Tachometer Test
Connect a tune-up test tachometer and start engine. Compare vehicle tachometer RPM reading against test tachometer. If vehicle tachometer reading is outside allowable range, replace tachometer. See the TACHOMETER TEST table.
TACHOMETER TEST
| Vehicle RPM Reading | Allowable Range |
|---|---|
| 700 | 630-770 |
| 1000 | 900-1000 |
| 2000 | 1850-2150 |
| 3000 | 2800-3200 |
| 4000 | 3800-4200 |
| 5000 | 4800-5200 |
| 6000 | 5750-6250 |