InFaMouSLink

iTrader: (10)

Hello all, Coming over from the Third Gen TL side... Buying my girl a 2004 Touring MDX with 130K miles... Started her up and had a CEL on... read the code and it read 300-306 which is misfires.... I asked the dealer what gas he used and he said 87... Tomorrow i will be putting in 2 gallons of 93 to the already almost empty tank to see if the code disappears... I also heard noise coming from the tensioner... Besides that, what hidden dangers are there in this year MDX??

Thanks.

Alex.

03tl-s04mdx

Pretty sure 87 gas isn't causing the misfires (the ECU should adjust for the lower octane) so even a tank full of 93 isn't going to fix them.

Any maintenance history on this MDX? I'm guessing it needs a valve adjustment and new plugs - the valve adjustment seems to be a much overlooked maintenance item (due at 105K) that causes a lot of random misfires on higher mileage MDXes. The tensioner noise lends me to believe it needs a timing belt/water pump replacement as well.

If there is no evidence of any of this being done just make sure to price it into your offer - could be $1000-$1500.

InFaMouSLink

iTrader: (10)

Already bought it. Timing belt WAS done thats probably why I now need a valve adjustment. ima check plug over the weekend. i still have to troubleshoot pulley.

PaulAWD

I have a 2004 with 198k on it. I had to replace all the brake pads and front rotors and I replaced a starter. The one pain in the ass problem we had was a failed gas tank. Something sticking inside caused gas filling issues and it had to be repalced. I did the 105k service w/ valve adjustment at the time and it's always ran great before and after. Acura makes a great SUV so good luck and congrats.