Usually caused by spark plugs not igniting properly. Check that your spark plugs and and your spark plug wires are in tact and working.
because it is going uphill and the engine has to work harder?
Needs new plugs and leads.
Hi! I am no mechanic, but will try to offer a few explanations. It is very possible that your clutch has worn out. The clutch essentially consists of two plates which contact when your foot is off the clutch pedal ( or when you are not changing gear in an automatic). The stress of going uphill could be causing the two plates to slip against each other before grabbing again, causing the car to shudder as power is abrubtly applied to the wheels in a staccato way. There may be a smell of burning too. Alternatively, perhaps the engine may not be running on all cylinders, which will result in a clunky sound, or the timing may be out, which will result in what is called pinking. (see the wikipedia site). http://en.wikipedia.org/wiki/Engine_knocking Hope this helps.
Uphill Battle ended in 2005.
Uphill Battle was created in 1999.
Malcolm Uphill died in 1999.
Tom Uphill died in 1962.
No one can swim uphill.
The park near my house is very uphill
Uphill Climb was created in 1987-03.
Uphill Rush 3 is out there just google it. enjoy:)
The Nille River flows uphill