Do you have the coolant temperature sensor plugged in?Dude, you were right. I took entire system apart and replaced every hose. I also did a tune up, replaced wires, removed the egr, and added a new thermostat. Now the car responds and drives like new. My only issue now is that the cooling temp needle won't move from cold. I let it run with the heat on. I get heat in the cabin and still, the needle won't move. Any suggestions?.,,.Thanks.
Should be located on the top of the thermostat housing.
Since you have heat in the car, I doubt the engine isn't getting up to temperature.
I'd check the sensor and wiring.