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

101,565

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 out of 2 people think this is 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

101,565

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

1 out of 1 people think this is helpful.
101,565

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

56,715

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 out of 1 people think this is helpful.

Your Answer

Add photo

Related Questions

  • what do you think could be causing this? 1 answer

    This is one of those problems so far I have replaced the fuel pressure regulator, crankshaft senior, coil packs plugs and wires only 1yrs old and air filter clean. if you start the car when it is...

    1999 Oldsmobile Eighty-Eight 4 Dr LS Sedan

    -

    Maintenance & Repair

  • My car won't start unless I disconnect the battery and reconnect after a few minutes. any ideas? 2 answers

    Started Yesterday After I Had To Slam My Brake To Avoid An Accident. The car immediately stalled. No power at all. Looked it the manual to see if it had a kill switch but couldn't find nothing. Af...

    1998 Oldsmobile Eighty-Eight

    -

    Maintenance & Repair

  • Dash Lights on 1998 Oldsmobile 88 4 answers

    I am having a dash light problem on my 1998 88. The dash lights will be very dim (too low to make out the instrument readings) at night and cannot be seen in the daytime. That also causes the radio an...

    1998 Oldsmobile Eighty-Eight

    -

    Maintenance & Repair

  • My 88 Oldsmobile ran out of gas and now it won't crank.what to do? 4 answers

    1995 Oldsmobile Eighty-Eight

    -

    Maintenance & Repair

  • What can cause oil to shoot into the carburetor? 6 answers

    My 1980 Cutlass Supreme, equipped with the original V6 with 77,6xx original miles, has oil in the carburetor... I had an oil change about 300 miles ago (two months ago), it is now black, thick, and lo...

    1980 Oldsmobile Cutlass Supreme

    -

    Maintenance & Repair

Eighty-Eight

Looking for a Used Eighty-Eight in your area?

CarGurus has 75 nationwide Eighty-Eight listings and the tools to find you a great deal.

ZIP:

Search Oldsmobile Eighty-Eight Questions

Oldsmobile Eighty-Eight Experts

#1 joemom
joemom
Reputation 150
#2 dandyoun
dandyoun
Reputation 130
#3 T_S_T
T_S_T
Reputation 100
View All

Related Models For Sale

Used Chevrolet Impala
846 Great Deals out of 34,369 listings starting at $1,800
Used Buick Regal
198 Great Deals out of 10,624 listings starting at $2,195
Used Chevrolet Malibu
1,011 Great Deals out of 77,144 listings starting at $2,795
Used Buick Park Avenue
436 listings starting at $3,975
Used Buick LeSabre
9 Great Deals out of 2,054 listings starting at $1,768
Used Pontiac Bonneville
588 listings starting at $2,298
Used Chevrolet Camaro
621 Great Deals out of 38,657 listings starting at $2,995
Used Honda Accord
1,078 Great Deals out of 74,908 listings starting at $969
Used Mercury Grand Marquis
26 Great Deals out of 2,029 listings starting at $1,500