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Re: heater core needs replacement
Around 2 hours or $200 for labor, here is the procedure to do it yourself.
Remove battery cables. you have to remove the upper dash pad on this paticular year model. with a 10 mm socket and a 1/2 inch extension remove the 5 retaining bolts. remove the blower assembly under the passenger side of dash. remove passenger side seat and center counsole. drain radiator. disconnect hoses from now exposed heater core. turn it 180 degrees and slide out. Replace in reverse order.
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Probably needs a heater core replacement. Check and make sure your coolant level is good. There are two hoses that enter the passenger side firewall. With the engine at operating temperature feel both hoses. If both are about the same temo the core is fine. If one is hot and the other is cool then heater core is clogged and will need to be flushed or replaced. Replacement is very expensive on most vehicles. The part is usually cheap...around $50...the labor is high. The entire dash board of the car has to be removed to replace the heater core. Most vehicles take around 10 hours of labor time to do.
It will require several hours of labor just to get into the heater core. Its not so much the heater core replacement, its taking most if not all of the panels underneath the passenger side underneath the dashboard. Dpending on your car model, it may also require you to remove the glove box just to have access to the heater core.
In rare cases you have to remove the whole top dash board but most cars in general only require to remove panels underneath the dashboard on the passenger side. It's tricky to remove the heater core because it is well hidden behind many panels, a whole lot of screws to remove. Then you have to remove or cut the heater hoses in front of the engine compartment as those hoses are attached to the heater core.
I just replace the heater core in my old buick and it took some effort to undo all those panels and hoses and screws but i finally got it all done and heater works perfect. That repair at a automovtive repair shop would of cost me 350 to 400 dollars. I just spent 35.00 bucks for the heater core and another 12.00 bucks for new heater hoses and that was it, that and the intense labor involved to remove the old heater core. But i saved a huge bundle by doing it by my self, good luck.
This is a major job. Accessing the HVAC module where the heater core resides requires discharging the A/C system, removing the dashboard, steering column, and heater box. The labor is just over 6 hours. Add in the cost of coolant and refrigerant and you've got a big bill coming....and unfortunately, one that most DIYers can't take on by themselves. Labor rates run $80.00 - $100.00 hour depending on shop. Some services can be packaged to save money, such as the recover-recharge A/C system, drain/refill cooling system. Be careful, however, because shops use a industy-standard book rate for these jobs to determine hours to charge. The hours listed for this job should include the coolant drain/refill and A/C discharge/recharge labor if they are required. If the shop offers you package prices, ensure that they are adjusting labor time for the core R/R and not double-billing you on the labor for those package items.
Robert, Using a cooling system pressure test tool to pressurize the entire cooling system, a heater core will leak into the HVAC [heater, ventilation and air conditioning] box [located under the dash board]. Once coolant leaks into this box, it will either drop onto the carpeting on the passenger side front floor OR drip out the condensate tube [where the A/C condensate water leaks out under the truck] The condensate tube is a rubber pipe located on the lower end of the passenger side firewall. Leakage into the passenger carpet [most common place for it to leak] will appear as a wet carpet. If heater core replacement is required, do yourself a favor. Buy and install a new A/C evaporator [located in the HVAC box with the heater core] at the same time. This is a big job to do. No sense replacing the heater core now, only to have the A/C evaporator fail next summer, forcing you to repeat all that labor [8 hours for a pro mechanic who knows what he is doing].
The labor time to replace the heater core is 5.5 hours if equipped with a center console, and 5.0 hours without. Multiply this by the shops hourly rate and you have the labor time. Ex: 5.0 x $100.00 per hr. = $500 labor plus parts. The heater core will be approx. $100.00 (Ford # F80Z-18476-AA) and coolant will be approx. $25.00. Labor times will vary depending on the labor book but should not vary by more than 1/2 hour. Sometimes a coolant flush and thermostat replacement may be recommended. Flushing can run $100 and a thermostat should cost no more than $25.00 plus .8 hours.
As far as shortcuts, the dash does have to be removed but could be partially pulled back. This should be done by an experienced person since costly damage could occur. Good luck.
Most Jeeps require removal of the dash board to accomlish a heater core replacement. It isn,t really hard to do, but is a hundred times more difficult if you don't have access to A/C evac/recharge equipment. The service manuals give step-by-step instructions, usually with pictures, on how to do this. If you want GOOD, RELIABLE information on your particuler model, you can purchase a one year, single vehicle subscription of AllData for $26.95. Click the link below to go to AllData.
Hello m_howard. This is a classic case of a leaking heater core. Coolant is leaking out and being blown up on your windshield and the vapors inside the car. Unfortunately it will need to be replaced. A heater core will be about $80.00 and about 6 to 7 hours labor to replace according to the time/labor guide.More time may be required if your Marquis has air conditioning. May be a good idea to get a couple of estimates first. If you have more questions, leave a comment and I will reply.