Oil Pressure Test: Troubleshooting
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2008 Suzuki Reno, 2008 Suzuki Forenza, 2007 Suzuki Reno, 2007 Suzuki Forenza, and 2006 Suzuki Reno. However, it is still accessible from the selected car via links, so may be relevant.
TROUBLESHOOTING
| Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
| 1 | Is the oil pressure warning lamp ON? | - | Go to Step 2 | System OK |
| 2 | Check the oil level in the crankcase. Is the oil level low? |
- | Go to Step 3 | Go to Step 4 |
| 3 | Add oil so that the oil level is up to the full mark on the indicator. Is the repair complete? |
- | Go to Step 1 | - |
| 4 | Check the idle speed. Is the idle speed below the specified value? |
825 rpm | Go to Step 5 | Go to Step 6 |
| 5 | Increase the idle speed. Is the speed increased? |
- | Go to Step 1 | - |
| 6 | Inspect the oil pressure switch. Is the oil pressure switch incorrect or malfunctioning? |
- | Go to Step 7 | Go to Step 8 |
| 7 | Install a new oil pressure switch. Is the repair complete? |
- | Go to Step 1 | - |
| 8 | Inspect the oil pressure gauge. Is the oil pressure gauge incorrect or malfunctioning? |
- | Go to Step 9 | Go to Step 10 |
| 9 | Install a new oil pressure gauge. Is the repair complete? |
- | Go to Step 1 | - |
| 10 | Inspect the engine oil. Is the engine oil in the crankcase diluted or of the improper viscosity? |
- | Go to Step 11 | Go to Step 12 |
| 11 | Install new engine oil of the proper viscosity for the expected temperatures. Is the repair complete? |
- | Go to Step 1 | - |
| 12 | Inspect the oil pump. Is the pump worn or dirty? |
- | Go to Step 13 | Go to Step 14 |
| 13 | Replace the oil pump. Is the repair complete? |
- | Go to Step 1 | - |
| 14 | Inspect the oil filter. Is the oil filter plugged? |
- | Go to Step 15 | Go to Step 16 |
| 15 | Install a new oil filter. Is the repair complete? |
- | Go to Step 1 | - |
| 16 | Inspect the oil pickup screen. Is the oil pickup screen loose or plugged? |
- | Go to Step 17 | Go to Step 18 |
| 17 | Tighten or replace the oil pickup screen, as necessary. Is the repair complete? |
- | Go to Step 1 | - |
| 18 | Inspect the oil pickup tube. Are there any holes in the oil pickup tube? |
- | Go to Step 19 | Go to Step 20 |
| 19 | Replace the oil pickup tube. Is the repair complete? |
- | Go to Step 1 | - |
| 20 | Inspect the bearing clearances. Are the bearing clearances more than the specified values? |
Crankshaft 0.015 - 0.040 mm (0.00059 - 0.00157 in.) Connecting Rod 0.019 - 0.070 mm (0.0007 - 0.0027 in.) | Go to Step 21 | Go to Step 22 |
| 21 | Replace the bearing, if necessary. Is the repair complete? |
- | Go to Step 1 | - |
| 22 | Inspect the oil galleries. Are the oil galleries cracked, porous, or plugged? |
- | Go to Step 23 | Go to Step 24 |
| 23 | Repair or replace the engine block. Is the repair complete? |
- | Go to Step 1 | - |
| 24 | Inspect the gallery plugs. Are any of the gallery plugs missing or installed improperly? |
- | Go to Step 25 | Go to Step 26 |
| 25 | Install the plugs or repair, as necessary. Is the repair complete? |
- | Go to Step 1 | - |
| 26 | Inspect the camshaft. Is the camshaft worn or is there evidence of poor machining? |
- | Go to Step 27 | System OK |
| 27 | Replace the camshaft. Is the repair complete? |
- | Go to Step 1 | - |