4 cyl car will "rev"

Check map sensor or throttle control sensor

Clutch plate and pressure plate seem to be too weak to pull the car. Or one of the CV joints is detached from the gear box. To test the clutch plate, park the car on flat surface. Pull the hand brake up, start the car, depress the foot brake pedal, depress the clutch pedal, put the car in 1st gear, press the gas pedal and leave the clutch pedal at once, while keeping the brake pedal depressed.
Follow one of the two following statements:
1. Engine does not shut down and remain start. (Clutch plate, pressure plate and clutch bearing defective - Replace all as a set)
2. Engine shuts down. (Clutch system is OK and does not require any repair).

Your clutch needs to be replaced.

Some of that model had an unusual clutch mechanism, which has probably broken due to wear. Read here

http://wiki.answers.com/Q/How_to_adjust_clutch_on_1995_ford_escort

In the event yours is instead fitted with a hydraulic clutch, either

- the hose has split
- the clutch throwout lever has broken or collapsed

Looks like a clutch master cylinder or slave cylinder malfunction.

Have you just replaced the clutch? Taken out the transaxle, and put it back in? Are you sure transmission was in good condition before this? If so, review your procedure carefully to be sure you got it all back right.
Watch the slave cylinder while someone depresses clutch. You should see the little plunger move slightly out and move the clutch lever back. The lever moves the release bearing inside bell housing into contact with the pressure plate. If slave cylinder doesn't move at all, try bleeding again. The plunger has to move when clutch is engaged.
I'm not sure what you mean by "will shift but won't go into gear". You mean it's actually going into a gear position and car won't move? Or it won't go into any gear, period. As if you had no clutch?

That cylinder is known as the clutch slave cylinder. It should push against the clutch fork every time the clutch pedal is depressed to allow gear changes. If it doesn't, suspect a faulty slave cylinder, or clutch master cylinder.

you may have a bad clutch switch which will only allow the car to start with the clutch pedal depressed.it allows power through the switch only with it depressed to start the car so you won`t start the car with it in gear causing an accident.there will be a switch that the clutch pedal pushes against that allows power to flow through it to start the car.there should be power on one side with the key turned on and power on the other side with the clutch depressed.

2006 colorado
Don't waste your money on unnecessary sources and unwanted repairs.
Get this manual online under $10-15 and get complete guide on whether to repair or not, service it, and how to repair etc

it's not if you have hydraulic system.
check to see if the clutch pedal is firm and has pressure
start your engine, depress the clutch pedal and put it in gear
if it goes in gear easily and the car won't move then you need clutch