What do you think could cause this ?

Asked by Jul 05, 2014 at 11:25 AM about the 1999 Oldsmobile Eighty-Eight 4 Dr LS Sedan

Question type: Maintenance & Repair

I've changed everything I've even
thought could be the problem - new
crankshaft senior, fuel preasure
regulator, ignition mogul and still the
problem exist with no check engine
light on. If the car is cold it will start
and run 4 about 20min as soon as the
car warms up it stale it will restart
then stale right away when I push the
gas it sputors a little then stale black
smokes blowing out the exhaust
when the car start 2 run rough and
when it stale a solfurry smell.

6 Answers

110,985

How long since you have checked your air filter, plugs, plug wires and coils? Black smoke is unburnt fuel. Sounds like you might have a coil or two going bad. Find out which one/ones are not firing.

2 of 2 people found this helpful.

Air filter clean and changed plugs and wires 1yrs never changed coil pack its sounds like the cars running out of gas fuel pump running and car has full tank

110,985

Black smoke typically means unburnt fuel. Your coils could be arcing out once they get hot. Inspect them for carbon tracking.

1 of 1 people found this helpful.
110,985

When you turn your key to just the on position does the check engine light come on in test mode? If not bulb could be bad. If that the case have the codes read.

check engine light comes on when it feels like it was on yesterday calleda friend with a scanner and when he came this morning light was off no codes came up on scanner its 1 of those problems

67,255

Sounds like it's loading up with fuel. Could be a bad coolant temperature sensor, faulty fuel injectors, bad fuel pressure regulator, or even just a simple tune up. HTH. -Jim

1 of 1 people found this helpful.

Your Answer

Add photo

Related Questions

Eighty-Eight

Looking for a Used Eighty-Eight in your area?

CarGurus has 84 nationwide Eighty-Eight listings and the tools to find you a great deal.

ZIP:

Search Oldsmobile Eighty-Eight Questions

Oldsmobile Eighty-Eight Experts

#1 COMETGUY61
COMETGUY61
Reputation 170
#2 dandyoun
dandyoun
Reputation 130
#3 T_S_T
T_S_T
Reputation 110
View All

Related Models For Sale

Used Oldsmobile Cutlass
125 listings starting at $1,600
Used Chevrolet Impala
591 Great Deals out of 34,068 listings starting at $899
Used Chevrolet Monte Carlo
20 Great Deals out of 1,419 listings starting at $1,995
Used Cadillac DeVille
4 Great Deals out of 1,627 listings starting at $1,988
Used Buick LeSabre
19 Great Deals out of 1,920 listings starting at $1,000
Used Buick Regal
131 Great Deals out of 11,077 listings starting at $2,999
Used Buick Park Avenue
455 listings starting at $4,991
Used Chevrolet Malibu
1,060 Great Deals out of 77,910 listings starting at $1,500

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.