Question about 2000 Oldsmobile Alero

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Low idling i just now got the spark plugs changed and its idling low and puting

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Check all spark plug wire connections and make sure they are on tight. also make sure plugs are tight and gapped properly.

Posted on Feb 15, 2012


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2005 buick lacrosse 3.8 changed spark plugs coils N wires still shakes and sputters rough idle

The basics for vehicle with rough idle, check for a leak of some kind, fuel--egr--vacuum leak. How long since an over-all tune-up? You can check the idle air system? Any applicable trouble codes? To check codes yourself, at the least, you need an obd2 code reader.
If spark issue, sometimes you can use a digital multimeter to do some testing, low tech, non--invasive. With digital multimeter on low voltage setting, engine idling, touch spark plug wires, one at a time, do not penetrate insulation, don't take spark plug wire loose, it's an inductive reading. The point is if you get a reading bouncing off zero, that is where you start testing. I know you changed the coil/s, but sometimes, you need to check ignition module. I'm not saying that module is faulty, I don't know.

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Have a 2001 diamante originally had a low idle. Changed the idle control, spark plugs, plug wires, rotory cap. Also changed all vac hoses. Now am having a high idle when warmed up. How do I fix

What do you mean you Changed the idle control ? You changed the IAC - valve ,idle air control valve ? Did you do a relearn ? Or did you change factory preset idle ?

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Cylinder #1 is not working. the car is idling rough I can unplug the injector or the spark plug wire for cylinder #1 and it does not change the idle. I have tested and have power to the injector plug and I...

Check for a dead spark plug. Check for injector pulse. If both good, better put a compression gauge on the cylinder and check for low compression.

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You can adjust the idle screw that is at the end of the accelerator cable to increase the idel speed.

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Just got the spark plugs changed and it started idling low and puting?

sounds like a wire is crossed, not making good contact, or plugs are gapped wrong...check all your wire connections..did this help?

Feb 14, 2012 | 2000 Oldsmobile Alero

1 Answer

Audi a3 1.8 non turbo 1999. car idles very ruff, i changed the spark plugs with the last service last week. could this be a faulty spark plug? it has a very rich fuel smell, when idling

A rough idle can be due to poor timing./fuel tuning.So an examination of the spark plug will give the indication of the firing of all the cylinders with which we can confirm . If the spark plugs are burnt then the fuel mixture is good but if there is a black soot or soggy smear then the fuel settings are high or the spark intensity is low.
So you need to check on the fuel pressure-- have the pump calibrated .
Check the spark intensity , it must be good or the HT coils or the electronic ignition is faulty as the trigger can be low. Check also the timing. it is good to have the job done at the service outlet.

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1 Answer

My car has been idling low. i have changed the plugs.

Usually when you change the plugs that you also should change the distributor cap and rotor as well. When you changed the plugs with hopefully with the Alero specifications type manufacturer spark plugs that you have to also change the timing belt too is why your idling is low. All spark plugs have a gap in them so your car special plugs should too. You might have the wrong spark plugs with the wrong gap in them so you can ask autozone for the gap specs for your year, make and model plus you can buy the right spark plugs there too. The spark gap will change the timing of car depends on the gap.

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Why does my 1995 GMC Jimmy shake when Idling?

possibly misfiring or idle set too low. Is there any white smoke coming out of the tailpipe ?

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Idle speed for my 2002 corolla 4zz-fe engine is low and unevan

Sounds like fuel filter to me. Change that and see.

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25 tdi quattro

it may be the spark plugs/coils my car would idle very low and it would shake the whole car and i went and took it in and they told me that it most likely was the coils and spark plugs and they changed them and the studder never came back

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