bumababa ang RPM

[paulgozon]

check you idling speed.

check your battery, baka mahina na. aircon takes it electricity from the battery, not from the alternator. check mu din alternator, baka mahina karga.

pero if di naman namamatay ng tuluyan, baka low idle lang

Pardon me, but this is hard to let go. All electrical loads when the engine is running will come from the alternator, provided the alternator can supply the demand, when the demand exceeds the supply they battery will provide it.

His vehicle is is a 2000 Revo with EFI engine, the computer manages the engine idle.

[raine]

ito ang pagkakaintindi ko sa revo and other efi cars.
initial during engine initial start (engine cold) approx. 1300rpm
gradually will stabilized to 650rpm

no load approx 650 rpm
load will increase by demand (brake, electrical)
by approx 150rpm

load will increase to approx. 850rpm
when a/c is selected to on
thru idle up.


check mo muna ang throttle mo baka madumi na,
baka bara na ang mga ports sa loob
then check ang mga vacuum hose for leak .
then check ang idle up baka di na gumagana replace mo na

[Bruks_pt]

Sirs, ask ko lang po; yung grand vitara 2.7 v6, ok ang idle, ok response pag tapakan selenyador; pero pag nilagay sa reverse or drive (a/t po), bumababa idle hangang mamatay.. would appreciate your opinions po kung anu sa tingin nyo problema, at kung ano solution? Many thanks in advance po..

[mazingerZ]

Its the Idle Air Controller Valve/servo in most cases. Have it checked . .

[Bruks_pt]

Sir mazingerZ, many thanks po for your comment.