Hi all need some help if you can.

I own a Ford Orion 1.6 CVH (1993 i think(J reg)) 83000 miles. I havent had it long and has been a good running till now. I have a couple problems :

1. Wether the engine is hot or cold i have alot of juddering when i push the throttle, any gear doesn`t matter, i have replaced the spark plugs, HT leads and the coil and that hasn`t sorted the problem. It can get a bit hairy when i am in traffic and the car suddenly jumps forward.

2. The heat coming out of the heater matrix is no way near hot enough. I get into the car in the morning and i have to wait about 10mins before i can see out of the window and even then its still misted. I have flushed the cooling sysytem out and plugged a hose line into the base of the matrix to wash out and debris and blockage, but i still dont have much heat. The base of the matrix is hot and there is a little heat there, but with the winter here now i need more to drive.

If anyone has any ideas what these problems are and how to sort them out i would be really grateful as i and my mates have run out of ideas and i cant afford to let someone rip me off if its something simple.

Cheers all