"Engine temp is low 140 degrees" Bad Thermostat (stuck open) "a ticking noise is coming from the upper part of the engine" Lifters Make a ticking noise, To stop that there are these bags that fill with oil. If you run low on oil the bags don't inflate at you get a clicking. Check you oil level!!! The bags could be bad, the oil supply could be clogged, or something else could be wrong.
Where is th ticking coming from?? The engine, the tires, the trunk????
If its coming from your engine, you may need a valve adjustment..
It sounds like the engine timing. The sound is coming from your engine valves. They're not in synch with the rest of your engine. It could also be that the valves are worn out. I'd check the timing first, then the seating on the valves.
i can only presume is lack of engine oil or adjustment on tappets( pls be more detailed)or diesel engine it being a injector blowing
harmonic balance maybe bad
from which part of your engine is the ticking noise coming from. if is the TOP it would most likely be lifter noise.try using a thicker oil.
Collapsed hydraulic lifter? - try a quart of mystery oil
collapsed lifter?
What causes ticking, check engine light, and the check gauges sensor to come on in a 1999 Dodge Durango 5.2L SUV?
Usually it's the lifters in the engine making that noise until they become fully pressurized with oil, then they stop ticking, like on the 3 liter caravans.
I would try an engine flush to clean the hydraulic lifters. Follow the directions on the can.
Faulty engine