 2 Answers

    I noticed today while driving on the interstate that my RPM would suddenly drop. What could be the cause of this? I checked my transmission fluid and it's fine.

    2007 Pontiac Grand Prix Base

    -

    Maintenance & Repair

  • No crank just clicks. What is wrong with my car? 2 Answers

    I have a 2007 grand prix. I have put a new battery, a new alternator, a new starter. And replaced the crank sensor and the car won't start. When I turn the key all I get is click click but engine...

    2007 Pontiac Grand Prix GT

    -

    Maintenance & Repair

Shortcuts

Search Pontiac Grand Prix Questions

CarGurus Experts

  • #1
    munron
    Reputation
    8,220
  • #2
    James Sparrow
    Reputation
    7,520
  • #3
    Dorian Hendricks
    Reputation
    6,160
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Pontiac Firebird
14 listings
Used Chevrolet Impala
14 Great Deals out of 115 listings starting at $3,531
Used Pontiac Grand Am
2 listings
Used Chevrolet Corvette
17 Great Deals out of 1,035 listings starting at $14,900
Used Chevrolet Camaro
21 Great Deals out of 321 listings starting at $10,500
Used Chevrolet Monte Carlo
8 listings starting at $24,998
Used Buick Regal
7 Great Deals out of 32 listings starting at $6,990
Used Ford Mustang
42 Great Deals out of 1,255 listings starting at $4,995

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