front A/C is cooler than the rear

[ravelcop]

hindi pantay ang lamig ng front and rear A/C ko. what could be the probable causes aside from the difference in evaporator coils? sobrang lamig ng front A/C ko compared to the rear A/C. both of them naman were cleaned at the same time, last month lang. as a matter of fact, yung evaporator coil ng rear A/C is the one used in Nissan A/C system

[acenie]

Ano ba ang sasakyan mo, pa check mo yung Solenoid Valve sa Rear Aircon baka barado na.

[ravelcop]

Hyundai Galloper po, the re-badged Pajero boxtype. i remember my technician told me before na tinanggal nya daw yung solenoid valve, so kahit naka-off yung rear A/C, nag-cicirculate parin ang lamig on both front & rear coils.

another technician told me na dapat daw front and rear expansion valves are the same para pantay ang lamig, how true is this?

[mbeige]

Nakabukas ba vents sa likod?

[abort_retry]

that is the side effect of removing the rear solenoid valve. hihina talaga lamig ng front and rear a/c mo. actually malamig rin naman ang front kaya lang it is cooler if there is a rear solenoid valve installed. kasi it cut-off the flow from the rear evaporator when not in used..... buy a new one and have it installed. hindi naman kamahalan siguro ang part na yan dahil P900 lang kuha ko when i replace my starex's rear solenoid valve.

[ravelcop]

i dont understand how the valve affects the coolness of the rear A/C? diba you said its only purpose is to cut off the flow kung hindi ginagamit ang rear A/C? so without this, it's free flowing from front to rear. kaso ang rear A/C ang hindi masyadong lumalamig kahit free-flowing sya, yet there's nothing wrong with the front A/C, it's soooo cold. could there be any other culprit?