Diesel Engine
NOTE:
Before proceeding. Refer to Brakes - Warning
. See Brakes - Caution .
- Disconnect and isolate battery negative cable from battery post.
- Using a brake pedal holding tool as shown in illustration, depress the brake pedal past its first 25 mm (1 inch) of travel and hold it in this position. This will isolate the master cylinder from the brake hydraulic system and will not allow the brake fluid to drain out of the master cylinder reservoir while the lines are disconnected.
- Remove the engine appearance cover.
- Remove the air inlet tubing leading from the air cleaner to the turbocharger.
- Pull the brake tube bundle routing clips (with tubes) loose from studs on the dash panel.
- Remove primary (4) and secondary (1) brake tubes (from master cylinder) at hydraulic control unit (7).
- Remove remaining brake tubes (2, 3, 5, 6) at hydraulic control unit (7).
NOTE: Use this figure in the following step to release the ABM harness connector cover. It shows the location of the release tabs.
1 - ABM (PART OF ICU) 2 - WIRING HARNESS CONNECTOR - Disconnect the ABM harness connector from the Antilock Brake Module (ABM). To do so:
- Depress the tabs on each side of the connector cover, then
- Pull outward and upward on the lower half of the cover until it locks into position pointing straight outward (2). The connector can then be pulled straight outward off the ABM (1).
- Loosen, but do not remove, the two mounting screws (2) attaching the ICU (1) mounting bracket to the body.
- Lift the ICU and mounting bracket (1) off the mounting screws (2), then lower it down to the top of the front suspension crossmember and support it there.
- Raise and support the vehicle. Refer to Vehicle Quick Reference/Hoisting - Standard Procedure
- Remove the belly pan below the engine.
- Rotate the ICU (1) around behind the engine as necessary and remove the ICU through the opening between the axle half shaft and the steering gear heat shield.
- To separate the ABM from the HCU. See Brakes/Hydraulic/Mechanical/INTEGRATED CONTROL UNIT (ICU) - Disassembly .