i have a ticking noise thats driving me mad .seems like its coming from rear of car, i have recently replaced fuel pump so dont know if its that.the noise is increasing with speed as in getting a faster ticking noise ,also is there a way to clean the jets of my nikki without taking it apart?

 

nail/rock in the tire?

 

Does the noise stop when you lightly depress the gas pedal? For the jets, run down to 1/8 tank of gas then add a can of seafoam (don't add more gas, keep the mixture strong). Drive it like you stole it and that might clean you out.