I've learned that there are many repairs that can be performed DIY. For myself, there are four items that I outsource to professionals. However, I am very very particular when it comes to the professionals I outsource to.

1. A/C work. A/C is a complex subject and IMHO, requires the services of a professional. For every ten hours I spend screwing around with the A/C, a professional will have the problem solved in less than ten minutes. My time is worth SOMETHING.

2. Transmission repair. Let's face it, transmissions are big and HEAVY and require a degree in rocket science to repair. Again, what would take me ten hours to accomplish will be accomplished in one hour by a transmission specialist.

3. Timing chain replacement. Yes, I know many on this forum have accomplished this feat by themselves. One thing for sure, screw up this job and you may end up buying a new engine. IMHO, not worth it, enjoy a Pepsi while your local professional engine man changes the timing chain.

4. Front end and suspension work. I don't enjoy lying on my back for hours staring at the underside of a car. Screw up a spring install and it could kill you. Let someone else break their nuts on these repairs. I have no problem in paying for this service.

For the most part, I'll get in and attempt anything else. DIY repairs can be enjoyable and there is always something to be learned.