Question about Oldsmobile Alero

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My name is derrick my 2001 2.4 Alero is running as if its mis fireing i changed the spark plugs and one plug looked as if it was dipped in oil the car does not smoke so i dont know if its my piston rig or valve cover or if thats why the car runs so bad or if its enjector or what,could you please help,Thanks.

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I don't see where we can help much

You need to have a cylinder leak down test done

Also, have all the vehicles sensors,ignition etc tested, by
someone really good with diagnostic testing

In other words,you need someone to really get
involved and make love to your entire engine

Finding that person and paying them for their
services won't be easy

Posted on Mar 31, 2011


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1 Answer

Looks like gas in oil looks like 3 spark plugs firing 3 not. mis when driving hard to start when hot.

You say it looks like gas in oil? Does it smell like gas? If the oil is milky and thick, then you have water in your oil. If the 3 plugs that are not firing are on the same side, then you have a blown head gasket.

Jan 27, 2011 | 1994 Chevrolet S-10 Blazer

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Replaced sparkplugs and sparkplug wires, now runs rough. I checked connections all tight. check firing orger, looks right. run good till I touched it. Help.

Check the firing order with the firing order diagram that I have uploaded, and if that does not solve the problem then remove the spark plugs and be certain that there is an even spark plug gap between all of the spark plugs, (see the emission label under the hood for the correct spark plug gap) and be certain that there is not any split-fire or multi-fire spark plugs installed in the engine, because those plugs will not work with an OBD-II system, and a random mis-fire is the least that they will cause if installed in an OBD-II controlled vehicle.


Aug 18, 2010 | 2001 Ford Taurus

2 Answers

Oil around spark plug and car mis fires

The oil around the plug may be a sign that the valve-cover needs a new gasket. Oil on the plugs can cause a misfire but it is important that you check everything over. The misfire could be due to defective wires, boots, coils, spark-plug/s, injector/s, and so much more. Take a look at the cars maintenance history, Maybe it is over due for a complete tune-up or oil change. The car is 11years old, how many miles are on it? How was it running before this?

Apr 29, 2010 | 1999 Lincoln Town Car

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Iam having a miss fire every time i start my car on my 2001 chevy impala how do i set the timing with out taking it to the dealer i changed the plugs and the wiring and the pressure regulator still nothing...

The timing is not settable in a traditional sense of the days of distributors. The spark timing is controlled by the computer. If the computer is getting a bad signal, your spark timing will be off. Generally, a mis-fire isn't caused by bad spark timing. A sticking fuel injector, a bad or improperly seated spark plug wire, or a bad sensor will cause your mis-fires.

Apr 23, 2010 | 2001 Chevrolet Impala

1 Answer

My 2001 oldsmobile alero has a cylinder #4 misfire

The misfire can be caused by an open injector , injector pulg or circuit, bad spark plug ro wire lost compression as a burnt valve blown gasket ( antifrezze foulingthe sparplugs ) Low compression from overheating over mileage or flooding from injector leaking. Take out the number 4 plug and any other and compare what they look like if they don't look the same swich them and see if the miss moves to the cyclinder that the #4 plug moved to. If it does run good or misses on the new cyclinder change the spart plug with new and then look for loss of coolant or oil on plug wire carrect leak and try again

Mar 21, 2010 | 2001 Oldsmobile Alero

1 Answer

Spark? cylinder head? stuck valve? cylinder wall porosity?

That cap was most likley broken upon pulling off. You need new wires.

Jul 18, 2009 | 2001 Oldsmobile Alero

1 Answer

I got a 1.4 zetec fiesta and its miss firing and no power i was told it could be my valves but its not smoking or anything please help

If you have a mis-fire in your pistons, you need to change your spark plugs. And you might as well change your spark plug wires. Spark plugs can run you about... anywhere from $2 - $90. Take a trip to Advanced Auto Parts. You can get spark plugs for about $7 dollars a piece. With a 1.4 L engine you only have 4 pistons. Spark plug wires will run you a little bit more. Not sure. They are different for every car so im not sure

Apr 09, 2009 | 2001 Ford Focus

4 Answers

2001 oldsmobile alero

I have a car in the shop right now same thing - it is being caused by a misfire. Need a real technition to diagnose the problem (auto zone - advance auto can't diagnose the problem - only read the code)
mine was caused by a failing fuel injector. good luck

Jun 26, 2008 | 2001 Oldsmobile Alero

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