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Rough idle on 2008 malibu

The idle bounces ramdemly tried cleaning the mass airflow senser and the throttlebody any other thoughts

Posted by Anonymous on


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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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SOURCE: Mass Airflow Sensor 2005 Chevy Malibu. 2.2 ltr.4 cyl.

The MAF is in the flex hose that delivers air to the engine, it has a 5 or 6 wire connector going to it.

Posted on Nov 19, 2008

  • 1214 Answers

SOURCE: 2003 Tahoe Running rough, Idle irratic, Ck engine

Yes, replace the MAF, then check if the lean condition goes away. It should.

MAF's are sensitive to cleaning. Sometimes it works, other times it doesn't.

Posted on Dec 11, 2009

  • 749 Answers

SOURCE: How to Install a Mass Airflow Sensor on a 2008

Typically newer GM models have the mass air flow sensor in line from the induction hose that goes to the throttle body from the air filter box.Many are just held in place by hose clamps requiring either a ratchet with a 5/16 socket or a standard screwdriver to loosen it.

Posted on May 13, 2010

Testimonial: "Thank you very much for the help..trying to save some money and do it my self...hope it doesn't end costing me more because I'm going to try it my self."

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SOURCE: 1989 corvette, replaced mass airflow

on the back of the throttle butterfly is a sensor that controls the amount of fuel and it has carbon paths inside it ands i think this is the one causing your problem ,

Posted on Oct 12, 2010

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try cleaning the mass airflow sensor, and change the PCV valve. I would replace the PCV valve first cause that could cause it and its a cheap and easy fix, could be stuck and gunked up or clogged and barely any air is moving into the intake, if you clean the mass airflow sensor be careful not to touch the element and not to drop it handle with care it's expensive and is a fragile part, and use mass airflow spray cleaner only. Try that see if it fix's the problem if not I would check your vacuum lines particularity the ones going in and out of the intake from the pcv valve and the one going from the airbox to the engine, then check if any of the other small lines from your EGR are all connected and not cracked broke or damaged

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Same problem in a 2004 MPV

Hi there im in australia and i have come across a few mazdas not just the mPV that have this same problem. if it was the air flow meter you would be able to accelerate as the computer wouldnt pickup that more air is entering the engine therefore it wouldnt compensate with fuel! try disconnecting the battery with the negative terminal for 60 seconds. if that dosnt work try cleaning the throttle body and IAC and get someone with a decent scantool to reset the idle. Hope this Helps. Regards Ben

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It sounds like a few different things or a combination of more than one.

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does it do this more when its on a cold start up? if so they is a updated intake gasket. if you look at the base of the intake where it meets the head look for staining usally by cyl 1.

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Runs rough at idle and low rpm. misfires. gets better @ high rpm

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