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Re: dodge ram 2500 1999 heter core need to be reaplace
I have a 2000 1500, but from what I can see it is the same fix. You need to pull dash forward. 2 bolts behind kick panels one on either side. Screws along top windshield I believe there are 6. Detach steering shaft. (lay down on drivers side facing up. 2 bolts hold in place) This should allow entire dash to tilt towards seats. Heater core is passenger side. You will see 2 metal lines going through firewall. This is your heater core lines. Detach these from rubber hoses inside engine compartment.
Here's where you can follow the book, or do it the easy way... The book says you need to remove the ENTIRE dash and discharge A/C unit before removing.... I have a way better fix.
With a hacksaw cut the metal lines off the top of the heater core (its already junk so don't worry). Pull up on heater core to remove. Now the tricky part. With the hacksaw, cut through the plastic housing. Start far right and cut down until you meet the natural break in the 2 pieces of plastic. Now start another cut on the far left of the housing and again cut straight down. You are creating a door for the new heater core to install. ***Save this piece of plastic housing as you will need it***.
Install new heater core and then use JB Weld to fasten "door" back into place. This should save you about $300 and hours of time. Have fun...
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If it is necessary to remove the heater assembly, the cooling system must be drained before removing the heater core.
When a heater core leaks, a new heater core is installed or the old one repaired. Heater Housing
The heater housing is usually under the dash and must be removed to gain access to the heater core.
Procedures for replacing the heater core vary with the year, make, and model of car. It threfore necessary to consult the manufacturer's repair manuals for the proper procedure for replacement.
The heater housing is disassembled to get to the heater core.
Remove the access panels(s) or the split heater/air conditioning case to gain acess to the heater core.
Remove the heater coolant hoses.
Remove the cable and/or vacuum control lines (if equipped).
Remove the heater core securing brackets and/or clamps.
Lift the core from the case. Do not use force. Take care not to damage the fins of the heater core when removing.
To reinstall the heater core, reverse the removal steps.
When the heater core leaks and must be repaired or replaced, it is a very difficult and time-consuming job primarily because of the core's location deep within the firewall of the car. For this reason always leak test a replacement heater core before installation.
dodge want $800 to$1000 for doing this and I can see why.You have to raise or remove the whole dash recover you a/c freon ,disconect your a/c lines and heater hoses remove your heater box and put on a work bench remove the top and remove heater core,now next the last one I did the new heater core will not fit you have to modify the box so your new heater core will fit,put it all back together and fill with coolant and charge a/c, man I got tirered just typing this much less doing it, I hope this helps