transfer case needs replace. has 72,000 miles. i believe this case is part of drive train? warrantied?

running fine the quit.wounld,nt start took shop two days and counld.nt figure out what the prolem was.so they ran a new ground wire rrom fuel pump to new fuel relay,the car started and ran find,since then the check engine ligth stays on and saids ther a short in the fuel pump circuit,what could the proplem be?p.s. car has new pump and a new relay for fuel pump,they cut the ground wire from fuel punp and ran a new wire to the ground o th enew pump relay,has ew fuel filter.nobody seems to know what the problem is seening as the ligth is on still,the car runs but has a intermintent miss which it never had before,anybody have any suggestion?

also water in the floor behind it. I dryed it buy after going out and come back home, its more water in the floor.

any ideas?

The window goes down but wont go up

Is there something else i can try if the fuel pump goes in the tank frist ?

the car started running rough at about 46mph, mechanic found a cracked spark plug and put in new ones. 3 weeks later, same symptoms..running fine until about 46mph and then real rough and then smooths out. curious about costs

nothing wrong with the stock cover,I got a chrome cover & chrome bolts for xmas

It's always worked. I took the car to the dealer for air conditioning work, and now they're telling me the ECM needs to be replaced at my expense. I'm skeptical.

When driving to work this morning, the "!" came on and stayed on for 5 minutes, lasting the duration of my morning commute. What does this mean? It was cold, and I didn't give my car time to warm up.

I'm looking at purchasing this car from Carmax and have an appt this afternoon at the Mazda dealership for a complete car inspection.

All the other power seat functions work except the up and down feature on the driver and passenger seat.

In addition when first started there is no power brake assist. I have to rev the engine to get the vacum to build. The engine seems to run fine above 1500 rpm and drives fine on the highway.
Suggestions to repair?

bad warm-up converter will it lead to insufficient flow to the egr system/dtc P401-403

replace catalytic converter

There are some small details like certain buttons I have no clue as to what they are for ?