Could be an electric fan motor. It is a 2 spped fan. Mine did same thing and I replaced the fan and worked great.
I had a similar issue on my 04 cruiser. I replaced the electric fan motor and it worked great. It is a 2 speed fan.
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SOURCE: 2001 pt cruiser no heat
did you check the fluid level by removing the rad. cap? Radiator should be full to top. If Chryslers are low on coolant, the heater will not blow warm air.
SOURCE: 2003 chrysler pt cruiser air conditioner is
This is only a DIY check list of probable faults.
1. Electrical failure thro' the Fuses and Relays that energise the Compressor clutch.
2. Lack of Freon in the System,
3.Split Hi or Lo pressure hoses, due to chafing on the engine or body work, causing pressure loss.
4. Failed Expansion valve.
5. Leaking coupling joint seals in system.
6. Broken Drive belt for the Compressor.
7. Failed Compressor Clutch Electric windings,
8. Failed Hi pressure hose/pipe In line switch, that also enegises the compressor clutch.
9. Defective Thermostat in the Evaporator core.
10.Holed Condenser permitting pressure loss.
Best of luck on the fault finding trail.
I suggest a trip to Walmart, to acquire the low cost Charge canisters to find the pressure loss fault,if it is not in the other fault suggestions.
Regards DT
SOURCE: my 2003 pt cruiser ac is blowing hot air after a recharge and....
It sounds to me like the relay could be bad. Maybe needs a new compressor.
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