Your dealer is basically correct. A consistent, persistent knocking noise indicates worn crank and/or rod bearings. Did you run the van without oil or while low on oil or with the oil pressure light on?

If you plan to keep the van, I would shop around independent shops that specialize in imports or Hondas and price out having a short-block installed. You may run across a shop that will be willing to install a crank kit, which would include a new/remanned crank, main bearings, and rod bearings. It's possible that the new crank and bearings could be installed without removing the engine. I haven't done one on an Odyssey, so I don't know for sure. I have done crank kits on motors that are still in the vehicle.

As a very short term fix, you could try a heavy-weight oil, like 20w-50 or even straight 50 weight and see if it quiets down. This is by no means a long-term solution.

 

rabbitxstyle:

What year is your Ody?

Check out TSB 08-071 "Engine Pings During Moderate to Heavy Acceleration" in the 2007 or 2008 TSB threads below and see if it applies to your Ody.

http://www.odyclub.com/forums/52-20...ms/52-2005-2010-odyssey/46072-2007-odyssey-technical-service-bulletins-tsb.html

http://www.odyclub.com/forums/52-20...ms/52-2005-2010-odyssey/46024-2008-odyssey-technical-service-bulletins-tsb.html

 

Any more information about the Odyssey? Year? Milage?

 

my ody is 07 and it has 101,000.. i bought it used.. and the damn small dealership said its not there issue because it been over a yr.

 

i have also checked the TSB and my VIN is not on there.

anyone have any advice?
please help..

 

You stated you have a 2007 Ody and the TSB covers all 2007 Odys, so your Ody applies.

The knock sensor for your 2007 ody is 30530-P8F-A01 and it costs $26.73 at Bernardiparts.com. The TSB lists a flat rate time for labor at 1.5 hours.

I would investigate the diagnosis and replacement of the sensor before spending $$$ on a new engine or engine repair.

 

well i took it to a buddy shop and its not the knocking sensor.. he told me the same thing that the motor will need to be replaced and its the rod bearing that would cost about 4500... does that sound right to anyone?

 

Like I said earlier, I think you may have 4 options:

1. Replace crank and bearings with motor in the van. Not sure if this can be done given space limitations. Most shops will probably not want to do this because replacing the engine is just less hassle for them in the long run.

2. Replace the short block, which means re-using the heads and intake system.

3. Replace the long block, which means new heads but reuse intake system.

4. Salvage motor.

The price is the price. Shop around for the best value. Factor in time to complete, warranty on parts and labor, and what you are getting. If you plan to keep the van a long time, go with a quality, manufactured long block. If you had plans to trade in, try thick oil and a can of STP (if they still make that stuff) and see if the knock goes quiet.

I would probably do the crank kit myself and if I did it myself, it would probably cost <$1,000 in machining and parts.

 

thx shall36.. well i want to trade it in... how thick of a oil should i use? also i just went to the dealers and they wanted $3000 for the Van as-is..

 

I'd try 20w-50. You should notice some improvement.