Hi all, I have a 2010 Acura MDX that has been having 4 different problems for the last 3 years.
One set of problems relate to overheating. This started with dried coolant I found all over my engine area and radiator. My engine started overheating after that and I had to top up coolant every week. I took it to a mechanic who replaced the radiator, hoses, thermostat, water pump and timing belt. The overheating continued to happen. I panicked and poured stop leak and that greatly helped although I still needed to top up coolant every month or so. I have tried to burp the system several times but the air is never fully gone from the cooling system. A year ago the heat stopped working in the left side of the car. It partially works on the passenger side. However, cooling did work both side this past summer, although not ice cold. I also hear a whooshing noise whenever I accelerate first time in the day. Are these symptoms of a head gasket leak? I saw a post by Honda blackbird that said it might be.
I have a P0305 code engine cylinder 5 misfire. This makes my car drive rough and I fix it temporarily by clearing the code and the car runs fine again until the next time the code appears. I’m guessing i caused this when I changed the spark plugs in my car and one of them got stuck and I was never able to remove it. Could this be causing the misfire?
Another problem with the car is I have to manually turn my AC on and off. The AC will not turn on or off with ignition. This problem started after I took my car to AAMCO for a transmission electrical issue for which they said they changed the computer and that fixed the engine running hard problem. AAMCO refused to look at my car afterwards when I told them they didn’t fix my problem completely. Could this be a simple relay problem?
My low battery warning perennially appears during winter. I have checked for parasitic drain and there doesn’t seem to be any. I do have an aftermarket radio but there is no parasitic drain from it. I have replaced 2 batteries in the past 3 years and the problem always reappears. The good thing is that the battery hasn’t died and always starts the car so far. I’m careful not to let #3 above cause the battery drain.
I know I have a suite of problems and would appreciate if someone took the time to help. I’m not sure if any of my problems are related.