Join Date: Oct 2006
Location: washington state
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Originally posted by The Green Hornet
My wife's new (one week old)07 Accord had the same kind of a knock upon start up first thing in the morning, but it did'nt happen the rest of the day.
I heard it and though something was loose in the engine, sounded like a hammer banging the engine. So for the last week I wanted to have something for the honda tech to hear, I would start the car every morning and "CLUNK" it never failed but after the engine ran for any length of time it would not do it again. As always no one heard it but me so I decided to let it go, until yesterday I tried something different, Get in and close the door, Turn the key to the Accessory position, turn off the radio and ac/heat if its on, you'll hear the fuel pump cycle a kind of a soft whirling sound, then turn the key to start the engine, to my surprise no clunk or thump. My neighbor thinks it might be in the clutch in the A/C or heating unit. Not being very skilled in "the way of the toolbox" I would'nt know the ac clutch from the thing-a- hickey. I'll get around to taking it in for a service check next week, but for now I haven't heard the noise.
Originally posted by gregbrookshire
I just bought a 2004 EXL with 60k miles on it. I hear a clunk once per trip, usually the first time I apply the brakes going forward - then it never happens again until perhaps the next time I go for a ride.
Mine is on the right side, maybe the front, but difficult to locate. It sounds and feels like it has something to do with the 4WD - differential locking, etc. I think it is in the drive train somewhere - best guess is the right front wheel area.
I'm waiting for a reply back from the previous owner to see if he knows what it is.
Originally posted by jon316
We narrowed it down to what the clunk is not: It is not the A/C. I had the ventilation off yesterday morning and the temperature in the garage was about 28 degrees. Got the clunk on start from overnight parking, from low on the driver's side of the engine compartment.
Got an entirely different clunk when I started the climate control.
For a new vehicle with fewer than 8K miles, it's a clunker.
The dealer replaced the radio parts and it's been a week and no popping noise!!
If you have the popping problem, contact your dealer because there is a current service bulletin from Honda posted about this issue.
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