1999 Chevrolet Malibu "vacuum cleaner motor surging" Questions

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Question about Chevrolet Malibu

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...vacuum hose. === clean throttle plate with Berryman carburator cleaner SEE sample picture HERE === Also remove carbon built up behind the EGR valve and the EGR passage tube. === Vacuum leak WILL ...

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...vacuum hose. === clean throttle plate with Berryman carburator cleaner SEE sample picture HERE === Also remove carbon built up behind the EGR valve and the EGR passage tube. === Vacuum leak WILL ...

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...your vacuum hoses also.To check for vacuum leaks on hoses, etc:, while the motor is running, spray "non-flammable" brake cleaner on hoses, if rough engine idle perks up, you have found your

...vacuum hoses and see if your motor surges or starts to die. Last resort is using carb cleaner spray. Sparringly, spray quick, short bursts in and around vaccum lines. Never spray alot at once and not ...

...cleaner tube or throttle area is a sensor with a pigtail of wiring going to it. It comes off the throttle connections. If it is surging unplug it and it should stop surging. Then you know it was bad ...

...vacuum hoses connection and electrical conection.I'n most cases,the diaphragm could be dirty,thus restrictin internal part to slide back and forward.If you are handy,locate the ISV and remove it.Use ...

Question about Chevrolet Malibu

1 Answer

...vacuum leak then the iac on the side of the throttle body will need to be removed and cleaned. The best thing to do is remove the whole throttle body so it can be cleaned as well - both with carb ...

...cleaner above the engine around the intake and vacuum line and see if the engine reacts to it. If does you have a vacuum leak which may cause you to surge aswell. You may also want to change your iac ...

Question about Chevrolet Malibu

1 Answer

delivery. . for vacuum leaks spray some carb cleaner around the air lines any change in the engine usually indicates an air leak. also the fuel pressure valve these can all lower or stop fuel pressure

vacuum line off the pressure raises to 43 psi and stays there until I put the line back on then hovers at 36-38 psi then surges and the motor shakes due to the rough idle. Any thoughts?! Thanks Again!

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