I'm not a mechnic but I want to replace a heater core on a 93 chevy s-10. its this a tough job. thanks

Entire dashboard has to be removed. Ac system may have to be discharged in order to replace heater core. Probably a 10 to 12 hour job.

Remove the dash, remove all fasteners and seperate the heater core housing, remove the core. Install in reverse order. Its a tough job for a novice, i suggest let a shop do it.

its a tough job because it is located behind the dashboard in the car so the dash and and everything blocking the heater core will have to come out once you get to it its an easy replacement

This job is very fragile and you can damage hard to get parts. I suggest letting a qualified shop do this job. If you insist, what you do is open the heater box and extract the core. Fairly tough job.

unfortunitly your heat core is probably bad. tough job on any vehicle

changing the heater core in this vehicle is a long and annoying task. I just went through it. You will need to remove the entire dash board in order to access the heater core.Once you have removed the dashboard it isn't that tough. Try to cover the floorboards with plastic or something so coolant doesn't soak into your carpet. Remove the screws holding the heater core to the fire wall, disconnect the intake and return lines in the engine compartment and remove the heater core. Afetr you have removed the old core installing the new one should be easy. Dealerships will tell you that this is an 8 hr job and they will want $500 or more for labor but you can do it in 4 - 5 hrs. A new heatercore will cost around $50. Don't forget to have antifeeze on hand as you will lose some.

heater core under dash passenger side . Remove 2 hoses on fire wall carefully then take cover off the heater box & remove heater core. be careful not always an easy job!

Have replaced my heater core in my 2001 regular cab 4wd in december 2009. Had to pull the complete dash including the complete metal dash behind the dash that you see. Also had to remove the right passenger side inner fender well to acess the remaining two bolts that hold the heater core cover to the firewall. Its an insane job to do but the repair shop books call for 9 1/2 hrs to do the job. I'm not an expert but this is what it takes.

You will have to remove the entire dash assembly and then remove the air conditioning/heater case and this will enable you to have access replace the heater core, this is a really tough job did it 3 or 4 times while working at a Ford dealer, took 10 hours and I had allot of experience, unless you have allot of tech savvy I would pay someone to do it, I would, and I am a Professional mechanic.

sounds like heater core to me that is a big job you have to dissassemble the dash almost completly to remove heater a/c case to replace heater core a job not for the faint of heart