Across
1. Flexible cooling-system components
4. Item between lifter and rocker arm
8. Carburetor venturis, in other words
9. Dash option since 1930s
10. Alternator output, briefly
11. Battery terminal
13. Ratchet adjunct
15. Problem provoking recall
18. Fastener with removable mandrel (3,5)
19. Ball- or roller-bearing component
22. Shift quadrant’s D
23. GM-owned auto-parts company (1,1,5)
24. Ashtray adjunct, perhaps
25. Zigzag road section, slangily
Down
1. Wheel-nut covers
2. Remove engine’s parts
3. Intake- or exhaust-valve section
4. Engine item with skirt and rings
5. Carried out routine maintenance
6. Tachometer’s warning mark
7. Alternator’s one-way electrical device
12. Gas-tank or fuel-pump-bowl deposits
14. Abnormal tread-wear type
16. Steering-linkage components (3,4)
17. Service-bay assignment
18. "Put the ____ to the metal"
20. Road-map compendium
21. Burn fuel pointlessly
