is there a step by step guide for replacing heater core in 1999 concorde 2.7 eng

Step 1 walk to your favorite parts store, 2 look up your car in the manuals section 3 pay for the manual 4 read the manual 5 tow the car to your favorite shop

Autozone have some popular workshop manuals for free on line once you register (for free) on their website http://bit.ly/autozone_repair_info. There is a company that independent auto repair shops get their information from, this same information is available inexpensively for people that work on their own cars.. The information is year make and model specific, covering repair procedures, torque specifications, fluid capacities and specifications, service bulletins, component locations, wiring diagrams ect.... Alldata is very easy to navigate http://bit.ly/AllData_Repair_Manuals_Online Alldata is the best. It's 6 hours labor plus time to evacuate, store and recharge the air conditioning system afterward. Not something to be taken on at home without the tools and equipment.

I have to agree with others here. A Heater core replacement is not a job to be taken lightly. With a 6 hours labor estimate (and mind you that is for a professional mechanic will all tools at his disposal) it is quite a job and likely the entire dash will have to be removed from the vehicle. If you are a skilled mechanic or highly capable it is possible to replace it at home but I highly reccommend taking it to a trusted mechanic. The likely frustration and time committment associated with a repair of this magnitude attemptted at home is just not worth it.

if it is anything like the 3.2 and it is burried under the dash just get a haynes book..it will tell you pretty much step by step what to do..make sure you remeber what goes where though because it doesnt tell you every little detail