Common questions

What does it mean if your PT Cruiser radiator is not working?

What does it mean if your PT Cruiser radiator is not working?

Your Chrysler PT Cruiser ‘s radiator fan has one of the most important jobs on the vehicle. It is the last line of defense between you and an overheating engine. If the radiator fan is not working, it’s a serious problem. Just because the radiator fan is not on does not mean that it is not working.

What to do if your radiator cooling fan Wont Stop Running?

Remove the lid. Look on the inside of the lid and for the mapping of the fuses and relays with their location. Pull the cooling fan relay out of the box. Replace the cooling fan relay with a new one. A stuck closed relay is the only thing that can operate the cooling fan continuously with the key off.

Why is my computer cooling fan not working?

A stuck closed relay is the only thing that can operate the cooling fan continuously with the key off. The computer looses power with the key off and the same applies to the coolant temperature sensor. The relay, however, has direct power to one side, the same as a light switch.

How to replace the radio fuse on a radiator?

He has owned an auto service facility since 1982 and has over 45 years of technical experience as a master ASE tech. Bowman has a business degree from Pennsylvania State University and was an officer in the U.S. Army (aircraft maintenance officer, pilot, six Air Medal awards, two tours Vietnam). How to Replace the Radio Fuse on a …

Where is the cooling fan motor relay on a PT Cruiser?

Shop AutoZone for Chrysler PT Cruiser Radiator Cooling Fan Motor Relay. Notes: Hi speed. Located power distribution box Notes: Low speed. Located power distribution box

Your Chrysler PT Cruiser ‘s radiator fan has one of the most important jobs on the vehicle. It is the last line of defense between you and an overheating engine. If the radiator fan is not working, it’s a serious problem. Just because the radiator fan is not on does not mean that it is not working.

What are common reasons my Chrysler PT Cruiser has air conditioning problems?

What are common reasons my Chrysler PT Cruiser has air conditioning problems? While there are a variety of reasons your Chrysler PT Cruiser air conditioning won’t work, the most common 3 are a refrigerant leak, an electrical climate control issue, or a problem with the air conditioning compressor.

What are the symptoms of a bad cooling fan relay?

1 Engine running hot One of the first symptoms commonly associated with a bad or failing cooling fan relay is an engine that runs hot or overheats. 2 Cooling fans do not function Non-functional cooling fans are another common symptom of a potential problem with the cooling fan relay. 3 Cooling fans stay on at all times

How to troubleshoot a Chrysler PT Cruiser cooling fan?

Upon inspection, we determine the cause of this condition is something often overlooked, a cooling fan problem. We tackle this cooling fan using basic electrical troubleshooting methods, and learn a lot about the system while doing it. Some testing techniques I used… I hope you guys enjoy!!! Loading…

What to do if your PT Cruiser overheats?

1. Work on cool engine 2. Drain overflow tank. Pull off hose at tank site. Use a throwaway cup to catch antifreeze. 3. Put overflow tank hose back after draining to add mark. 4. Open bleeder valve 10 mm and remove overflow hose at radiator end. 5.

Why is my cooling fan not coming on?

Cooling fan not coming on- replaced a bunch of times, and every time it works for a while then will die… Fan works when I test it out with a ground and a positive wire from the battery. Only overheats when no airflow over the radiator.

1. Work on cool engine 2. Drain overflow tank. Pull off hose at tank site. Use a throwaway cup to catch antifreeze. 3. Put overflow tank hose back after draining to add mark. 4. Open bleeder valve 10 mm and remove overflow hose at radiator end. 5.

What happens when you fill up the radiator fan?

If you do have low coolant, don’t fill it up until the engine has cooled off. Adding coolant to a radiator dry enough not to trigger the engine temp sensor can cause problems from drastic temperature change. Let it cool down first.

When do you turn on the cooling fan on a PT Cruiser?

The entire system will see an additional load when the A/C is activated (with its dedicated secondary fan), and similarly, the system will see a bit of a draw when your cooling fan kicks on….but with a vehicle that is properly charging, and a fresh battery, there should be no issues. Fans should come on as previously described!

What should I do about my PT Cruiser battery?

As for the battery dilemma, you need only insure that you have a well charged unit (recent is always good) with very secure CONNECTIONS!

Cooling fan not coming on- replaced a bunch of times, and every time it works for a while then will die… Fan works when I test it out with a ground and a positive wire from the battery. Only overheats when no airflow over the radiator.

Why does my 2006 PT Cruiser overheat?

2006 pt cruiser 2.4 turbo ho put on fail proof thermostat a month or two . Don’t not overheat on 20 mile drive but does on a longer trip. Radiator is full just notice coolant tank may be leaking could that be the only problem or something else? Cooling fan is working also. Is this a good question?

Why does my PT Cruiser fan not work?

Fan works when I test it out with a ground and a positive wire from the battery. Only overheats when no airflow over the radiator. I just bought a temperature sending unit, but the guy at the parts shop said that there’s a good chance that the battery is bad.

As for the battery dilemma, you need only insure that you have a well charged unit (recent is always good) with very secure CONNECTIONS!

Upon inspection, we determine the cause of this condition is something often overlooked, a cooling fan problem. We tackle this cooling fan using basic electrical troubleshooting methods, and learn a lot about the system while doing it. Some testing techniques I used… I hope you guys enjoy!!! Loading…

What should I do about my Chrysler cooling fan?

Chrysler cooling fans are a common fault. However they can be a little puzzling to test. Review the electrical diagram before you begin and this should help Chrysler cooling fans are a common fault. However they can be a little puzzling to test. Review the electrical diagram before you begin and this should help Skip navigation Sign in

The entire system will see an additional load when the A/C is activated (with its dedicated secondary fan), and similarly, the system will see a bit of a draw when your cooling fan kicks on….but with a vehicle that is properly charging, and a fresh battery, there should be no issues. Fans should come on as previously described!

How does the a / C compressor clutch work on a PT Cruiser?

The A/C low pressure switch is electrically connected in series with the A/C-heater control mode switch and the A/C high pressure switch, between ground and the powertrain control module (PCM). The A/C low pressure switch contact opens or closes the path the ground, signaling the PCM to turn the A/C compressor clutch on and off.

What kind of fan does a PT Cruiser use?

Auxiliary Electric Fan. Add on fans used to supplement the primary engine cooling fan. Notes: Engine cooling fan. Universal fit / add-on type (adaptation required). Primary cooling fan. Reversible for push or pull operation. Includes mounting hardware. Controls not included.

Auxiliary Electric Fan. Add on fans used to supplement the primary engine cooling fan. Notes: Engine cooling fan. Universal fit / add-on type (adaptation required). Primary cooling fan. Reversible for push or pull operation. Includes mounting hardware. Controls not included.

Relays bridge the gap, making it possible for small currents to activate larger ones. One of the first symptoms commonly associated with a bad or failing cooling fan relay is; an engine that runs hot or overheats. Non-functional cooling fans are another common symptom of a potential problem with the cooling fan relay.

What happens if the cooling fan relay fails?

Non-functional cooling fans are another common symptom of a potential problem with the cooling fan relay. If the relay fails, it will be unable to supply power to the fans, and as a result they will not operate.

Why are my cooling fans running at all times?

If the cooling fans are staying on at all times, this is another (less common) symptom of a possible problem with the cooling fan relay. If the relay shorts internally, it may cause power to be permanently switched on, which will cause the fans to run at all times.

The A/C low pressure switch is electrically connected in series with the A/C-heater control mode switch and the A/C high pressure switch, between ground and the powertrain control module (PCM). The A/C low pressure switch contact opens or closes the path the ground, signaling the PCM to turn the A/C compressor clutch on and off.

What should I do about my PT Cruiser overheating?

Checked debris between condensor and fan, fan works, coolant full, thermostat works, all relays good, changed egr valve and thoroughly cleaned egr tubing, no cracked head or head gasket problem. Getting to my wits end and ready to take long drive off short pier. Any ideas what’s wrong or what else I could do to fix this problem?

Why is my Chrysler PT Cruiser not working?

While there are a variety of reasons your Chrysler PT Cruiser air conditioning won’t work, the most common 3 are a refrigerant leak, an electrical climate control issue, or a problem with the air conditioning compressor. What will be the outcome of an air conditioning system diagnosis?

Should the radiator cooling fan always run when the a / C is?

A/C isn’t cooling ok till you start driving. Sitting still it doesn’t cool and the rad fan only seems to run when engine temp is calling for it. I changed the low speed fan and high speed fan relays and get the same result. Any advice?? Day2 Test all fuses with a test light ..

How does the PCM turn on the radiator fan?

The PCM turns on the fan through either the high or low speed fan relay. The PCM provides a ground to the relay’s control circuit. To control radiator fan operation, the PCM looks at inputs from:? Engine coolant temperature? A/C pressure transducer (turbo only)? Ambient temperature? Vehicle speed?

How does a non turbo radiator fan work?

Non Turbo Fan Opertion: Radiator fan operation is control by the Powertrain Control Module (PCM) with inputs from the temperature of the coolant, which is sensed by the coolant temperature sensor, and vehicle speed which is measured by the vehicle speed sensor. The PCM turns on the fan through either the high or low speed fan relay.

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Ruth Doyle