Hi guys, I am only new here and am enjoying the site.
I have a question about my 03 Hilux diesel which has the 5LE engine. Before I purchased it, I test drove a couple of others of identical model that seemed to have a common ticking/flutterring type noise coming from the engine bay, more noticeable with windows up and a/c on. The one I bought didn't have this noise and was quite quiet. Mine has now developed the same noise. I have 165,000k on clock and it has had all services including t-belt at 150,000kms as recommended. It has done a few creek crossings 400 to 500 mm deep in last 12 months and I think that the noise may have developed since then. My missus was following me on my motorbike, so I wasn't in the vehicle to notice any sudden change after the last one.
I have the feeling it may be a cracked manifold or similar as it is a sucking or blowing air type noise. There is nothing obvious to see, there is no noticeable power difference, although it's less noisy when easy on the throttle. I was wondering if anyone here might have some ideas, seeing as this may be a common problem and where to start. I was just going to let it go, but it's starting to give me the shits.
Cheers