Park to reverse "clunk" - Honda Accord Forum - Honda Accord Enthusiast Forums

Go Back   Honda Accord Forum - Honda Accord Enthusiast Forums > General > General Tech Help

LinkBack Thread Tools Search this Thread
Old 03-13-2011, 10:15 PM
Newest Of Newbies
Join Date: Feb 2011
Posts: 16
Default Park to reverse "clunk"

My car is a 2002 Accord LX automatic shift with 135,000 miles.
Recently I have notice a “clunk” when I shift from park to reverse. It happens when
the car is cold. After driving for a while It seems to shift ok.
Some time ago I was changing the radiator and accidently lost about 6 or 7 quarts of fluid.
I had to replace the fluid with Castrol and drove it some 5 or 6 thousand miles.
I have just recently changed the Castrol transmission fluid with 6 quarts (2 changes)
of Honda ATF. The clunk is not getting any better, if anything it’s getting worst.
My question is: Am I facing an expensive repair bill or is there something I can do to fix
Or help the situation?
I have notice that the maintenance light on my dash comes and goes.from time to time.
Don’t know if that could be related.
Any suggestions would be greatly appreciated.
Reply With Quote
Old 03-13-2011, 10:26 PM
Join Date: Mar 2011
Location: Huntington Beach Ca.
Posts: 129
n/a n/a n/a n/a n/a
Send a message via AIM to Old Honda Dude
Default Read code(s)first

OBD 2 connector is under steering column. The code or codes should be read. Thats where any decent mechanic would start. Does it do it when on a driveway or street with an incline? Will it do it when the car is not positioned on an incline? TRY this: start engine, apply foot brake, shift to nuetral. while foot is still on brake shift to park. Foot still on brake , shift to reverse. Did it "clunk"?
Reply With Quote
Old 03-14-2011, 12:07 PM
Newest Of Newbies
Join Date: Feb 2011
Posts: 16

Got the code read today. P0401 too little flow on the EGR. I guess that’s another problem I’ll
Have to deal with.
I backed into the drive so the car would be in reverse position, because there is a slight slope to the
Drive. I could tell no difference in the shift. Tomorrow morning I will try shifting from park to
Neutral and back to park then reverse. I’ll let you know. Thanks for your help.
Reply With Quote
Old 03-15-2011, 01:18 PM
Newest Of Newbies
Join Date: Feb 2011
Posts: 16

Shifting to neutral and back didn't help. Only warming the car up by driving seems
to help.
Reply With Quote
Old 03-15-2011, 08:18 PM
Newest Of Newbies
Join Date: Mar 2011
Posts: 20

its front wheel drive check the linkage to see if it's hitting something i've had it happen
Reply With Quote
Old 03-16-2011, 10:36 PM
Newest Of Newbies
Join Date: Feb 2011
Posts: 11

Check the motors mounts as well. I don't know if 2000 accords had a learn function on the tranny shift points but it would be worth finding out. Could just need to be relearned.
Reply With Quote
Old 03-17-2011, 10:53 AM
JimBlake's Avatar
Super Moderator
Join Date: May 2006
Location: Ohio
Posts: 15,978

Some amount of trans "learning" started in 1998, so there is something there.

The rear engine mount (if it's 4-cyl) is vacuum-operated to get softer & harder. If that's screwed up & it's always in soft-mode, that might be part of the problem.
'05 Saab 9²x aero (RIP)
'09 Saab 9³ss
'10 Saab 9³sc
my kids have Civics
Reply With Quote
Old 03-17-2011, 11:57 AM
TexasHonda's Avatar
Super Moderator : And A Texan
Join Date: Feb 2007
Location: Katy, TX
Posts: 9,041

The rear mount could be the problem and it can completely fail (separation of rubber mount material).

When you shift to reverse the rear mount is lifted. If it's ruptured there may be clunk as the mount lifts and returns to position.

Also check the front mount carefully as they can rupture also.

good luck
See you down the ROW
1994 Accord EX
2003 Acura MDX
2006 Acura TSX
2010 Acura TSX
Reply With Quote
Old 04-10-2011, 12:41 AM
Join Date: Mar 2011
Posts: 7

The P0401 code is pretty common for engines of your year and mileage. The passage between the EGR valve and the intake plenum gets plugged with carbon over time. You have to remove the air breather, throttle body and intake plenum and then clean the passage out. Many others have written about it in the forums and you can probably find pictures. I've recently done it on four Accord V6s of the 1999-2001 vintage. Once you know what you're doing, it takes about an hour or hour and a half.

I'd like to hear what you find out about the cause of the "clunk". My 2001 Accord V6/Automatic with 142,000 miles has been doing this recently. A friend and I checked his 2000 Accord (V6/Automatic) engine mounts because the dealership gave him an unsolicited opinion that his front engine mount was bad. We also checked my engine mounts. Both checks were done following the diagnostic procedure in the official Honda manual. We specifically checked the front (the one near the radiator) and rear (near the firewall) mounts. These are vacuum controlled via a solenoid to reduce vibration at idle and engine speeds under 1000 rpm. Interestingly enough, our diagnostics indicated he has a bad rear mount (it would not hold vacuum), but his car doesn't "clunk". My car appears to have good mounts (they both held vacuum), but it "clunks". Perhaps the problem is related to the mounts under the transmission or the (transmission?) linkage as someone suggested. Please post what you find out...
Reply With Quote
Old 04-10-2011, 08:38 PM
Newest Of Newbies
Join Date: Feb 2011
Posts: 16

Thanks for the response. The clunk is most noticeable when the car is first cranked up in the mornings. It does not seem as bad now as it did when I first posted. The Honda dealer for our area is out of town, so I’ve been putting off going.
As stated after the first shift into reverse the car seems to shift ok most of the time. Lately I’ve notice some down shifting when not expected. Some times I can feel the shift not being as smooth as you would expect. 35 thousands miles or so ago I had a motor mount replaced but can’t remember which one. I had the car in on another matter and they said it needed to be replaced.
You know, when it happens it kind of reminds me of slack in a connection. I can’t afford repairs just now, so I have been holding my breath and hope nothing happens. When I take it in I will post the results.
Reply With Quote

Similar Threads
Thread Thread Starter Forum Replies Last Post
Clunk into reverse at cold start eepyikes General Tech Help 6 02-14-2014 06:00 AM
cold engine, loud "clunk" park to reverse oreo9935 General Tech Help 1 01-19-2013 12:58 PM
Clunk when shifting from reverse to drive katamoran General Tech Help 1 03-01-2012 11:45 PM
Loud Clunk When Shifting from Park to Reverse azamsharp General Tech Help 4 08-04-2011 04:33 PM
1993 Accord EX, Very difficult to shift from park to reverse. Locklear General Tech Help 3 07-07-2010 03:48 PM

2002, 97, accord, clunk, clunking, cold, honda, motor, mount, park, parkreverse, rear, reverse, reversing, shifted, shifting, switching, transmission

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


All times are GMT -5. The time now is 05:31 PM.

Honda and the Honda marquee are registered trademarks of the American Honda Motor Company, Inc. Neither American Honda Motor Company nor its subsidiaries or affiliates shall bear any responsibility for content, comments, or advertising. is not affiliated with American Honda Motor Company in any way. American Honda Motor Company does not sponsor, support, or endorse in any way. Copyright/trademark/sales mark infringements are not intended or implied.