1994 Ford Probe Over heating!

Tiny
KOVI2121
  • MEMBER
  • 1994 FORD PROBE
1994 Ford Probe 6 cyl Front Wheel Drive Manual

I have a 1994 Ford Probe GT well this car over heats, I have replaced the entire cooling system kinda like a previous question it will run all day at an idle and be fine but when I start driving it, it will get really hot. Which it does spill coolent every where so it's not just a faulty gauge, I was told it was a cracked or warped head by a mechanic that didn't even look at it but no water in my oil, others tell me to flush the cooling system, "How do I do that?" Have not done a compression test yet but am going to but what should a ok compression test read?
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Sunday, December 7th, 2008 AT 7:01 PM

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Tiny
DAVE H
  • EXPERT
This sounds more like the thermostat is jammed closed or the water pump is not working. Your getting a pressure build up if it's throwing water out?. Try pressure testing the cooling system.

FLUSHING
CAUTION:Some manufacturers use an aluminum and plastic radiator. Flushing solution must be compatible with aluminum.

Radiator
Connect flushing gun to water outlet of radiator. Disconnect water inlet hose. To prevent flooding engine, use a hose connected to radiator inlet. Use air in short bursts to prevent damage to radiator. Continue flushing until water runs clear.
Engine Block
To flush engine, remove thermostat. Connect flushing gun to water outlet of radiator. Use air in short bursts to prevent damage to radiator. Continue flushing until water runs clear.
REFILLING

To prevent air from being trapped in engine block, engine should be running when refilling cooling system. After system is full, continue running engine until thermostat is open, then recheck fill level. Do not overfill system.

ENGINE COMPRESSION
Warm engine to normal operating temperature. Check compression at cranking speed with throttle wide open and all spark plugs removed. Ensure crankcase is at correct level and oil is correct viscosity. With compression gauge installed, use remote starter to crank engine.
Crank engine 5 revolutions (minimum) and record highest reading. Repeat procedure for all cylinders using approximately same number of revolutions. Lowest compression reading should not be less than 75 percent of highest compression reading. Cylinder compression readings should not be less than 100 psi (7 kg/cm2 ).
COMPRESSION RATIO SPECIFICATIONS
Application. Compression Ratio
1.8L.9.0:1
1.9L.9.0:1
2.0L.9.0:1
2.3L.9.0:1
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Sunday, December 7th, 2008 AT 7:24 PM

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