Question about 1998 Oldsmobile 88

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1999 oldsmobile eighty eight check engine light on code say's misfire on cylinder # 4 any help please

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  • Oldsmobile Master
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The first thing to do is change the spark plugs, it's inexpensive and may solve your problem. If that's not it it could be 100 other things. You''ll need to have someone troubleshoot it.

Posted on Oct 11, 2013

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Posted on Jan 02, 2017

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SOURCE: where is the flasher fuse on a 1999 oldsmobile

you have fuses and relays .on both sides of instrument panel.you akso have them in engine compartment.

Posted on Jul 02, 2009

djquinnspin
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SOURCE: Oldsmobile Eighty Eight Royale S+loppy tilt

will need to get new steering column

Posted on Nov 28, 2009

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SOURCE: 1999 Oldsmobile Eighty Eight has multiple misfires

check your plenum its probably your problem. Its the plastic intake on top of the motor. This part over heats causing holes in it near the egr which causes antifreeze to pour into your exhaust and making it look like you blew a head gasket, and also allows your spark plugs get wet causing the miss fire. To check take the throttle body off and see if there is antifreeze sitting on top off the motor you'll need a flash light. I had the same problem You can check out info on the internet about this famous problem gm had. If you know how to work on cars its easy to do it yourself. The part cost about 200 or more

Posted on Feb 22, 2010

  • 1 Answer

SOURCE: p0304 cylinder 4 misfire

2001 oldsmobile silhouette van misfire on cylinder 4

Posted on Apr 19, 2011

  • 252 Answers

SOURCE: How to Check Electronic Control Module on 1999

if your ecu is faulty a code will be thrown aka check engine light come one other than that there is no way to test a ecu its just a prosses of elimination


i hope it helps

Posted on May 09, 2011

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1 Answer

How to Check Electronic Control Module on 1999 Oldsmobile Eighty Eight


if your ecu is faulty a code will be thrown aka check engine light come one other than that there is no way to test a ecu its just a prosses of elimination


i hope it helps

May 09, 2011 | 1999 Oldsmobile 88

1 Answer

Check engine light on -- missing # 4 & 6 cylinders


Hi, I recommend a compression test. Misfires at adjacent cylinders can indicate a problem with the head gasket.

Please see my tip at http://www.fixya.com/cars/r6715318-causes_gasoline_engine_misfires . These are generic instructions. If you get stuck or need specific instructions for your car, please get back to me with model, year and engine info.

Feb 04, 2011 | 1996 Oldsmobile Eighty Eight

1 Answer

I am about to buy a 1999 oldsmobile eighty eight and i need to know what are the engine size of it


Hello: It is a V-6 3800 engine (3.8 liter) When driven properly it will give very good fuel mileage and performance.

Dec 28, 2010 | 1999 Oldsmobile Eighty Eight

1 Answer

1999 oldsmobile eighty eight died while driving.Started right back up but check engine light is on and ides weird sometimes


have car scanned to get problem code.if no scanner, go to any auto parts store and they will scan it for free. sounds like a bad crank sensor!! so get scanned to be sure.

May 25, 2010 | 1999 Oldsmobile Bravada

2 Answers

1999 Oldsmobile Eighty Eight has multiple misfires with pistons. What could be the problem?


check your plenum its probably your problem. Its the plastic intake on top of the motor. This part over heats causing holes in it near the egr which causes antifreeze to pour into your exhaust and making it look like you blew a head gasket, and also allows your spark plugs get wet causing the miss fire. To check take the throttle body off and see if there is antifreeze sitting on top off the motor you'll need a flash light. I had the same problem You can check out info on the internet about this famous problem gm had. If you know how to work on cars its easy to do it yourself. The part cost about 200 or more

Dec 30, 2009 | 1999 Oldsmobile Eighty Eight

1 Answer

I have two codes on my 1995 oldsmobile eighty-Eight P1640 P1670 what do they mean.


P1640 Driver 1-Input High Voltage
P1670 Driver 4
have a look here for more codes and info......if this helps, would you leave feedback for me please....thanx
http://www.engine-light-help.com/oldsmobile-check-engine-light.html

Sep 16, 2009 | 1995 Oldsmobile Eighty Eight

1 Answer

Code p306 misfire on injector 6


Random misfires are usually caused by a leaking vaccum pipe, and will only be apparent at idle and sometimes at low engine speeds under part throttle.
Isolated misfires are usually caused by a faulty injector, coil pack, ignition lead, or low compression.

Well, you're going to have to check the spark plug,  spark plug wire, the coil pack, low compression, and the ignition lead, which only really leaves the injector, or even an intake leak at the offending cylinder. 

Start the engine and then spray intake spray or the like around the intake at the offending cylinder and see if the engine note changes. If it does, then you have an intake leak, otherwise, they need to check the injector in the offending cylinder. 

Good luck and hope this helps. It might just be time for a tune up: new spark plugs and wire or some fuel injector cleaner every fill up for now.

May 05, 2009 | 1998 Oldsmobile Eighty Eight

1 Answer

Intermidient ''bogging''


It could be your computer. Find the computer (sometimes behind the glove box) it should be a silver box with lots of wires. do a tap test on it (gently tap it with a screwdriver handle while the engine is running if the misfire comes and goes while tapping it needs to be replaced)

Nov 22, 2008 | 1995 Oldsmobile Eighty Eight

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