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Fuel Pressure Specifications 4.0L Mazda B4000
| 1994-1995 | ||
|---|---|---|
| Engine | KOEO | KOER |
| 4.0L B4000 | 35-45 PSI | 30-45 PSI |
| 1996 | ||
|---|---|---|
| Engine | KOEO | KOER |
| 4.0L B4000 | 35-45 PSI | 35-40 PSI |
| 1997 | ||
|---|---|---|
| Engine | KOEO | KOER |
| 4.0L B4000 | 35-40 PSI | |
| 1998-2002 | ||
|---|---|---|
| Engine | KOEO | KOER |
| 4.0L B4000 | 55-72 PSI | |
| 2003-2009 | ||
|---|---|---|
| Engine | KOEO | KOER |
| 4.0L B4000 | 30-56 PSI | |
KOEO = Key On Engine Off.
KOER = Key On Engine Running.
You can find the fuel pressure test explained in a step-by-step manner here:
- How To Test The Fuel Pump (Ford 4.0L Aerostar, Ranger, Explorer) (at: troubleshootmyvehicle.com).
Where To Buy A Fuel Pressure Gauge
The following fuel pressure test kits have the Ford Schrader valve adapter you'll need to connect the fuel test gauge to the fuel injector rail.
The following tools ARE NOT cheap knock-off tools, but inexpensive known automotive brand tools you can count on giving a long service life.
More 4.0L Ford Ranger (Mazda B4000) Tutorials
You can find a complete list of 4.0L Ford Ranger (Mazda B4000) tutorials in this index:
Here's a small sample of the tutorials you'll find in the index:
- How To Test The Fuel Pump (1991-2011 Ford 4.0L Ranger And Mazda B4000).
- How To Test For A Blown Head Gasket (1991-2011 4.0L Ford Ranger And Mazda B4000).
- How To Test Engine Compression (1991-2011 4.0L Ford Ranger And Mazda B4000).
If this info saved the day, buy me a beer!
