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Hi i have problem with the cooling fan an i will try to explain everything
I order a new cooling fan switch and nothing still don't want to work so i try this things i go to the computer test and tru A and B with paperclip and fan kicks on when is on AC fan is on but just in one speed and sometimes is overheat and turn of the AC i found the relay and a switch with another one same as this and still nothing the fan don't like to work when is not on AC i try unplugging the TPS sensor and the fan goes ON or MAP sensor i don't know what is the problem if someone can tell me what to check to do i will be very grateful

Oh i forgot my car is Chevrolet Beretta GTZ 1992 2.3L

tintirimintiri GTZ wrote:Hi i have problem with the cooling fan an i will try to explain everything
I order a new cooling fan switch and nothing still don't want to work so i try this things i go to the computer test and tru A and B with paperclip and fan kicks on when is on AC fan is on but just in one speed and sometimes is overheat and turn of the AC i found the relay and a switch with another one same as this and still nothing the fan don't like to work when is not on AC i try unplugging the TPS sensor and the fan goes ON or MAP sensor i don't know what is the problem if someone can tell me what to check to do i will be very grateful

Oh i forgot my car is Chevrolet Beretta GTZ 1992 2.3L

Sorry i forgot to tell this when the coolant temperature switch is connected then the RPM stay 2000 and when AC is on they go up to 2500 or 3000 and the AC pump screaming like their is no bearing at all and when you unplug the coolant temp switch everything is okey just no second speed from the fan

http://www.beretta.net/forum/viewtopic.php?f=12&t=23579

There may be some helpful things in that topic.

Almost sounds like the compresser is low on oil and the CTS is bad.