Tip & How-To about Chevrolet Silverado

Rought or shaky idle

If you have a rough or shaky idle, the problem could be the air intake is dirty. You will need to get to the butterly of the air intake and clean it out. There is a cleaner that is sold for about $5. Use a screwdriver to help keep open the butterfly. Spray the cleaner and use a dry cloth to clean the inside of the intake. This will help to clean up alot of the gunk in and around the intake. When you first start it up it still may have a rough idle for about 20 to 30 second but it will go away. There may be even a little smoke of the exhaust but will clear up. You will have a great idle again. Great day.

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rough idle dies occassionally


Upper o2 sensors, dirty intake, air & fuel filters, needs tune-up, dirty idle air intake valve, does it have any obd2 codes? You 've a few things to look at. Good luck.

Aug 15, 2014 | 2006 Saturn ION

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1995 HONDA ACCORD ROUGH IDLE


Clean your fast idle thermo valve (fitv) if that dont Work try cleaning idle Air control valve (iacv) you can go to google images to see where they are located on the intake manifold if you dont know And also if you dont know you can search google on how to clean these parts. Slightly dirty fitv was my problem cleaned it no prob. Since.

Apr 20, 2010 | 1995 Honda Accord

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1993 mazda mx6 idles jumps up and down between


The butterfly at the air intake may be dirty. If at all possible remove the breathers leading to this and clean the butterly with carbuerator cleaner or something like it. There may be deposits and it is not breathing good.

Oct 09, 2009 | 1993 Mazda MX-6

3 Answers

rough idle problem


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.

Apr 16, 2009 | 2004 Toyota Corolla

1 Answer

ROugh idle


there are 2 things that usually cause this, one is a dirty intake idle control valve and the other is hard engine mounts, I would say that both most likely apply to your car. try cleaning the intake with the following procedure from Ford.
Here is the most common cause of surges and stalls and low idle rough idle, it is the idle speed control air-bypass valve and throttle valve (IAC for short), they get full of gunk over the miles and cause idle issues (stalls, low idle) like yours, Get a can of intake cleaner from any local parts store, not carb spray, intake cleaner, it is made by a company called CRC, remove the air intake hose to the engine, hold the idle high so the engine won't stall, then spray the can of cleaner into the intake while keeping the engine running, use at least 1/2 the can, shut down the engine and disconnect the battery for 5 minutes, then restart and complete a number of mixed driving cycles, town, freeway, stop and go etc., after a few days the problem will go away as the system will relearn to the clean intake.

Feb 18, 2009 | 1994 Ford Probe

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