There are two. To trace these looks for the yellow fire resistant wrapped wires at the firewall at back of engine compartment. The front O2 sensor runns from there to the a point below on the exhaust manifold and seat in just at the "throat" of the Cat converter. The "rear " O2 sensor continues down and is seated "after" the Cat Converter. Gat the O2 sensor removal wrench and open end wrench much like a plummers faucet wrench that will access the O2 sensors. Makes the job that must easeier to remove the O2 sensors.

Open the hood. Near the front of the turn signal assembly there is a Phillips head screw. Loosen but do not remove the screw; it releases the front of the assembly. You then need to pull forward to release the pin holding the rear of the assembly.

Reverse the above to replace the assembly.

Yes, you can. Premium is recommended, but not required. If you intend to keep the car for a long period of time, the engine will operate better with premium.

On my 2001 as all I belive it is above,next the drivers rt knee next to the center console Rt hand drive. You have to kneel on the ground to find it, after many hook ups I use the force to plug it in , LOL By Dag III

With filter 2.1 Qts

I would Google the make, model and year of your car...and see how much a replacement engine (new and used) would cost. Then I would ask the repair shop how much they charge to change out an engine. I would ask...if the 5k is an installed price for the engine..assuming it's the engine that needs repaired..you were very vague...the repair shop a breakdown on the engine price and the labor charge The other way to answer your question is financial. You have no influence over the $8000 owed on a loan so ignore that for now. Your decision rests with whether to sell or repair the car. What is the value of the dead car now and repaired? If the repair raises the value by $5000, then by all means have it fixed. You then have use of the car and can always sell and recoup your $5000. The $8000 comes into the picture if you don't have the cashflow to make the payments and make the repair - hopefully you have access to cash to keep your options open. Good luck!

S40 Engine code B4184S Maximum head bolt length 158mm Stage 1. 20Nm Stage 2. 60Nm Stage 3. + 130 degrees.

The manual on the 2004.5 5cyl s40 Volvo says every 7500 miles

I have heard 145 MPH but I'm not brave enough to test that out on mine!!!

EBay Pulse is a good tool to use and find out the keywords with the most number of searches by buyers. Go to eBay Pulse at http://pulse.ebay.com to see the top ten most popular searches. The most popular searches are also given for each category.

put car in park. loosen lug nuts on flat tire. jack car up just high enough to remove flat tire. remove lug nuts. remove flat tire. replace with new tire. put lug nuts back on and tighten. lower jack. drive away