Valve lash adjusters or timing chain tensioners bad on a 4.7?
#1
Valve lash adjusters or timing chain tensioners bad on a 4.7?
I get a loud rattle noise when I start the truck cold for about 2 seconds. First I thought it might be from the valve lash adjusters bleeding down, but now the more that I hear it, I'm leaning towards the chain tensioners bleeding down. That's assuming they are hydraulic? The truck has 202K miles and runs fine otherwise. Any thoughts?
#2
Well it depends on where the noise is coming from. If it is coming from the front of the head then I am going to say timing chain tensioner or chains.
Mine would make noise for a few seconds at first then it got worse and worse.
I replaced all the lifters last month and it helped a little.
I just ordered a chain kit and will start on the timing chains next weekend.
Mine would make noise for a few seconds at first then it got worse and worse.
I replaced all the lifters last month and it helped a little.
I just ordered a chain kit and will start on the timing chains next weekend.