Across
1. Radiators’ tubes-and-fins sections
4. Crash-activated devices (3,4)
8. Convertibles, slangily
9. Big brand in 14-Across components
10. Power-window system part
11. Suspension-system parts
12. Rejuvenate flat battery
14. Windshield-wiper components
18. Protrusion on an engine shaft (3,4)
20. Component absent in unibody car
22. Relationship between gears
23. Combination-wrench section (4,3)
24. Certain urban thoroughfares
25. Hood-mounted air intake
Down
1. Spark-plug insulator material
2. East, on road map
3. Technician’s wiper (4,3)
4. Variable-____ power steering
5. Reversible brake component
6. Adjusted camber, caster and toe-in
7. Decelerates
13. Gauge that measures current flow
15. Solid or hydraulic valve-train parts
16. Accelerate (5,2)
17. Really bad cars
18. Fuel/air mixers, briefly
19. Emissions-affected atmospheric layer
21. Final Olds offering
