I replaced my timing chain tensioner today and I went to start my car after and it had a terrible noise and would not stop and my car went into low power mode and started missing and my car ran fine before I changed this part now it's horrible. My buddy is thinking that somehow it possibly jumped time but he's not 100%... I really need help I've had the car a week and now it's just sitting in my driveway and I'm pretty sick to my stomach about it.

 

sounds to me like you didnt set the tensioner....... if the tensioner was retracted/locked and only sticking out a little bit. and you jsut spun it in then chances are you fired the car without tension on the timing chain. if it started missing and what not then i can guarentee it jumped time.

what did you do to install the tensioner? did you hold the cams and such?

 

Did you replace it with the new hydraulic type tensioner?

 

I took the vale cover off and when I did put the new tensioner in the chain got tight but when I turned on my car it sounded horrible and was in low power mode still.

Yes

 

did you unlock the tensioner? was the boss in the tensioner inline with the guides???? pull the valve cover look at the timing chain.

 

Yes I did all that and I turned it on and it's making a horrible noise and is in low power mode.

Yes

 

the motors out of time. did you pull the valve cover after the noise?

 

Yes I did

 

Welcome

 

Just saying yes and that the car is in low power mode is not helping anyone help you.

How did you hold the cams?
How did you unlock the tensionor?
Was there slack in the cahin after the install?