pmichel

Does anyone have a copy of this TSB? It says something about removing the ballast resistor for a noisy fuel pump on the 92-93 XJ.

Mine is a 93, 280k with the original pump and it's been noisy since the day I got it at 130k. Is the noise a big deal?

Radi

Date: Dec. 31, 1993

THIS BULLETIN SUPERSEDES TECHNICAL SERVICE BULLETIN NO. 14-14-93 Rev. A DATED DEC. 3, 1993 WHICH SHOULD BE REMOVED FROM YOUR FILES.

Models: 1992 - 1993 (XJ) Cherokee (YJ) Wrangler

symptoms:

Excessive fuel pump noise (whine). The noise is loudest when heard from the rear seat.

parts:

1 52018387 Fuel Pump Module (XJ)
1 52018390 Fuel Pump Module (YJ) 15 Gal.
1 52018391 Fuel Pump Module (YJ) 20 Gal.

repair:

This bulletin involves eliminating the fuel pump ballast resistor on XJ vehicles, and installing a new design fuel pump on XJi and YJ vehicles.

FOR XJ ONLY (YJ-Proceed to Step 3)

1. Disconnect the negative battery cable.

2. Locate the fuel pump ballast resistor bypass relay which is attached to the Power Distribution Center. Cut the 18 gauge dark blue wire at pin 5 of the relay and seal the harness end of the wire with electrical tape. This will eliminate the ballast resistor circuit to allow system voltage to the pump at all times.

FOR XJ & YJ

3. using the procedures outlined in the appropriate Service Manual, remove the existing fuel pump module and install the pump module listed above.



Notes:

POLICY: Reimbursable within the provisions of the warranty.

pmichel

Thanks Radi - I appreciate it.