Last post on Jun 10, 2010 at 5:28 AM
You are in the Honda CR-V
What is this discussion about?
Honda CR-V, Engine, SUV
#20 of 22 2007 CR-V Rough Idle
Apr 07, 2010 (7:09 pm)
Sorry, I can't help with any ideas as to why your engine is rough while shifting. My 2007 has about 29k miles and runs smoothly on the highway. However, it had a pretty rough idle when it was new and even three years later still has a somewhat rough idle. I have been told by our dealership that after about 40k miles these honda engines seem to quiet down. Seems a little long to me but it is better than when it was brand new. I have owned quite a few Honda's over the past 25 yrs and they all have a history of running better and getting better mileage after a few thousand miles. If it continues to run rough either keep bugging your dealer or take it to another mechanic who specializes in foreign cars. Sometimes they can find things the dealer can't. They would love to gain your business by being better than the local dealerships.
#21 of 22 Re: 2007 CR-V Rough Idle [stockman2]
Apr 20, 2010 (4:57 am)
I have an '05 CR-V EX, I just took mine to the stealership to ask about the rough idle that has come about within the last 5k miles. I sometimes experience dificulty starting as well as a rough idle when at a stop light with the A/C on. I can also feel a pulse in the power steering when you turn the wheel and part way and hold it. It is very slight but still there.
When I took it in and talked to the service advisor, he said that it appeared to be a malfunctioning Idle Air Control valve, he said that they can become "sticky" or "twitchy" and cause my exact symptoms. He said that when the valve becomes bad enough it could cause stalling at stoplights and may or may not set an engine light. He quoted me $400+ to replace it..Thank God, for Honda Care. Since he car is still in the shop, I will post a follow up when I get it back.
#22 of 22 Re: 2007 CR-V Rough Idle [stockman2]
Jun 10, 2010 (5:28 am)
I've found the vibration at idle is related to a resonance at a particular idle speed when the engine si loaded form the A/C compressor. If it could be reporgrammed to run just 100RPM's higher, the vibraton would go away.
that at elast what I found in my car. In all other conditions, there's no vibration.
On other note about vibration. In the winter, ice can build up around the lower engine mounts and around the pilot shaft if you drive through slush. It can make it really, really loud at low speeds. Once the ice melts or you knock the ice loose, it goes away completely.