RPM problem: up and down indicator at neutral(traffic)!

[mazerom]

i have this weird experience with my honda civic esi 95 manual transmission...
at traffic when i'm in neutral, my engine RPM seems to play between 1 and 2 or at least the indicator moves up and then down without touching the accelerator..
any comments?

[typhoon]

Naka-aircon lang ba yan? If that's the case, pacheck mo ung aircon. Baka nadedelay ung pag-disengage ng compressor. Ganyan problem ko before although between 1 and almost 0 naman sakin to the point na namamatayan na ng makina.

[fourtheboys96]

i read it may be due to dirty throttle body. have it cleaned.

[mcbry]

kailangan yung last tune up nito? baka kailangan lang tune up yan.

[speedyfix]

you need to have the intake manifold, throttle body and iacv cleaned.

[miLes]

had a similar experience too, only happens when in traffic, the culprit was the aux fan not working.

[kabuke0]

dapat ba steady lang siya sa 1? or 2? kahit sa akin din eh ganun. parang ala naman problema.

[1D4LV]

dapat ba steady lang siya sa 1? or 2? kahit sa akin din eh ganun. parang ala naman problema.

kung idling lang, and traffic, normally nasa 700-800 rpms lang yan, with aircon on.

[fourtheboys96]

how about kung masyado bumababa yung rpm pag naka engage sa drive (automatic transmission) with aircon on. pag shift naman sa neutral, tumataas siya sa normal rpm.

maayos ba ito ng paglinis sa intake manifold, throttle body???

[speedyfix]

baka kaya. easy to see if it can be fixed if you pass by the shop

[finchy18]

madami prob na ganyan din ang symptomas.. better overall check up.

[HIFI]

Have the electrical the Tachometer (RPM) checked. Baka loose connection lang yan.

[puroy]

you need to have the intake manifold, throttle body and iacv cleaned.

*speedyfix: what if carb, what should be cleaned?

[speedyfix]

well depends. minsan kuha sa cleaning (which you can do by the way... just get a carb cleaner bottle). minsan kelangan overhaul or palit specific parts.

[pitbullz]

clearance ng contact points...have it checked as well

[poch333]

The real culprit, 90% of the time, is simply a vacuum leak.

[speedyfix]

i hardly see any vacuum leaks... most of the time it is a defective or dirty sensor.

[igorbaby]

Sir SPEEDYFIX,

Would you mind to post How to properly Clean Throttle Body without damaging some sensors connected to it? What kind of cleaning solution to use?

Salamat Po!
igorbaby

[redorange]

Sir SPEEDYFIX,

Would you mind to post How to properly Clean Throttle Body without damaging some sensors connected to it? What kind of cleaning solution to use?

Salamat Po!
igorbaby

Check the site for a quick how to on cleaning throttle body.

http://www.popularmechanics.com/auto...t/1272341.html

[speedyfix]

hard for me to tell you how to do it step by step... easier if i show you.