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Old 01-01-2011, 15:48   #1 (permalink)
1993 Ford Crown Vic LX
 
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headache with the coolant system...

ok here i am again :)

ok, i changed the valley hose, thermostat + gasket, water pump + gasket, intake manifold gasket, plenum gasket, egr + iac gaskets and 2 cracked vacuum hoses...

valley hose is from behind the water pump to intake manifold all is good.

thermostat is for 170 not 195 factory (i think that might be the reason?)

water pump was a bit beaten up, now it's new.

all the gaskets and vacuum hoses are all good as far as i can see

my problem? car started after a few seconds of hesitation, i let the car warm up for 10 minutes then drove no more than 20 MPH around 3 blocks. temp was HIGH!!! and water was bubbling and gushing out of reservoir... any thoughts???

one more note :) transmission fluids were a bit low so car was taking a while catching up to the gear..

can the tranny fluids or a 170 thermostat be the fault?

thanks :) and happy new years
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Old 01-01-2011, 15:57   #2 (permalink)
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Re: headache with the coolant system...

Check thermostat is not jammed shut .If not that sounds like cooling system is pressurising possibly due to head gasket . A block test will confirm or eliminate this .
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Old 01-01-2011, 16:35   #3 (permalink)
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Re: headache with the coolant system...

check the heater core
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Old 01-01-2011, 18:53   #4 (permalink)
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Re: headache with the coolant system...

@ R.S.LOGAN: I removed the thermostat and it was new so I don't know if that could be it... I imagine a head gasket repair would be a pain to fix?

@ Sterling_Six: I don't have the heater core connected to the heater hoses, I got it bypassed directly from the water pump to the intake...

As far as the over heating, I added two quarts of transmission fluid and removed the thermostat and the temp has been low so far. I drove it 30 minutes... I do see a small leak from where I drive (reversing, looking back and when turning corners, looking back) but I can't see it when the car is parked or idling... Water level doesn't seem any lower after I removed the thermostat...

If all goes well in the next week of driving, I'll add the coolant.

I really appreciate the input guys.
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Old 01-01-2011, 18:56   #5 (permalink)
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Re: headache with the coolant system...

I hope you'll be putting the thermostat back in. I usually leave the thermostat out while I refill the system. When I see coolant at the thermostat opening, I stop, put the thermostat in and then finish refilling the system.
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Old 01-02-2011, 11:36   #6 (permalink)
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Re: headache with the coolant system...

Test the thermostat and refit / replace as needed .
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Old 01-03-2011, 18:40   #7 (permalink)
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Re: headache with the coolant system...

@ Bert: I don't know if I should, car seems to still overheat when I drive out of town without the thermostat...

@ R.S.LOGAN: How do I test a thermostat?

Any other reasons as to what can be causing the overheating?

I'm going to reinstall the thermostat tonight, I'll relay the results tomorrow.
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Old 01-04-2011, 11:08   #8 (permalink)
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Re: headache with the coolant system...

To test , put thermostat in boiling water and see if it opens ok .
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Old 01-04-2011, 12:48   #9 (permalink)
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Re: headache with the coolant system...

Not always the case, but if there is no thermostat, sometimes the coolant doesn't stay in the radiator long enough to cool properly.
Was the thermostat installed in the proper direction?
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Old 01-04-2011, 17:48   #10 (permalink)
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Re: headache with the coolant system...

@ R.S.LOGAN: I got it working... kind of. I reinserted the thermostat last night and tested it today. The water temp seems to be stable now. Only thing now is that there is a leak from the reservoir area, as far as I can see from ground drippings.

@ thefonz: Well, I'm assuming I did install it correctly. The springs were toward the engine and the little cone was toward radiator??? Correct me if I'm wrong. But like I said, water seems to be dripping from the area where the reservoir is but I can't see drips or drops when the hood is open.

I'll try to take a closer look tomorrow, winter doesn't give proper time for enough light this time of day... err night.
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