We're is crank shaft sencer at 2008 Saturn astra

in the link

https://www.google.com/search?q=2008+saturn+astra+xr+replace+pcv+valve

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Question edited for clarity, Saturn 'Extra' to Astra.

https://www.700r4transmissionhq.com/saturn-astra-bad-serpentine-belt/

Saturn videos

https://www.google.com/search?q=2008+saturn+astra+xr+replace+serpentine+belt

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Third Brake Light Bulb Change Saturn Astra 2008 2008 2008 Saturn Astra XR...

try this link it might help you out... Where is the crank shaft position sensor on 2008 saturn astra 2dr xr...

http://www.saturn.com/content/dam/saturn/northamerica/usa/nscwebsite/en/Home/Owners/Owner_Resources/Manuals/en/us/2008/astra/2008-saturn-astra-owners-manual.pdf
Page 224

most crank sensors are located @ crank shaft damper pulley, unless somebody moved it with out telling me.

either you have a very bad battery, or your not guetting fuel for it to start.

Oil filter on 2008 Saturn Astra in inside of a canister that is located behind the radiator and a bit to the drivers side. A ONE-INCH socket is needed along with a ratchet, extension and universal joint to compensate for involved angle. Damage to the one-inch screw-on canister cap - I've seen a replacement available at eBay.

Probably not. All the vehicles are getting away from putting in fittings. Any time I replace a component I make sure the replacement has grease fittings.

the oil drain plug is on the bottom of the oil pan and the filter is on the top side of the engine toward the front. be ready for a mess!!