
Originally Posted by
blink21me
I also wanted to add... there is that method we call "dollar test"; you take a dollar (doesn't necesarrily have to be a "$" bill, but you get the idea) and put it on top of the muffler tip, half of it on lying on top of the muffler, and the other half hanging within the hole of the muffler. Have someone turn the car on, if the dollar gets sucked and went inside the muffler, you have a valve leak... otherwise the valves are ok... I don't know if this is to all cars, but it's pretty popular to many different car owners and seems to work pretty accurately...