What's your problem?2.2 engine makes ticking noise at idle

First off, have a good look at the engine and the a/c, try to find any leaked fluids or stains, could find the problem. If you hear a hissing or wheezing sound it may simply be a gasket or tiny hole in a hose / vacuum line. Open the hood while at idle, see if you can echo locate the noise ( with and without a/c.running) Be careful to avoid the belts and fans. If you still can't locate it. The only other thing that comes to mind is the belts themselves, if one is worn of frayed it can make a noise every time it passes over a pulley. One last thought, make sure you're using the right octane gas, too low and the engine will knock and / or tick. Hope some of that helps you, Grim

I think your correct

It may be valve cam bearing noise

Not much you can do --unless you check
bulletins & then take it apart

sometimes pieces from inside your catalitic converter break loose and make a ticking noise and would be hard to spot without the engine running

use a timing light to check the degrees btdc
Should be 10-12 degrees btdc
could be injector click or hydraulic cam followers noise although I thing that would be audible on the coast action as well
check fuel pump as they click when working

forget the boyfriend and take it to an accredited service center for a proper diagnosis and quote
knocks are big ends or mains , and ticks are hydraulic followers
all could be a bad cam but a proper diagnosis will make sure

Ticking sound could be coming from a Coil-on-Plug, or a pcv valve, or (hope it's not) a valve lifter which could be sticking. Sticking lifter noise often disappears when rpm's change, or the noise comes & goes. try changing the motor oil & filter right after adding an Engine-Flush Treatment to the motor oil, running the engine for 10 minutes at idle with treatment added to the oil, then draining the oil & changing filter while oil is still very hot. That last part is very important, so be careful not to burn your hands - be careful. -- The sticking lifter is a likely cause if motor oil has not been changed at frequent intervals in the past (every 3-4K miles) -- dirty oil causes sticking lifters.

Rough idle / stall at idle Check for vacume leaks & split intake tube or loose clamps on intake. Noise put spot of grease on drive belts if noise goes you may need new belts or a tighten up.

not a transmission at that mileage
if it is from the engine it is not tire related but engine related
take it to an accredited service center that has experience on your make of car and have it properly diagnosed

This is probably tappet noise from the top end of the engine. However you should have it looked at quickly as these engines had a severe problem with oil sludging, even when recommended services were done.
This caused all sorts of problems, so see if you can get it fixed before the engine develops something terminal.
http://www.enginebuildermag.com/Article/66958/sludgy_saab_may_rattle_your_chain.aspx

Is the car making any funny noises from the engine, Like a tick or knock?. Could be a oil sending unit. can't be sure without seeing the car