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A free site for automotive emissions related information including interactive on-line visual inspection training, automotive tutorials on emissions control systems, emissions inspection cartoons, and a discussion forum for those interested in the emissions inspection trade.

Various tips for car care and maintenance. Common repair items, what's under the hood, links to other automotive sites, and automotive engineering links.

Information source for trouble shooting, repair and maintenance for various makes and models of motor cars.

The United States' largest independent car and truck repair helpline. Through Autoshop Online you gain direct access to experts and information for solving automotive problems.

Lists common automotive ECU failure symptoms and diagnostic checklists.

Designed to assist the do-it-yourselfer with performing automobile repairs and getting extended vehicle service life through preventive maintenance.

Repair information for autos, cars and trucks. Links to garage shop facilities to make appointments.

An ASE Master Technician Gets you the free help and answers that you need now.

If you have a car repair question, Professional Mechanics Online will answer it for free.