Hi I have a 1990 Honda accord That make a really loud ticking noise when I turn it on and as the car warms the sound goes away.And then I can hear it as I accelerate and the rpm goes high. At first I though it was a bad Valve lifter, but after reading forums and getting some other yahoo answers I figured that it's more likely to be an Exhaust Manifold Leak. Does anyone know how much it would cost me to fix this problem on a 1990 Honda accord? Thanks in advance.