One problem related to gas recirculation valve (egr valve) has been reported for the 2003 Acura MDX. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2003 Acura MDX based on all problems reported for the 2003 MDX.
I warmed vehicle up and when I went to drive out of the drive it wouldn't go forward or backwards,but slowly it kicked in. I started down the road and it would go away then just stop right where I was. I would shut it off,then restart and it would go then stop dead in the road. Then it wouldn't go at all. I was on a sharp curve on a small hill and was almost hit twice by an 18 wheeler. I had to back down this hill on this curve and almost went over the embankment. I called my mechanic who came,and he tried to drive it doing the same as it did to me. Unfortunately he had to back ,it down a bigger hill into someone's driveway,and then it had to be towed. Prior to this I had not had one problem,but not a good day for this to happen it -9 degrees. I am trying to find out from Honda if others have had any problems like this. I was out in frigid temps for over 2 hours,and not only am I 65,but I am a severe diabetic. I live way out in the country and now have no transportation for emergencies,and I certainly can't have the car fixed,they are saying $3000-3500. Can you please give me any info,this can't be a first.