when i put my foot on the clutch a loud thumping noise comes from the transmission are and the whole engine shakes violently.. im already replacing the clutch as it has 150k miles on it anyways. but could it have been the fuel pump? why would the engine shake only when the clutch is depressed and not when its in neutral if it was a bad fuel pump?

 

if it was a bad fuel pump your car wouldnt start.

 

thats what i thought. a friend of mine said its the fuel pump because fuel isnt being given where its needed. which made no sense because it only did it when the clutch was depressed. thx

 

wow so does the shaking happen when the engine is idiling or when you have revvs on it? and is the clutch engaged or dissengaged?

 

the shaking only happens when the clutch is engaged. in neutral at idle its perfect.