The lifter tap in my 88 has gotten steadily worse over the past 9 months. It first started ticking in the morning under 40 degrees, and would only tap for about 2 minutes.
Now it will tap on and off the whole time the engine is on. I can also sometimes hear a faint chugging sound coming from the exhaust while the tapping is going on.
I have tried a quart of MMO, half can of seafoam, (on different occasions) and nothing has cured it, or made it any better. No matter what I try, it just keeps getting worse and worse, tapping louder and longer.
If it comes and goes, is it a collapsed lifter? Or is it just sticky. What is the definition of a collapsed lifter??
Should I try a quart of trans fluid next? I really dont want to pull the head as this is my daily driver.
Now it will tap on and off the whole time the engine is on. I can also sometimes hear a faint chugging sound coming from the exhaust while the tapping is going on.
I have tried a quart of MMO, half can of seafoam, (on different occasions) and nothing has cured it, or made it any better. No matter what I try, it just keeps getting worse and worse, tapping louder and longer.
If it comes and goes, is it a collapsed lifter? Or is it just sticky. What is the definition of a collapsed lifter??
Should I try a quart of trans fluid next? I really dont want to pull the head as this is my daily driver.