This is coolant leaking from the heater core ?? big job i'm afraid ?
Removal & Installation (Front A/C-Heater System)
Disconnect negative battery cable. Drain radiator. Remove instrument panel. See INSTRUMENT PANEL . On 5.4L engines, remove junction block splash shield. Disconnect cable ends from starter relay. Remove junction block bracket.
On all engines, compress heater core hose holding tabs. Disconnect heater hoses at heater core. Remove A/C plenum demister adapter screw. Remove A/C plenum demister adapter. Disconnect vacuum line.
Remove 2 heater core bracket screws. Remove heater core bracket. Remove 13 screws from plenum assembly top. Remove plenum assembly top. Remove blend door assembly from case. Remove heater core. To install, reverse removal procedure. Tighten bolts to specification. See TORQUE SPECIFICATIONS .
Removal & Installation
Disable air bag system. See AIR BAG SYSTEM SAFETY article in GENERAL SERVICING. Move power seats rearward (if equipped). Move adjustable pedal to full forward position (if equipped). Release mounting tabs and position power distribution box aside. Remove 3 bolts and remove bulkhead electrical connectors in engine compartment.
From inside vehicle, remove bulkhead electrical connector insulator and unclip bulkhead electrical connectors from dash panel. Remove front center floor console (if equipped). See FRONT CENTER FLOOR CONSOLE . Remove lower steering column cover. Remove valance panel. Disconnect Restraint Control Module (RCM). Disconnect blend door harness connector. Disconnect climate control panel vacuum harness connector. Remove left and right sill plates. Remove left and right door opening scuff plates. Move left and right door weatherstrip seals aside. Remove left and right "A" pillar lower trim panels. Remove left and right side assist handles. Remove left and right windshield garnish moldings. Disconnect brakelight switch electrical connector.
Disconnect adjustable pedal motor harness connector (if equipped). Remove radio and Generic Electronic Module (GEM)/Central Timer Module (CTM) ground bolts. Disconnect left side main wiring harness and bulkhead connectors. Remove steering column opening cover reinforcement. Disconnect air bag sliding contact and anti-theft electrical connectors. Disconnect remaining harness connectors from steering column.
Disconnect transmission range indicator from steering column (if equipped). Remove steering column support nuts. Lower steering column. Remove 3 instrument panel attaching bolts through steering column opening. Remove instrument panel reinforcement bolt (below left corner of cigarette lighter). Disconnect inertia fuel shut-off switch harness connector. Remove right side ground bolt. Disconnect air suspension switch harness connector (if equipped).
Disconnect right side main wiring harness connectors. Disconnect blower motor harness connectors. Disconnect Electronic Automatic Temperature Control (EATC) hose from evaporator case (if equipped). Disconnect in-line antenna connector. Remove instrument panel relay cover. Disconnect autolamp sensor harness connector (if equipped). Disconnect sunload sensor harness connector (if equipped). Remove glove box.
Wearing safety glasses, disconnect passenger's side air bag module connector. Remove passenger's side air bag module screws. Remove passenger's side air bag module.
Remove instrument panel reinforcement bolt below and to left of glove box. Remove instrument panel bolts behind passenger's side air bag module opening. Remove instrument panel bolt on relay bracket. Loosen instrument floor brace bolts and nuts.
Remove left and right instrument panel cowl nuts. Remove instrument panel cowl top bolts. With an assistant, remove instrument panel. See Fig. 23 . To install, reverse removal procedure.
Tuesday, December 9th, 2008 AT 10:02 AM