The_Herf

Um, I (still have) had a similar noise in my engine compartment coming form the front of the valve cover. It could be enginve sludge stopping up your oil pump filter not allowing sufficient oil flow to your belt tensioners creating a tick, or a knock as mine happened. IF the person that had it before you didnt service the car regularly, it is quite possible that htis is the problem. As you stated, it was 2.5 quarts low, that could be a sign imo. IF the car is worth it to you, I suggest bringing it into a shop to be diagnosed, because, as others have pointed out, it could be any number of problems.

damdanger

dont foget about the lovely slack in the timing chain, thats what im dealing with now

mustangman02232

could be a lifter, try this, take off the oil filter and drain the oil out of it, do not compltely drain the oil just whats in the filter, then top it off with tranny fluid, and fill up with chevron techron gas, or as shell calls it V-power, then compltely change the oil in a week or so

CJFANNI

Being a mechanic you should know that if you add motor honey to the engine it will stop ticking for a little bit, so the guy you bought it from might have did something to that nature to stop ticking long enough for you to take it home and do a 360.

GodAmGT00

I'm not advocating the fact that your engine may have some serious bearing trouble, but this quote alone, makes me think otherwise...


If you're 2.5qts LOW on a 5.5qt system, that ALONE on LEVEL ground is enough to constitute LOW OIL PRESSURE. Never trust the stock gauges, since they are usually only there are reference, and should never be taken at complete face value..


If you're going around in a circle, and don't have good enough baffling in your oil pan, being 2.5 qts low, o r being 4qts low wouldn't make much of a difference.. You're still putting your entire rotating assembly at risk...

Have you tried to Sea-Foam, or clean the engine internals?? My first bet is a stick valve.. Doesn't take much to clean.. Search on the Archives here for tips on Engine Internal Cleaning...

So what, still making the noise after you've cleaned it??

Best thing to do now, is get some Feeler guages, pull your oil pan, and check your tolerances. While you're at it, check the oil pain for metal flakes, shavings, or otherwise foreign objects... If all of those things come up negative, then move on...


Oh, and someone said to check for adjustment.. 99% of all hydraulic valve trains are not lash-adjustable, they automatically adjust....



JT

Dan04COBRA

Where is the lifter in a modular motor? [8D]

cobrapony27

4.6s have hydralic lash adjusters which are commonly called lifters, but do no lifting to open the valve. All they do adjust the valve lash automaticly, and cannot be adjusted. One end of the cam follower sets on the lash adjuster and the other on the valve, and the cam rotates around and works the follower to open the valve. Hope this clears up things.

I have delt with this valve train alot in circle tracking, and its very realiable, but every now and then a lash adjuster would blow apart or pump up and cause a ticking noise.

GodAmGT00

Thank you for clarifying my broken text... I forgot what they called them exactly...




JT

cobrapony27

No problem man, your welcome. i forget half the time what there called.

jkade just follow godamgt's advice and that should let you find something out.

Miliock

Don't the injectors make a "ticking noise" I know mine do lol