how loud can a lifter get. so at first i thogh it was a lifter. but now its really loud. when i drive by a building i can here the tick reflect off of it. when the engine is up to temp its quiet but when i accelerate it comes back and its loud. some one told me it could be an exhaust manifold. could it?

89 4.0 362,xxx miles

 

Cracked Header, a rod would get loaser when hot. header will tyend to reseal when hot.

 

On my old f-150 the manifold was cracked and after 5 minutes it sealed it self back up only did it when cold

 

broken flex plate

 

hard to tell with that many miles what it could be

 

changes only with RPM. it dos it in park or neutral. but more when under a load

 

holy cow, almost 400K miles?! That's amazing!

(Sorry, I have nothing valuable to bring to this thread, other than this )

 

spun bearing or rod about to go for a ride

 

hows the oil??

 

Do you have access to a stethescope? See picture. You could borrow or buy one and listen to various parts on the engine when you start it. It is most likely an exhaust manifold leak from the sounds of it. Google using the Stethescope and you will find lots of info on how to use it. Quite a helpful instrument! Not too expensive at Sears.

 

Dang I thought my 307K was high thats pretty good.

 

im really strict about this. its changed every 3,000 mi and right now its got about 120 mi on it. still gold and clean

chevron 10w30

 

hmmm. ya ill try that. NEVER seen one of those before. cool

 

flex plate turns in park and neutral
and changes speed with engine rpm also under load

 

the exhaust manifolds are known to crack and they make a bad ticking noise... it did it so much that jeep changed the part and made a new one with flex pipe in it.. thats what my guess would be