Have you ever used a auto windshild repair kit, if you did, does it work and how long will it last?

I sold a car for a friend’s friend a couple of weeks ago via eBay. The buyer sent a cashiers check and after I took out my fee I paid the buyer for the car. In return I got the car and a title. A few days ago I was going to drive the car to meet the seller and the fuel pump went out. I had to get the auto towed to a local Firestone where the auto still resides. The fuel pump repair is $875. The seller will not pay for it as they say “I already got paid and signed over the title so it’s your problem”. The buyer wants a car that runs or his money back. The seller will not give the money back and told me it is my problem. Who is responsible to repair ther auto? Good or bad – no contract was drawn up for the services I provided in selling their car. Any help is MUCH appreciated. Thanks.
I also wanted to point out that I am not a dealer and was paid only to sell and deliver the car. It was a 1999 Cadillac Deville. On my way to deliver the car to the buyer is when the car shut down on me.

I am currently an MRI technician but am just not into it. I love working on cars but the base pay for a new auto technician is average at best. I am currently making $22 an hour in michigan so it would have to be at least that. Is their any kind of specialties that would pay more? Where would I go to receive the training?

I am having a bitch of a time trying to find an auto repair manual for my car. Are there websites where you can download the manuals for free?

What company allow you to do monthly payment or weekly on auto repair bills? Does Amoccoca? I have no credit history or credit card! please help what should I do ? I love my vechiles.

Tripple AAA can help me ? How?

This a Survey for My Auto Shop to better serve the customer.