Overheating

Tiny
BORICUA1975
  • MEMBER
  • FORD CONTOUR
I bought a car from my sister wich had gave her problems of overheating. I replaced the head gasket got the heads machined, replaced the water pump, replaced the thermostat, and replaced the radiator and cap. Refilled the system 50/50 turned on the car and it stills overheat. By the way this is a ford contour 2.0 dohc. Can anyone tell me what else did I miss. Thanks
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Tuesday, November 6th, 2007 AT 4:00 PM

12 Replies

Tiny
RASMATAZ
  • MEMBER
Try bleeding it

Always bleed air from cooling system after replacing coolant. Set heater for maximum heat. Remove radiator cap. Loosen drain plug and remove drain bolt (if equipped) from engine block. Drain coolant reservoir. Fill coolant reservoir to MAX mark with 50/50 water-coolant mixture. Loosen bleed bolt and fill radiator up to base of filler neck. Close bleed bolt when coolant flows out without bubbles. Tighten bleed bolt. With radiator cap removed, start and operate engine to normal operating temperature. Add coolant if necessary and check for leaks.
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Tuesday, November 6th, 2007 AT 4:04 PM
Tiny
BORICUA1975
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I already bleede the system the problem still stays the same. This is a 1996 ford contour 2.0 dohc.
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Tuesday, November 6th, 2007 AT 4:13 PM
Tiny
RASMATAZ
  • MEMBER
Get it chemically check by using the block check to find out if it has a combustion leakage.
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Tuesday, November 6th, 2007 AT 4:17 PM
Tiny
BORICUA1975
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Is this something I can do or do I have to take it in to the mechanic. If it is the leakage in the combustion chamber what would be the symptoms of the car. The car starts up fine and idles normal. What needs to be fixed and the cost would be. Thanks
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Tuesday, November 6th, 2007 AT 4:30 PM
Tiny
RASMATAZ
  • MEMBER
Take the thermostat out and see what happens.
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Tuesday, November 6th, 2007 AT 4:41 PM
Tiny
BORICUA1975
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I will try this tomorrow on the 7th of november. Will leave message to let you know what happened. Thanks again.
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Tuesday, November 6th, 2007 AT 4:51 PM
Tiny
BORICUA1975
  • MEMBER
Hi rasmataz, I removed the thermostat and there is pressure on the top hose when on high idle so the pump is circulating. But the car overheated alot faster then with the thermostat on. Not only that but the thermo housing which is plastic cracked right where the sensor is at. What do you think. Does the heater core has anything to do with at. Thats the only thing I did not replaced.
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Wednesday, November 7th, 2007 AT 12:47 PM
Tiny
BORICUA1975
  • MEMBER
Okay I am still waiting for a response. I fiigure since I donated I will get a fast response. Can someone answer my question. Thanks
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Thursday, November 8th, 2007 AT 3:41 PM
Tiny
RASMATAZ
  • MEMBER
I don't think the heater core is involved here. But you can try looping it around and see what happens. I would recommend doing a pressure test to rule out combustion leakage and the a test of the radiator cap. Since you're sure the water pump is doing its job-sounds more like an airflow problem-

Might want to check the radiator for clogging

Have it block and pressure tested-do the block first to pinpoint a combustion leaking into the cooling system or a gas analyzer to sniff for hydrocarbons at the radiator fill neck.

Pressure test: do not do a pressure test if there's leakage at the headgasket this might cause coolant into the cylinders and lock it up or bend a connecting rod if cranked thereafter. The headgasket should be repaired before doing the pressure test.

If the block and pressure test passes check the following: Pressure test the Rad. Cap, Clogged radiator, Fan clutch, Radiator electrical fan, collaspe hoses, water pump.
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Friday, November 9th, 2007 AT 6:19 AM
Tiny
BORICUA1975
  • MEMBER
Thanks for writing back. I will take it in to the mechanic to get it pressure tested. I will let you know what happened. Don t know how long they will take but I will keep you informed. Thanks again I know your probably busy.
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Friday, November 9th, 2007 AT 9:32 AM
Tiny
BORICUA1975
  • MEMBER
Hey Rasmataz, I got the car back The pressure test passed, I decided to remove the water again when I pulled it off the inside propellar was cracked. Thats why it took so long for it to overheat. It was not getting a complete circulation. I went to the dealer and bought the original pump instead of the remanufactured one. I nstalled it and now the car is running like it was new again. Thanks again for the info.
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Tuesday, November 20th, 2007 AT 3:35 PM
Tiny
RASMATAZ
  • MEMBER
Thank You Sir for coming back and letting me know what the fix is and it'll be recorded in my files for other people in need with a similar problem.

You have a nice Thanksgiving Day and TYVM for the donation. God Bless
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Tuesday, November 20th, 2007 AT 3:40 PM

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