2000 Ford Contour heater and temperature problems

DWAIN

MEMBER
2000 FORD CONTOUR
6 CYL
FWD
AUTOMATIC
160,000 MILES

My 2000 ford contour with a 2.5 liter engine will start blowing cold air and the temperature gauge will go all the way up to hot and then it blows hot air and the temperature gauge goes back to normal operating range. Ive changed the thermostat and the etc sensor as well as the upper radiator hose. Any ideas

4 Replies

RASMATAZ

MECHANIC
75,992 POSTS

Sounds like you need to bleed the cooling system

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Wednesday, March 23rd, 2011 AT 9:07 PM

WRENCHTECH

MECHANIC
20,757 POSTS

You likely have a leak in the system and you need to pressure test the system to find and repair it. Bleeding the system will work temporarily but the problem will return when it gets low again and you are risking doing serious engine damage in the meantime.

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Wednesday, March 23rd, 2011 AT 9:26 PM

DWAIN

MEMBER
2 POSTS

Thanx for replying. I check my coolant regularly and the coolant has always been at the rite level and there are no spots on the ground where I park my car. How would I go about bleeding the system? And how would that solve my issue. Any ideas are welcome. Ive been trying to fix this problem for 2 and a half months and I am very frustrated

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Wednesday, March 23rd, 2011 AT 11:36 PM

WRENCHTECH

MECHANIC
20,757 POSTS

The system can't get air into it without a leak. It can be evaporating before it hits the ground. You do need to pressure test to find out where it's going.

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Wednesday, March 23rd, 2011 AT 11:39 PM