my engine is making a slight ticking sound when the RPMs drop from either a rev or down shifting. it sounds like its coming from the valve train. doesn't trow any codes, isn't affecting idle at all and runs fine, but is becoming a course for concern. is anyone familiar with such a problem??????
95 mustang GT problem
- Thread starter JtravmustangGT
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It could be a rocker, lifter, or exhaust leak. I'd personally check them in terms of easiest to most difficult. Look for any evidence of exhaust leaks by checking for carbon buildup around any of the primary tubes near the heads. Even a leak at the collector can be disguised as being higher up, as the sound echoes around the engine compartment. Take a piece of heater hose and hold it to your ear, while probing it around the engine compartment, trying to locate the sound.
99FiveOh
10 Year Member
Another vote for exhaust leak. This always happened to me when I ran aftermarket headers. Every few months I'd blow a header gasket and it would sound like a lifter tapping.
