Volvo: what to look for, power steering leaks, rear main oil seal

Question
Thank you it helped and I did not buy. I am moving on to the next one and it is an 87 760 turbo asking price is $700. What should I look for. It is for my niece who doesn't have a lot of money for repairs. I will also need to be able to drive it 400 miles to deliver it to her. Any help would be appreciated.
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Followup To

Question -
I am going this afternoon to look at an 85 240 GL. The owner says it has 350,000 miles and it just passed emissions. I am not familiar with volvo cars at all. I am purchasing for my niece who lives 400 miles away so it will need to be able to make it the distance. What should I look for when I view the car? I am knowledgable about cars as I do most of my own work on my currect vehicles. Any help would be appreciated.

Answer -
Jerry,
Under the hood look at the wire harness along the firewall and where it goes between the 3rd and 4th runner of the intake. Make sure the insulation is good. Get under the car and check the front end "A" arm bushings and ball joints and the tie rod ends inner and outer. See what condition the brakes are in. Make sure the exhaust is good and the manifold gaskets are good. Look at the area between the trans and engine see if there is any oil leaks from the rear main oil seal. While under the car inspect the bottom for rust along the bottom, paying attention between the rocker panels and the underside. Look for any power steering leaks also. Drive the car at  both highway and city speeds making sure there are not any noticable problems. Feel the shifts while driving for smoothness and if they are on time. Try all the lights wipers etc. doors and deck lid test the central locking system and see if the blower motor heat and A/C work properly.

Answer
Jerry,
In addition to the last check list I would look at the intercooler hose to see that they are not failing or soft. If they fail the car will not have any power making it a needed repair. Check for the needed service and test drive the car to make sure that all things work or that you are prepared to take on the task of the repair.