What kind of tick are we talking about? See this thread here, I left a video (not my video) from youtube which you can clearly hear it ticking away, my truck sounds just like that and I'm also trying to track down what it is.
Anybody know what that ticking + high-pitched squeaking sound is? I'm hearing it in my engine and it's kind of driving me crazy.
5thgenrams.com
In my research so far, possible causes:
- exhaust manifold, the bolds shear off due to the use of binding two different metals together (which heat and contract differently); most common cause, very loud-ish
- lifters; some people recommend redline oil with high moly content and a better filter
- a poster on my thread above just mentioned water pump, I need to follow his suggestion and try that on mine