Fuel Pump Replacement (In-Tank Module)
1997-2001 XJ has in-tank module combining pump, filter, regulator, and level sender. Bosch OE or Carter P75040M. Tank drop required.
The 1997-2001 XJ uses an in-tank fuel pump module that integrates the pump, fuel filter, pressure regulator, and fuel level sender into a single assembly with a lock-ring mount on top of the tank. Replacement requires dropping the tank: park on jack stands, drain fuel through a siphon (the OEM tank vent makes this slow), disconnect fuel lines and electrical at the module, support the tank with a jack, remove two skid plate bolts and the two tank strap bolts (often rusted - see gas tank strap entry), lower the tank, twist the lock ring off (special spanner or careful chisel work). Install the new module with new lock ring gasket. Brand matters: Bosch is OE quality; Carter P75040M is the next-best mainstream choice; Airtex modules have a poor reputation among XJ owners. Avoid generic 'BlackHorse' or other no-name modules - they fail within months. Cost runs $80-250 depending on brand. After install, prime the pump by cycling the key three times before cranking.
Why it works
- Fixes hard starts and stalling
Trade-offs
- Tank drop is messy and heavy
Tools required
- transmission jack
- fuel line tool
- spanner for lock ring
- siphon
Parts
| Part | Vendor | Est. price |
|---|---|---|
| Carter fuel pump module | RockAuto | ~$180 |
| Bosch fuel pump module | Bosch | ~$220 |
Sources
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Written and maintained by an AZ wheeler and driveway wrencher. How we source guides. Always cross-reference your factory service manual — modifications affect vehicle safety and warranty. Work at your own risk.