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08 cruiser overheating when stopped. But I've done all the standard repairs...

 
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Old 13 Jul 2016, 07:17 am
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Default 08 cruiser overheating when stopped. But I've done all the standard repairs...

Ok, I'm losing my mind on this thing.

I work as a courier, and I blew up my last car. I found an 08 PT Cruiser for sale in my price range and decided to take the plunge. If you want a laugh understand that I bought it from a local reverend, an active preacher at a small church it Grand Prairie, TX.

I knew it had some mechanical issues, but I'm not afraid of handling a wrench. While not a mechanic, I'm one of those guys who's changed a water pump in a parking lot because it was cheaper than towing the truck home.

So anyways, I fixed it up well enough to pass inspection. I will readily admit that I did the majority of the repairs via information I found on this forum. Seriously, thank you guys.

I've driven it for 10,000 miles with no problems, but suddenly it's started to overheat when I'm stuck in traffic or at a stop light. It started by boiling off it's coolant if I was stationary for too long. Then it left me stranded 40 miles from home.

I did the usual. The radiator cap was bad so I replaced it, then replaced the thermostat for good measure. I bled the coolant system, though in a thoroughly craptastic fashion. I didn't have the right sized tubing.

It worked fine for about six hours then started overheating as soon as I ended up getting stuck in traffic.

I searched around a bit, found out about the issues with the fan. Sure enough, the fan isn't blowing, so I replace it. It works fine through a few hours of highway driving then overheats the moment I hit traffic.

The fan isn't blowing.

I take it to a local Midas and find out that the connector to the fan is bad. They replace it and everything seems to work fine, for about six hours.

I'm able to handle several hours of highway driving, but after I get stuck in traffic it starts to overheat. After it overheats it won't cool unless I'm driving at 60+ mph. Anything less than that and the temperature gauge keeps climbing.

It took me six hours to get home.

Ok, back to the mechanic it goes. The fan is blowing, both high and low side. The water pump is circulating coolant. The thermostat is working. They rebleed the system, finding a bit of air in the system.

And everything seems to work, for five bloody hours.

After they rebled the system they drove it for half an hour, with no problems. I sat with it idling in a parking lot for half an hour. It worked with no problem. I drove it for the next four hours, mostly highway miles, and it didn't have a problem.

About 3pm I ran into heavy traffic on the Dallas North Tollway. It started to overheat so I pulled off and started driving the back roads. Every time I ended up stopped at a stoplight the gauge started rising. Once I started driving 50+ mph everything would start cooling down.

I make a pick-up in Carrollton, and can't make it to the delivery. In two stoplights I had redlined.

After passing the order to another driver, I start to work my way home. I let it cool for 2 hours and start driving down the highway. I'm driving about 12 miles. It redlines once I get stuck in traffic about halfway home. It seriously took me 4 hours to drive 12 miles.

I have absolutely no idea what's wrong with this thing. THe only thing I can think of is that the previous owner had flushed and filled the system with 50/50 Universal Coolant. At this point we have replaced virtually every other component in the cooling system.

Any ideas? I'm seriously at my wits end with this thing.
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Old 13 Jul 2016, 07:49 am
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Default Re: 08 cruiser overheating when stopped. But I've done all the standard repairs...

I don't know what year your Cruiser is , or how many miles. It sound to me like you have replaced everything, with the exception of one important part of the cooling system. The radiator. If it is old with tons of mileage, I'm sure the cooling tubes are partially clogged.
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Old 13 Jul 2016, 09:11 am
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Default Re: 08 cruiser overheating when stopped. But I've done all the standard repairs...

Members are already posting on another duplicate thread

We would suggest removing this one.

08 cruiser overheating when stopped. But I've done all the standard repairs...
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