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2006 PT cruiser coolant question

 
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Old 18 Apr 2017, 10:15 pm
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Question 2006 PT cruiser coolant question

Today while driving the temperature was near the Hight level. A few months ago they pressure tested the system and the dealer did a flush including the heater core. the fan run at both speeds.

My question when its cold should there be coolant when the cap is opened?

Thank you
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Old 18 Apr 2017, 10:45 pm
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Default Re: 2006 PT cruiser coolant question

I would suggest checking the thermostat if both low and high radiator fans is working properly. Once an engine is overheated the thermostat might not work properly from that point on.

Does it overheat at both high and low speeds?
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Old 19 Apr 2017, 08:05 am
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Default Re: 2006 PT cruiser coolant question

Quote:
Originally Posted by discovering06 View Post
Today while driving the temperature was near the Hight level. A few months ago they pressure tested the system and the dealer did a flush including the heater core. the fan run at both speeds.

My question when its cold should there be coolant when the cap is opened?

Thank you
Yes. The water should be right up to the "radiator" cap (it actually is just the thermostat housing). The overflow should go out the hose into the recovery tank and get sucked back in as it cools. There are several reasons yours may not be full. Some common ones are:
  • System wasn't bled properly and there was air remaining
  • The recovery tank or hose has a hole and coolant is leaking out and/or not getting sucked back into the system
  • Bad cap can also keep the recovery system from working properly
  • Some other leak in the system

My suggestion is to first insure that it hasn't overheated. How is the oil? Smell it - if it smells burnt change it ASAP. I would fill the coolant up and look for leaks. Shut it down once it gets above halfway on the temp gauge.
These cars do not generally go above the halfway mark unless there is an issue. Does it smoke? As Steve suggested, is the thermostat working properly?

Good luck. Check it out and report back.
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Old 19 Apr 2017, 01:59 pm
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Default Re: 2006 PT cruiser coolant question

Does it go above half way on the gauge While you driving-moving not in traffic or stopping ?
or it goes above half on the gauge when stopping at red lights?

Air Cond on or off?

Surely you have had the timing belt water pump replace already, have you had the cooling fan replaced?
Any other motor or cooling service done?
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Old 19 Apr 2017, 10:24 pm
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Default Re: 2006 PT cruiser coolant question

Hi,

I've had the timing belt, water pump, drive belt, tensioner replaced.

I added 50/50 Mopar coolant with distilled water tonight and I believe the system needs to be bled. The overflow tank is half way full. In traffic it go above the half way mark after adding the mixture. I think a flush at the dealer is warranted. The fans work hi and low speed.
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Old 19 Apr 2017, 10:50 pm
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Default Re: 2006 PT cruiser coolant question

If you can drive on the open road say 40 mph or more and the temp gauge stays normal, but in traffic the gauge goes up over half, its typical failing Cooling which works intermittently or and coolant need bled.

Dealer will gladly take your $ and you will still need a Cooling fan.
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66 Ply Satellite with 273 engine swap to 69 340 4spd
70 340 4spd Dart Swinger "Those were the days my friend"
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Had a few Vetts on the way 69, 85
Several Neons some flips
01 Sebring flip
Cruiser's 01, 220K Gone to a new home
Cruiser 03 133K Gone to a new home
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Cruiser 05 Ltd 120,809 bought with broken belt Oct2015
May 16 Resurrected to once again roam the streets.

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Old 19 Apr 2017, 10:55 pm
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Default Re: 2006 PT cruiser coolant question

Just replaced the fan one year ago

I know no local shop works on Cruisers
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Old 19 Apr 2017, 10:56 pm
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Default Re: 2006 PT cruiser coolant question

Quote:
Originally Posted by discovering06 View Post
Hi,

I've had the timing belt, water pump, drive belt, tensioner replaced.

I added 50/50 Mopar coolant with distilled water tonight and I believe the system needs to be bled. The overflow tank is half way full. In traffic it go above the half way mark after adding the mixture. I think a flush at the dealer is warranted. The fans work hi and low speed.
Did you burp the engine coolant system?
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Old 19 Apr 2017, 11:00 pm
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Default Re: 2006 PT cruiser coolant question

I didi a quick and dirty burp. Not a true burp. added coolant and opened the bleed
screw, air is definitely in the system
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Old 19 Apr 2017, 11:39 pm
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Default Re: 2006 PT cruiser coolant question

Quote:
Originally Posted by discovering06 View Post
I didi a quick and dirty burp. Not a true burp. added coolant and opened the bleed
screw, air is definitely in the system
If you want to be physiologically be satisfied let physic's do the bleeding for you. Bring the engine to operating engine temperature then park the PT so the the front is at least approximately 5 degree nose up angle. Carefully remove the radiator cap and leave it off for the night. In the morning check the coolant level and add water only to top off if needed. Replace the radiator cap and complete the process by checking the recovery tank. Add water only if needed and drive your PT.
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Last edited by ptcruisersteve; 19 Apr 2017 at 11:45 pm.
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