Overheating problems

pat_paula
270

Asked by pat_paula Aug 18, 2011 at 10:20 PM about the 2002 Chrysler PT Cruiser

Question type: Maintenance & Repair

So my wife's 2002 cruiser runs hot and overheats when idle too long (drive thru, red light etc.). 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?  Please HELP!!!!!

19 Answers

papa
Not Active

is it overheating to a point of boiling,or is the gadge just going up.

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pat_paula
270

Well, I don't let it get to the point where the light comes on and the gauge is in the red. I turn on the heater and pull over. If I drive on the highway it's fine, stays right at normal temp.

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Omonpéé Petcoff
160

Ours is doing the exact same thing! We have replaced EVERYTHING in that "arena", too. It is at the shop as we speak.

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busher56
140

Had all the same problems with overheating.Changed fan assembly,flushed out radiator etc.Ordered new after market radiator,installed runs better then new.Found out later they have a problem with small cores in radiator plugging up.Hope thi helps.

14 out of 14 people think this is helpful.
thefrozendog
300

Our 2006 was doing this, found that there is a problem with PT radiator fans, they have two speeds and the low speed often burns out, you can crawl under there disconnect the power and add power and ground to 2 pins then try the other pin, mine wouldnt work on one speed but would did on high. Google this. New fan fixed it. PS about that time it was idling funny and the timing belt went out a week later. Change your belt before 90k, its not as hard as some make it seem if you have a large set of tools and a good jack

17 out of 17 people think this is helpful.
Steven Hood
425

I had the same problem a couple years ago. The switch that turns on the fan had quit working. Have it checked out.

12 out of 12 people think this is helpful.
taywana
180

Had same problem with my 02 cruiser it turned out to be radiator cap......

18 out of 18 people think this is helpful.
blondy63
160

I'm having that same problem.I have a 2001.I've have replaced almost everything.And mine still is over heating .So I ride with the heat on.Any one can help me!!!!

16 out of 16 people think this is helpful.
thefrozendog
300

Check coolant level while cold,warm engine, LOOK at the radiator cap for leaks (do not open while its hot), you could replace this since its cheap. Next test the radiator fan like I said above, its not hard to test or replace. if all is good you can replace the thermostat, easy and cheap. if you have 80k plus miles the water pump could be going out. Replace it and the timing belt and tensioner along with the thermostat since you are right there. You can buy the kit cheap on ebay. You could also do the valve cover gasket and spark plug tube gaskets while you are there. I also pulled my injectors and cleaned them when I did all this. Car runs like a top. I did the full energy suspension kit which put all new bushing underneath and it rides better than new, and they last longer than the factory rubber bushings. Also while I was doing the timing belt I broke the high pressure switch on the AC compressor (down by the lower radiator) this is where you will see what appears to be steam come out when the radiator fan high speed is out, pressure builds (and heat) be careful when doing the timing belt or yours will break too, cheap to fix but a pain since you cant see the snap ring to get special pliers in the holes. I recommend unplugging the connection until ALL work is done and the car is back together and running and the timing is correct which can be tricky with the 2.4 PT motor, miss the cam wheel gears by one tooth and it wont run right. IMO you should mark the gears to the belt (different color for both sides) then do it again on the crankshaft/ timing belt.. Then transfer the marks from the old belt to the new one, then install new belt going from the crank, up the right side to water pump, cams and then zip tie the new belt down tight on each gear, then it wont slip as you work it around the tensioner. So check coolant, radiator cap and fan. Then its either water pump OR head gasket (bent valves? Google-compression test, easy. Autozone will loan the tester.) both require you to get in there. You can pick up a used head at any salvage place (or have yours cleanedup) and order the head gasket on ebay (might as well do the valve cover/sparkplug tubes also). Good luck.

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thefrozendog
300

lol I kept editing my post above because it was at the word limit, guess I could have broken it into 2 posts. I just remembered If the car is out of time by one tooth it will run hot (also stumble, accelerate slowly etc), if its out by 2 teeth it wont run at all. I had both problems when I did my first PT timing belt. Blondy did you do your timing belt recently? what have you replaced? "almost Everything" doesn't tell us anything

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123_Adam
60

I have the same problem, I got told that it is the head gasket, but I think it's the thermostat. Where can I locate the thermostat?

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Gregory Ross
20

Under the radiator cap spout two bolts size 10 metric.. But u have to pull the air flow bolts first

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bimala
60

I have a problem with my pt cruiser 2002, when I ride car for long time my engine shut off.... but when I drive same distance on highway it is fine. it only shut off when I drive in city for long distance... plzzzz help me

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pdott69
120

i have a broken thermostat on my 2000 pt cruiser cruiser, could that mean the problem when it overheats and drinks all my coolant?

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Elizabeth Faehr
90

I HAVE A 2007 PT CRUISER AND IT OVER HEATS BUT BLOW OUT COLD AIR, I DID CHANCH THE THERMOSTAT BUT IT STILL OVER HEATS WITH COLD AIR BLOWING OUT

9 out of 9 people think this is helpful.
jburg
70

elizabeth, im having that problem, what did it end up being??

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Twin69gemini
80

going through the overheating problem now, Im having to clean up some other person " mechanics" bs workman ship. Man if I had the internet back in the day oh how much money/time/and lord knows all the foul language that was said! Back to issue, the radiator cap is rated at a certain psi if your radiator cap is bad it will allow your coolant to run over into the overflow/return bottle and fill it and when it becomes to full it will drain out the back therefore you will be losing coolant thus your car will overheat. Also if you don't bleed the system after changing the coolant etc you can have air pockets created by steam which will cause your car to overheat. Use the small nipple on the side of the thermostat housing I believe a 10mm and turn it slowly to loosen which if you see steam you have an air pocket. Shut it when you see straight water let run then check it again if no steam/air your system should be good in that aspect. If your coolant system is toped of you can start the car when cold (if hot let sit and slowly I mean carefully open the cap if warm) if the coolant shoots out you are getting combustion in the cooling system. Usually a blown head gasket at that point! I will say that if you have heard of Blue Devil engine sealer which repairs cracks, head gaskets, etc, this is a temporary fix and yes I have friends that have gone almost a year and no problems save your money and do it right! Mechanic in a bottle is not the way to go unless you are stuck and its your last option. >> Check Radiator Cap first its the easiest and really cheap fix >> Coolant Level (you need antifreeze as it also raises the boiling point)50/50 mix or close to this >> Coolant Flow >> Thermostat change its another easy and cheap fix >> Run the right octane gas as turbo models require premium gas >> Check your fan relays and fuses (coolant temp sensor as it can read a false temp, I like to add aftermarket gauges I don't really trust factory gauges all that much on older vehicles. >> Do your homework as it may seem hard it really isn't, don't be afraid to ask questions etc.. If you have smaller hands or access to some they will help out as well! Good luck

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Jenny Martinez
90

My 01 keeps overheating, sometimes right away and other times I can drive all day, cold or warm out. It does tend to warm up fast if going uphill, I also hear gurggling sounds when I turn it off, even when its not running hot. It sometime has heat and others blows cool air. I have replaced the radiator, cap, and thermostat. what should I do next? I have also noticed that the fluid does not stay in the neck of the radiator. when I take the cap off and fill it just goes to overflow never fills up in the neck like I am use to in other cars, is this normal?

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Leroy Smith
80

no its is not normal with the 2.4 engine cooling system are sealed and you have to bleed them you will find a bleed just under the cap about 3 to 4 inch down have to bleed all the air out of the system or it will do that and over heat

8 out of 8 people think this is helpful.

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