'97 Accord runs rough at 2000 rpm

[atlaccord]

Hey folks. My '97 Accord runs rough (like it is slightly missing) at 2000 rpm. Under and over 2000 rpm it runs fine. The front motor mount was replaced a few weeks back (reduced the vibration slightly). I replaced the plugs, cap and rotor a few weeks back as well? The car has about 150k miles. Any ideas?

[mitcheal]

hey, i just had this same exact problem. Hopefully you ahve a different problem though. It turned out to be a rod bearing that was about to go. you can either have bearing replaced, have the whole engine rebuilt, or have a new engine put in. a new engine is actually new to you. it'll probably be pulled from a wrecked car. i had a friend do it for it for $1500, normally runs about $3000. if it vibrates while under load holding a constant 2000 rpm, then it's probably the bearing. for me it was hard to detect while reving to 2000 while sitting in a parking lot, i had to have a load on the engine. good luck.

[atlaccord]

Hey Mitcheal,

I hate to say it, but it is vibrating when a load is applied at 2000 rpm. This is the last thing I need. The transmission went out
this past summer - long story ($1900 to get that repalced). I guess
If I can find somebody to do the work for $1500 then I should be in
good shape for the next 150K..

[mitcheal]

well, the only way to be absolutely sure is to take the bottom end apart and take a look. if you're gonna go that far, then you might as well replace all the bearings. no point in having a new one and 3 old ones. and if you're going to replace all the bearing, some will argue that you might as well rebuild it, which will cost about as much as a new (used) engine. it's all preference and how much risk you want to take. who's to say that if you replace one bearing that a few months later antoher one won't die.