Hello! I am having an issue with my 92 Chevrolet Silverado K1500 V8 5.7L 350. When I am in any gear (EXCEPT REVERSE) and at a stop, it makes this "ticking noise" like ti ti ti ti ti ti ti. Could also say tic tic tic tic tic. IT WILL NOT DO IT IN REVERSE... Does anyone know what can be causing...