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  #1  
Old 12-24-2009, 11:13 PM
js250 js250 is offline
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Default few questions

how hard is it to change the heater core on a 99? and would i need an alternator if when my hearter kicks on and off and it pulls from my batter i can see my gauge go down thank
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  #2  
Old 12-25-2009, 01:33 AM
2008RangerXL 2008RangerXL is offline
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Not too sure...i know the heater core was a BITCH to do in my buddys 98 Explorer...different engine..sounds like you will need an alternator..if it cant charge the battery fast enough to keep up with the heater..
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  #3  
Old 12-25-2009, 08:45 AM
js250 js250 is offline
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yeah it only does it when the compresser kicks on and off. and thats what i was thinking what i will propbley take the front seats out to have more room how hard is the belt to get off and i might replace it also.
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  #4  
Old 12-25-2009, 05:13 PM
2008RangerXL 2008RangerXL is offline
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the belt isnt too terrible to take off...
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  #5  
Old 12-25-2009, 07:03 PM
js250 js250 is offline
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ok thanks.. for the help.. STL where are you at to give me instruction lol. your the life saver
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  #6  
Old 12-25-2009, 07:23 PM
Yrac Yrac is offline
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js250 give us some info on your ride. I can pull info right off a manual for you!
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'88 STX Super Cab 4x4
2.9 5spd 180,000 miles
Crappy Paint, Worn Parts,
Fix'em as they Break
when Nowhere is Now Here
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  #7  
Old 12-25-2009, 09:46 PM
js250 js250 is offline
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1999 2wd 2.5l 4cyl 5 spd manual 130K
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  #8  
Old 12-26-2009, 12:01 PM
Yrac Yrac is offline
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Good news, bad news...Good, heater core is easy. Bad, removing the dash and evaporator (a/c) core to GET to the heater core. I can line you out with the manual's insruction, as follows, starting with instrument panel....(THIS IS ONLY THE INSTRUMENT PANEL, post too big...)
CAUTION
If electronic modules are exposed to static electrical charges, damage may occur.
Depower the supplemental restraint system (SRS).
Lock the steering column then remove the front seats.
Remove the screws and position the parking brake release handle aside.
Remove the front door scuff plates.
Remove the left-hand and right-hand lower cowl kick panels and the pin-type retainer.
Remove the screws and position the hood release handle aside.
Remove the instrument panel steering column cover.
Remove the instrument panel steering column opening cover reinforcement and bolts.
Disconnect the electrical connector for the brake pedal position (BPP) switch.
If present, disconnect the electrical connector for the clutch pedal position (CPP) switch.
If present, disconnect the shift cable from the steering column shift tube lever then disconnect the shift cable from the steering column bracket.
Disconnect the upper intermediate steering shaft from the steering column shaft and remove the pinch bolt.
Remove the left-hand and right-hand windshield side garnish moldings by first removing the bolts and the assist handle.
Remove the door moldings.
Disconnect the electrical connectors and the ground wire from the right-hand side lower kick panel.
CAUTION
Make sure the release tab is completely depressed before pulling the release lever into the disconnect position. This will avoid causing damage to the bulkhead electrical connectors.
Disconnect the left-hand side electrical connector for the bulkhead.
Remove the audio unit using the radio removing tool (T87P-19061-A).
Disconnect the electrical connector for the audio unit and the antenna cable.
Press the release tabs inward while lowering the glove compartment.
Through the glove compartment opening, disconnect the blend door actuator electrical connector and the climate control vacuum harness connector.
Press the release tabs inward while raising the glove compartment.
Remove the instrument panel defroster opening grille.
Remove the instrument panel cowl top bolts.
If present, remove the floor console.
On early-build vehicles ONLY: If no high-series floor console is present, remove the cup holders, then release the clips and remove the restraints control module (RCM) cover.
On late-build vehicles ONLY: If no high-series floor console is present, remove the consolette mat, then remove the screws and the RCM cover. Next, remove the consolette base.
On vehicles with manual transmission ONLY: Remove the gearshift lever and the manual transmission consolette.
Disconnect the electrical connector for the RCM.
Pull back the floor carpeting.
Disconnect the instrument panel main harness.
Remove the instrument panel side finish panel.
Disconnect the electrical connector for the door harness.
Remove the right-hand side instrument panel bolt.
Remove the left-hand instrument panel cowl side bolts.
Using two technicians, position the instrument panel in such a way as to get access to the electrical connector for the door harness.
Disconnect the electrical connector for the door harness.
Using two technicians, remove the instrument panel.
To Install:
CAUTION If electronic modules are exposed to static electrical charges, damage may occur.
Using two technicians, connect the electrical connector for the door harness, and then install the instrument panel.
Install the left-hand instrument panel cowl side bolts.
Install the right-hand side instrument panel bolt. Torque to 22 ft-lb (30 Nm).
Connect the electrical connector for the door harness.
Install the instrument panel side finish panel.
Connect the instrument panel main harness.
Put back the floor carpeting.
Connect the electrical connector for the RCM.
On vehicles with manual transmission ONLY: Install the gearshift lever and the manual transmission consolette.
On late-build vehicles ONLY: If no high-series floor console is present, install the consolette base, the RCM cover and screws, and the consolette mat.
On early-build vehicles ONLY: If no high-series floor console is present, install the RCM cover, put the clips on, and install the cup holders.
If present, install the floor console.
Install the instrument panel cowl top bolts. Torque to 22 ft-lb (30 Nm).
Install the instrument panel defroster opening grille.
Press the release tabs inward while lowering the glove compartment.
Through the glove compartment opening, connect the blend door actuator electrical connector and the climate control vacuum harness connector.
Press the release tabs inward while raising the glove compartment.
Connect the electrical connector for the audio unit and the antenna cable.
Install the audio unit.
Connect the left-hand side electrical connector for the bulkhead.
Connect the electrical connectors and the ground wire to the right-hand side lower kick panel.
Install the door moldings.
Install the left-hand and right-hand windshield side garnish moldings.
Connect the upper intermediate steering shaft to the steering column shaft and install the pinch bolt. Torque to 22 ft-lb (30 Nm).
If present, connect the shift cable to the steering column bracket then connect the shift cable to the steering column shift tube lever.
If present, connect the electrical connector for the clutch pedal position (CPP) switch.
Connect the electrical connector for the brake pedal position (BPP) switch.
Install the instrument panel steering column opening cover reinforcement and bolts. Torque to 8 ft-lb (11 Nm).
Install the instrument panel steering column cover.
Correctly position the hood release handle and install the screws.
Install the left-hand and right-hand lower cowl kick panels and the pin-type retainer.
Install the front door scuff plates.
Correctly position the parking brake release handle and install the screws.
Install the front seats then unlock the steering column.
Repower the SRS.
Evaporator Core........NEXT POST!
__________________
'88 STX Super Cab 4x4
2.9 5spd 180,000 miles
Crappy Paint, Worn Parts,
Fix'em as they Break
when Nowhere is Now Here
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  #9  
Old 12-26-2009, 12:03 PM
Yrac Yrac is offline
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Join Date: May 2009
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Default Evaporator Core

To Remove: CAUTION
Only refrigerant compressor oil (mineral oil) (F73Z-19577-AA/Motorcraft YN-9-A) should be used to lubricate R-134a refrigerant system O-ring seals and it should not be added to the R-134a refrigerant system as an A/C compressor lubricant. Only PAG refrigerant compressor oil F7AZ-19589-DA/Motorcraft YN-12-C) or an equivalent meeting the manufacturer’s specifications should be used as an A/C compressor lubricant.
NOTE: The evaporator core cannot be serviced separately. It can only be serviced with the evaporator core housing assembly.
NOTE: If you suspect an evaporator core leak, you must leak test the evaporator core before it is removed from the vehicle.
NOTE: When repairing the refrigerant system, it is not necessary to install a new suction accumulator unless there is evidence of system contamination from a failed A/C compressor or damage to the suction accumulator.
Drain the cooling system.
Recover the refrigerant.
Remove the air cleaner outlet pipe and the suction accumulator.
Remove the screws and nuts on the coolant reservoir and windshield washer reservoir, and then move them to the side.
On vehicles with speed control ONLY: Detach the speed control servo by disconnecting the electrical connector, removing the bolt, and then detaching the cable from the evaporator core housing. Move the speed control servo to the side.
Disconnect the electrical connectors for the blower motor and blower motor resistor.
Disconnect the heater hoses.
Detach the pin-type retainer and move the windshield washer hose to the side.
Disconnect and detach the heater control valve vacuum hose.
Disconnect the vacuum supply hose near the evaporator core housing.
Disconnect the condenser to evaporator line spring lock coupling from the evaporator core inlet and throw away the O-ring seals.
In the lower passenger side dash panel, inside the passenger compartment, disconnect the vacuum hose connector and remove the nut.
NOTE: Remove the splash shield electrical connector locators before removal.
NOTE: Disconnect the vacuum lines from the vacuum storage reservoir on the right-hand splash shield.
On vehicles with a 4.0L engine ONLY: Remove the wheel splash guard, if present. Next, remove the splash shield.
Remove the nuts and the evaporator core housing.
To Install: CAUTION
Make sure to lubricate the refrigerant system with clean PAG oil.
NOTE: If necessary, lubricate the coolant hoses with plain water only.
Install the evaporator core housing and nuts. Torque to 35 in-lb (4 Nm).
On vehicles with a 4.0L engine ONLY: Install the splash shield. Next, install the wheel splash guard, if present.
In the lower passenger side dash panel, inside the passenger compartment, connect the vacuum hose connector and install the nut.
Connect the condenser to evaporator line spring lock coupling to the evaporator core inlet with new O-ring seals lubricated with clean mineral oil.
Connect the vacuum supply hose near the evaporator core housing.
Connect and attach the heater control valve vacuum hose.
Correctly position the windshield washer hose then attach the pin-type retainer.
Connect the heater hoses.
Connect the electrical connectors for the blower motor and blower motor resistor.
On vehicles with speed control ONLY: Correctly position the speed control servo to the side then attach the speed control servo by attaching the cable to the evaporator core housing, installing the bolt, then connecting the electrical connector.
Install the screws and nuts on the coolant reservoir and windshield washer reservoir.
Install the air cleaner outlet pipe and the suction accumulator.
Refill the system with refrigerant.
Evacuate, leak test, and charge the refrigerant system.
NEXT POST...HEATER CORE!
__________________
'88 STX Super Cab 4x4
2.9 5spd 180,000 miles
Crappy Paint, Worn Parts,
Fix'em as they Break
when Nowhere is Now Here
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  #10  
Old 12-26-2009, 12:04 PM
Yrac Yrac is offline
diMwit
 
Join Date: May 2009
Posts: 341
Default Heater Core

To Remove:

NOTE: If you suspect a leak in the heater core, it must be leak tested before it is removed from the vehicle.

Remove the evaporator core housing and the instrument panel.
Drain the radiator.
Disconnect the heater hoses from the heater core.
Remove the nuts and the plenum chamber.
Remove the screws and heater core cover.
Remove the heater core.
To Install:

NOTE: In the installation procedure, install a new foam oval seal around the heater core outlet and inlet tubes.

NOTE: Use some Ford Rubber Suspension Insulator Lube (#E25Y-19553-A), or a suitable equivalent, to lubricate the hoses and fittings.

Install the heater core.
Install the heater core cover and screws.
Correctly position the plenum chamber then install the nuts onto the engine side of the dash panel.
Connect the heater hoses from the heater core.
Properly refill the radiator.
Install the instrument panel and the evaporator core housing
__________________
'88 STX Super Cab 4x4
2.9 5spd 180,000 miles
Crappy Paint, Worn Parts,
Fix'em as they Break
when Nowhere is Now Here
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  #11  
Old 12-26-2009, 02:28 PM
js250 js250 is offline
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Join Date: Nov 2009
Posts: 318
Default

well thats was alot to read lol.... thanks man i copy all of it down
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1999 2 wd4 cyl2.5l5 spd135k
MODS:5% tint all around Night Shades (Extra Dark)Corners Thrid BrakeTails Air silence removed 2006 Mirrors Flowmaster Super 44 (Weld on & Turn down)
35W 5000K Hids
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  #12  
Old 12-27-2009, 11:15 AM
Yrac Yrac is offline
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Join Date: May 2009
Posts: 341
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Copy and paste, man, copy and paste.
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'88 STX Super Cab 4x4
2.9 5spd 180,000 miles
Crappy Paint, Worn Parts,
Fix'em as they Break
when Nowhere is Now Here
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  #13  
Old 01-21-2010, 11:52 AM
smakes smakes is offline
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Join Date: Sep 2009
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Quote:
Originally Posted by js250 View Post
how hard is it to change the heater core on a 99? and would i need an alternator if when my heater kicks on and off and it pulls from my batter i can see my gauge go down thank
im now having the same problem on my 2.3, did changing the alternator fix it?
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