Aircond not cold when stationary. Why?

[ashabmy]

It happen to my Harrier for about a month now. The RPM will drop to
<500RPM, aircond blowing air only. It try to raise the RPM to ~800RPM for
few times, with tak-tak sound from the engine, but finally rest at <500RPM
& aircond blowing air only. Battery indicator also turn yellow-red.

If I step on the pedal & keep the RPM >800RPM, its fine! But can't do that
if I have to stop for longer time, especially waiting. My battery also will
not last long if continue like this.

What's the problem? Alternator? appreciate yr comment b4 I send it to
mechanic, so he can't cheat me:regular_smile:

 

[trex92]

just timing set too low perhaps... too low idle timing would mean compressor not enough power from the engine and hence not cold. Same wise for battery light, too low timing would cause the battery light to come on coz the car is near dying off... You should find out why the timing too low...

 

[huakenny]

hv to check y rpm suddenly drop to 500 like tat...tats too low...:_:

 

[rollakid]

harrier got that aircond vacuum setting knob in the engine bay or not? dunno how to call that thing.

 

[ray11]

how long u didn't service ur air con..? i kena oredy this prob...
when car throttle aircon cold but if in a halt it will blowing air only...
cos the condenser got clogged n not working properly...
high pressure cause the aircon not cold... got my aircon service n chg my cooling coil and filter plus the valve.But compressor also not so in good cond.hv to chg
to get optimum performance...car now quite heavy when on aircon.

 

[ashabmy]

I've driven my Harrier for 9 months, bought it as re-cond JDM, mileage now 36,000KM (but I dont trust it, should be more). Model year2000, 3.0LV6 VVTi.

I've never service the aircond yet. The aircond is great when car moving, only problem when stationary. Probably the timing setting is to low, but I didn't change the timing setting.

Will see what the mechanic say tomorrow. At least I have something to ask him from the info you guys provided.

thanx & cheers

 

[Doink]

u mean the ics???have to adjust the timing back or maybe compressor got problem...

 

[howiechoo]

go for a mech to check first...i scare is some sensor kong..my fren recon jap car got this prob...sensor always kong..but dunno wat sensor...not a really close fren

 

[ashabmy]

Sent to my mechanic last saturday. They still can't identify the problem, will check again next saturday.. they will check the vacuum, meanwhile, they increased the timing a bit (~900RPM). Will update you guys...

 

[Evo48]

check your aircond fan on ur radiator is it working? mine last time having same problem. problem solved after replace the fan.

 

[g88]

sound like your aircond compressor clutch getting loose..