When a compressor is recieved saying it needs a certain amount of oil, they are not talking about pouring the oil into either the high pressure port or the low pressure port. A compressor is almost like a miniature engine. If you look on the body of the compressor at the top and in the middle of the...

I can't comment on other causes for your bad compression results except for the following, which is universal among all piston engines... Putting oil into the cylinder will temporarily raise the compression if the problem is worn or broken piston rings. The fact you are not seeing smoke is irrelevan...

I have an 850, so I may be talking out of turn here. On every serpintine belt I have ever seen (and that is many different makes, not just Volvos) the serpintine belt is tensioned by a pulley that is spring loaded. That is to say the tension is determined by the spring on the tensioner pulley. There...

All autombiles made after 1996 use an on board diagnostic system (OBD II). Somewhere inside the car (on my 1995 850 Turbo it is under the coin holder in front of the shifter) there is a connector where a code reader will connect. The location of this connector varies with the make of the car as well...

Were the bubbles consistant? If so then its one or more of 4 things #1 cracked cylinder #2head gasket #3 warped head #4 cracked head ,now i know in your mind your thinking about a massive crack but working as a machinist in the past ive seen very minute hairline cracks that would cause this to happ...

Premature failure of a wheel bearing can also be attributed to driving over a pothole or an object in the road. Any type of severe bump places an unbelievabl shock load on the bearings. This shock can cause the bearing to fail because of "brinelling" the bearing race. This will result on a...

My experience with a whining noise on a cold engine has shown such noise is most often associated with the power steering system. There are several things in it that could cause the noise. It could be the pump itself, a check valve, a kinked hose or pipe or even the steering rack. If you have a mech...

A template is usually a piece of thin cardboard like poster board. Templates used for installation of anything that requires holes being drilled in a precise manner and location. They will usually come with the part being bought and may be part of the packaging your spoiler came in. Templates are no...

My Haynes manual has instructions on using the under hood diagnostic unit. As for your drain plug, do a search for Mobil Labs or call them at 800 427 5905. For a small fee (around $25.00 five years ago) they will test your oil and tell you exactly what contaminants are in it and if metal is present ...

There are some very detailed posts on replacing the timing belt. The members of this site have a collective knowledge that is not to be found elsewhere. Do not wait on the timing belt.... If it breaks you have just turned your engine into junk. An OEM quality belt is less than 40 bucks and the job i...