Question about 2006 Chrysler PT Cruiser

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Overheat...Thermostat Change,Flush system. Now Fan doesn't turn on!

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  • 3 more comments 
  • Chu Rodriguez Estopinan

    New Fan,fuse 50 ...checking coolant temp sensor by the thermostat housing there's no sensor at all? never did...??? never had Overheat before...what going on? (Pt Cruiser Turing Edition 2006,2.4 non-turbo)

  • Chu Rodriguez Estopinan

    Is Clean like never had ONE..is weird.By Thermostat Housing as you see image. No wire or connection neither around to see...???? Were is connected? Is there a wire at all?

  • Chu Rodriguez Estopinan

    The Engine Coolant Temperature (ECT) sensor provides an input to the Powertrain Control Module (PCM). As temperature increases, resistance of the sensor decreases. As coolant temperature varies, the ECT sensor resistance changes resulting in a different voltage value at the PCM ECT sensor signal circuit. The ECT sensor provides input for various PCM operations. The PCM uses the input to control air-fuel mixture, timing, and radiator fan on/off times.

  • Chu Rodriguez Estopinan

    I don't see A Sensor on My Car...? Got the Location There's NO sensor....Do have to get this done? COOLANT LEVEL SENSOR CONNECTOR...How is DONE? For this I need a Real Mechanic?

  • Chu Rodriguez Estopinan

    Diagnose,It was no ground on Fan...new hardness connector. It works...$198 in a shop....:-P only in CT. Now they told me leak coming from Pump...I rise engine,move dry spot to check,don't see leak at all. Probably take it for nice ride and check again!

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  • Chrysler Master
  • 21,873 Answers

Do you know if the fan relay is getting a signal from the computer ?
You could have an air pocket in the cooling system.

Posted on Jul 30, 2013

Testimonial: "Relay signal from the computer probably,because the Gage stays in the middle start slow till gets up high. How could I find that Out? Flush the system and new Thermostat,air could be?"

  • 11 more comments 
  • Chu Rodriguez Estopinan

    How to eliminate air in the system...bleed by the fitting by the Thermostat?

  •  Stephen
    Stephen Jul 31, 2013

    The gauge on the dash is different from the computer signal. The relay should be grounded by the computer when coolant temp reaches 220 degrees. You can use the bleeder to let the air out, or run the engine with the filler cap loose until the thermostat opens.

  • Chu Rodriguez Estopinan

    Run engine for at least 25-30 min...slowly in about 20 min. after started moving to middle of the reader Gage. But no Fan kick...! Left it with Heater at full blass...it took about 5 more min. to High.

  • Chu Rodriguez Estopinan

    The way I could by pass the Fan to see if it works? Hoping is a Relay...which don't know either were is It...?

  •  Stephen
    Stephen Jul 31, 2013

    You may need a scanner to see what the temp sensor is sending to the computer. If the computer does not know the engine is getting hot it won't ground the fan relay. The relays should be in the box near the battery.

  • Chu Rodriguez Estopinan

    some how I burn the Fan. Today got a New one (assembly incl.),since got out the hole Battery housing out...I press on the Breaks and Horn "just in case Power left"...,To reset Computer? it takes about 30 min. Gauge on Hot again!

  • Chu Rodriguez Estopinan

    Scanner...what kind? is it!

  • Chu Rodriguez Estopinan

    Coolant Temperature Sensor Standard,Where is Located?

  • Chu Rodriguez Estopinan

    I check both they work,used 9v and it kick

  •  Stephen
    Stephen Aug 06, 2013

    The engine temp sensor is a dual element sensor where one part of it sends a signal to the engine computer and the other part sends a signal to the gauge on the dash. The sensor is on the front of the cylinder head under the radiator fill cap. As I said before, you may need to use a scanner to read the signal going to the computer. A scanner is the device you use to check for trouble codes.

  • Chu Rodriguez Estopinan

    Found it! Mines doesn't have One...

  • Chu Rodriguez Estopinan

    I don't see A Sensor on My Car...? Got the Location There's NO sensor....Do have to get this done? COOLANT LEVEL SENSOR CONNECTOR...How is DONE? For this I need a Real Mechanic?

  • Chu Rodriguez Estopinan

    behind the pump a small leak....:-P

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1 Answer

Good day. I drive a corsa sport 1.6 2004 model and im recently experiencing an overheating problem. I just replace the radiator. It overheat within 15 to 20min. What would be the problem?


So it overheated before you replaced the radiator and continues to overheat? Have you changed the thermostat and attempted to flush the cooling system?

Another item to check would be to make sure the electric cooling fan (assuming your Corsa uses one) is running as the temperature climbs. If your car uses a belt-driven fan, then the fan clutch may be bad or the blades of the fan may be damaged. This assumes no one has removed the fan shroud for some reason.

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HOW TO FLUSH AND RENEW COOLANT?


if the thermostat is in the head at the top radiator hose , remove it an fill the cooling system until the water is at that point --refit the thermostat and continue filling
make sure that the heater is turned on so that any air is moved out of the system

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Over heating problem , Toyota coaster year 2008. Change radiator, fan,and it still overheat. The head is ok.


Did you replace thermstat? I would start with that. If still trouble have a block check performed

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Overheats after running about ten minutes...doesn't overheat while idling.


Seems like your thermostat is going out, meaning that it is not opening all the way anymore, at idle its not a problem, no hi RPM on the motor, but as you rev up, temp increases, thermostat not opening all the way obstructs coolant flow so the block does not cool off properly.
Another thing to look at is your water pump, is the fan clutch working properly?
Obstructed radiator, it may need a good flush.
The car is over 10 years old, so expect it to start having issues. I'd advise to check your ******, do a maintenance on it. (filter and fluid change)

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My 1999 avlalon runs hot i have change water pump thermostat and radiator fan work but it still runs on the highway or sometimes when i idle


Hm. did you put a 50/50 solution of antifreeze in or pure antifreeze solution? If pure antifreeze is in there, then it won't cool properly and may overheat.

That's just one cause. Another cause is poor circulation in the block.

A flush may be indicated if you haven't done that.

Good luck on getting your car to not run so hot.

Also, the normal temp. can go up to 220 deg. F or 230 deg. F and still be normal in a GM car. Just don't want any leaks.

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TRY A NEW THERMOSTAT FIRST

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Engine overheating in traffic or when idling


I'm assuming your car has the Northstar engine?.

Strangely enough,if you remove the thermostat in the Northstar engine, it will overheat, this is because the stat is both a thermostat and a pressure valve.I can't be bothered to explain in detail how the whole cooling system works but please understand that you need to put the stat back in,(or preferably a new one).As for the cooling fans,what you described is normal for the Northstar.
Further to this, look at my profile,I have provided similar solutions for overheating problems.

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91 toyota camry overheating problem


So far you did the right things in the right order. If you have a pressure cap (looks like a radiator cap to the rear side of the engine. Dealer $15) change the pressure cap also and then flush the radiator. A sure sign of blockage is when you open the radiator look around inside the top if you see brown or green kind of gunky stuff. Flush the radiator anyway.
If after the radiator is flushed and you still overheat, the next posibility is the head gasket. But don,t worry yet, follow these steps and observations. (this goes for 93 camry V6 also, I have one)

  1. change radiator cap and pressure cap where applicable
  2. Change the thermostat.
  3. Some cars may have a thermo switch which ramps up the fan(double fan designs). Change that if applicable.
  4. flush the radiator and engine block
  5. change waterpump AND headgasket.
The temperature guage can tell you what you need to know.
  1. If the guage starts to spike up after stopping, pausing in traffic or while in gear not moving but it is fine while driving along the highway, then you are having a blockage in the cooling system. FLUSH SYSTEM.
  2. if there is a bubbling sound in the engine when you turn it off, FLUSH SYSTEM
  3. If the car overheats at anytime, anywhere and it drinks coolant like a fish, then you my friend have a headgasket problem. Change waterpump and head together

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