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Hi Eric/All, hoping someone has some insight, especially Eric being a Honda tech and Oddy owner.
Our ’02 Oddy LX, 107K miles, has had symptoms of a shudder at low speed. I did a tune-up last year and replaced a coil on teh #6 cylinder soon after. The van has had the trans recall work done back at the original annuncement time (’05/06?). This issue is very hard to reproduce and a code/check engine light/flashing “D” is not present. This occurs usualy at 15-20 MPH with slight throttle, the van will hesitate and shudder. In reading the many posts over at OddyClub.com others have similar situations with varying years. Some think it is the AT with some solenoids not working for 2nd to 3rd gear shift, others claim an EGR issue (many others have debunked this with the replacement and passage cleaning to no avail), and others have replaced the Idle Air Control with vaying success…but i beleive they had CELs for the IAC.
Wnated to know if anyone here had any ideas or if you, Eric, have had this in your Oddy and can offer some tips.
Thanks in Advance,
John
Ipswich, MA
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Hestitations are usually ignition related issues.
Did you use OEM replacement ignition components when you completed your tune up?
Plugs are NGKs, coil was aftermarket as the OE was simply too costly. I don’t belive that only the OEMs will work as others have used dealer OE parts and had the dealer perform the maintenance and still they still have the issue.
Other than this problem, the van runs fine, in all weather and when this occurs there isn’t a CEL, TCS or flashing D to indicate a management problem.That sounds like a classic EGR problem for that engine. Given that it’s an 02 there should be a removable plate on the top of the intake, remove that plate and inspect the ‘ant farm’ underneath, if it’s all clogged up with carbon and gunk clean it and the holes going into the intake out and recheck for the symptom. You don’t need to replace the gasket just be careful not to damage it.
There’s this and similar posts:
http://www.odyclub.com/forums/24-1999-2 … p0401.htmlAlso a fix and many similar posts within:
http://www.odyclub.com/forums/24-1999-2 … ifold.html
Plus Eric does a great vid on this which I posted to the other forum
What concerns me is I don’t have any CELs and such but I’ll pull the intake anyway to check what she’s lie. The video is for a ’99 but i think the premise is the same
Honda Service Bulleten 05-026 EGR valve contamination or EGR port clogging may or may not cause DTC P0401, P1491 or engine hesitation or surge.
On 2001 Odysseys after VIN 2HKRL18..1H586575, all 2002 Odysseys within the effected VIN ranges, EGR valve sticking is covered for 8 years or 80,000 miles wichever comes first.If DTC P0401 or P1491 is stored, or if the engine hesitate or surges, clean the EGR port, install an EGR pipe kit and clear the DTC,s
Pipe kit P/N 06175-P8F-A71, H/C 7374127
Quoted From David Zitterich:
Honda Service Bulleten 05-026 EGR valve contamination or EGR port clogging may or may not cause DTC P0401, P1491 or engine hesitation or surge.
On 2001 Odysseys after VIN 2HKRL18..1H586575, all 2002 Odysseys within the effected VIN ranges, EGR valve sticking is covered for 8 years or 80,000 miles wichever comes first.If DTC P0401 or P1491 is stored, or if the engine hesitate or surges, clean the EGR port, install an EGR pipe kit and clear the DTC,s
Pipe kit P/N 06175-P8F-A71, H/C 7374127
Thanks so much for the info!
Thanks for posting the TSB info David. In truth it takes some time before clogged EGR ports set a code in my experience. BTW the video that I posted does not apply to your engine as I stated in my last post you don’t have to remove the intake you just need to remove the plate on the top of the intake to verify this problem. Good luck and keep us posted.
All, removed the top plate to expose the ant farm and, as Eric suggested, they were caked with carbon and the holes were restricted, one was worse than the others. Cleaned the underplate pathways, the holes on the plate, gasket and intake with carb cleaner and reassembled. Seems to ru a bit better but I wont know until the wife drive shte van daily. I’ll keep everyone posted.
One oddity: under the plate sitting on top of the intake were puddles of water, just wondering is this is condensation not escaping or if it is to be escaping through these passages which were clogged.
John
The condensation is perfectly normal and in fact the cause of the problem. As the hot exhaust gas passes near the cool intake manifold water from the combustion process will condensate and collect inside of the passages bringing with it the ‘hard carbon’ deposits. Over time these deposits will build up and cause the restrictions that you found. Keep us posted on if that fixed the problem or not.
OK Gents, I went back in and removed the entire intake to clean the main port like in Eric’s video. The port didn’t have then sleeve in it and though back with carbon, wasn’t blocked. I cleaned it anyway and sprayed directly down the 6 port holes that feed the “ant farm”. The final verdict is this worked. The wife drove it for the week and said it doesn’t do it (as much), I notice that the van is quicker and smoother on acceleration.
Thanks for all the help, and as always, I’ll stay dirty
John
Thanks for the update!
Dont forget to change the traffic light to ‘Green’ if the problem is resolved so someone with the similar issue can easily search for this thread C8-)
Quoted From jmmctighe:
OK Gents, I went back in and removed the entire intake to clean the main port like in Eric’s video. The port didn’t have then sleeve in it and though back with carbon, wasn’t blocked. I cleaned it anyway and sprayed directly down the 6 port holes that feed the “ant farm”. The final verdict is this worked. The wife drove it for the week and said it doesn’t do it (as much), I notice that the van is quicker and smoother on acceleration.
Thanks for all the help, and as always, I’ll stay dirty
John
Next time just remove the upper plate as that is all that is required, it’s the small passages that clog up under that plate NOT the big passage in the lower intake. I’m sure you’ll be doing it again in about 70K. Thanks for posting your fix and for using the ETCG forum.
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