Hey Everyone...new here!

A week ago I purchased a used 2003 Blazer 4x4 LS with 74000 miles on it. I purchased off a dealer and it only had one owner but I know nothing else about the history of this truck. Paid 4K for it here in NJ.

I recently had the oil changed and will be having the breaks looked at tomorrow.

Today, the Service Engine Soon lightcame on and I ran it to Autozone and the device said something about a bad MAP and some other circuit problems. Is this a MAJOR problem? Is it hard to fix/replace yourself? Where is it located?

Also, being that I dont know the history of the truck, what else should I replace or have checked ASAP?

Thanks!
Dan

 

I got the code, its P0107

Where should I go from here? Replace the MAP sensor? Does anyone know where this is located on a 2003 Blazer?

Thanks

 

Your map sensor has to be on your intake manifold somewhere,I am not familiar with 2003 so I cant tell you where. Also I personally change all the fluids when I buy a used truck cause then you know they are all clean(except brake fluid,Too much of a pain in the butt)even your diff fluids and transfer case.