When i start my cobalt from a cold start it ticks from a slow tick at idle and increases with RPMs. Im thinking its probably a lifter ticking but i want to more input on it to help me be sure. I cant really get a video because its quiet which makes me know its not a rod knocking.

What makes a lifter start ticking and how do i fix it? Best method for the money?

Thanks, Logan.


Also i do raise immortal hell in the Cobalt lol

 

Maybe its the tensioner?

 

Not sure. Ill definetly check though. But would the tensioner stop ticking when the engine is warm?

 

The tensioner is oil pressure dependant. What year is your car? Old style tensioners should be replaced asap they can fail and jump timing.

 

since we have overhead cams we don't have lifters or push rods, just rocker arms

 

We do have hydraulic lifters or are they considered something else?

 

Ill be changing mine in a couple of hrs.... Since mine stops ticking when warmed up maybe we have the same issue.... But ill keep u posted

 

Youre changing your tensioner?

 

Yea the timing tensioner. I was gonna do it right now but still have to drive around so I guess ill do it tomorrow morning

 

Have you ever had the head apart? There's definitely lifters. I have it too when I first start up the car and it's cold. Goes away after it warms up. I even took them all out and cleaned them.

 

Tensioner would only tick until oil pressure builds up(couple seconds). Exhaust leak can sound the same, but would go away when the head warms up unless its really bad.

 

Hope mine gets fixed tomorrow morning when I install the new tensioner.... If not.. ill cry

 

timing chain assembly and guides

 

I installed a new header and downpipe around a month ago with new gaskets. I rechecked my torque on the bolts last week so i know its not an exhaust leak.