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Hi Eric and other beloved buddies! I just found out about the Ericthecarguy channel on youtube and it is AWESOME! It offers a lot of insights and gets me to knowing my car much more.
I have had this problem for quite some time. The car will start up fine in the morning (sometimes it will crank longer and struggle to start). After startup, of course, the RPM goes up to 1200 range. In Canada, winter is brutal. I guess this is normal because it needs to warm up. However, when it is in gear (R or D), especially when I press the brake pedal, you can feel that it idles rough. You can literally feel the car shaking. You can feel the vibration through the drive wheel. But all this will go away after 5 mins of driving and when the engine warms up.
My question is should I be concerned? Is this normal? I just bought the car half a year ago and it passed the 200 point inspection with all greens. I am a rookie when it comes to car. Any input will be greatly appreiciated. I also checked out Eric’s video for cleaning the cold idle control valve. But I can’t seem to find where it is located on my car. Please help and thank you!
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No this is not a normal start up condition.
The extra crank time is causing extra fuel to be sprayed
into the cylinders.causing the car to choke.
I would start with the ignition side.Hi College Man, thanks for your reply. How do you explain that the symptom goes away after couple mins when the engine warms up?
[quote=”college man” post=52764]No this is not a normal start up condition.
The extra crank time is causing extra fuel to be sprayed
into the cylinders.causing the car to choke.
I would start with the ignition side.There is no cold start valve on that model. They did away with those some time ago. Now they just use the idle control valve to modulate cold start idle.
It’s hard to say what the issue is for sure. Start with any CEL’s you might have. If you don’t have any then look to the simple things like your tune up items. BTW make sure you use Honda parts. Use NGK or Nippon Denso plugs only. In fact, I think that’s all there is to your ‘tune up’.
If you still have issues I’d ask what kind of oil you’re running. Make sure you’re using the correct viscosity as printed on the oil cap. You might consider running synthetic as that will flow better in colder temperatures. You might also consider a block heater.
With a problem like this you need to figure out if it’s a spark problem, a fuel problem, or a mechanical issue. You eliminate the possibilities one at a time till you find the problem.
Keep us posted.
Thank you for getting back to me! I really appreciate it. Btw, I like all your videos on youtube. Very informative, inspiring, and passionate.
I don’t have any CELs and the rough idle only started in the winter. When I bought the car in the summer, it didn’t occur to me that it idled rough at could start. Anyway, I will replace the spark plugs with NGK this thursday and keep you posted. I hope that it is not a vacuum leak or something else.
I brought the car to Honda for oil change about two months ago and they put 5W-20 in it while the cap says 5W-30. I then checked the service record from the previous owner. He brought it in to Acura and they put 5W-20 in it too so that didn’t bother me too much. I googled it and found other Honda owners experienced the same thing. I think that they changed the oil recommendation to 5W-20.
I have been putting Shell V-Power in and the previous owner said they had been putting premium. And not too long ago, I heard that the engine would ping while it accelerated from 10 – 45 mph but that didn’t bother me too too much so I ignored that. I wonder if it is related in any way. But, yeah thanks again. I will keep you posted! Cheers!
[quote=”EricTheCarGuy” post=54553]There is no cold start valve on that model. They did away with those some time ago. Now they just use the idle control valve to modulate cold start idle.
It’s hard to say what the issue is for sure. Start with any CEL’s you might have. If you don’t have any then look to the simple things like your tune up items. BTW make sure you use Honda parts. Use NGK or Nippon Denso plugs only. In fact, I think that’s all there is to your ‘tune up’.
If you still have issues I’d ask what kind of oil you’re running. Make sure you’re using the correct viscosity as printed on the oil cap. You might consider running synthetic as that will flow better in colder temperatures. You might also consider a block heater.
With a problem like this you need to figure out if it’s a spark problem, a fuel problem, or a mechanical issue. You eliminate the possibilities one at a time till you find the problem.
Keep us posted.[/quote]
So replaced the spark plugs with NGK Iridium couple days ago. Found that the OEM Denso were used in there so they were never changed. Idle smoothed out a bit. I don’t know whether that’s because the temperature these days warmed up a little or it’s the new spark plugs. However, the car is still vibrating in gear when it’s on cold idle. It is kind of frustrating to think that it may be within spec to have this vibration. I will clean the throttle body tomorrow and see if anything changes. Should I look for a vacuum leak after?
Pretty sure that your car has a “drive by wire” throttle body. Meaning it does not have a throttle cable and it is electrically operated. If you try cleaning your throttle body you will be creating other issues. Short answer, don’t clean the throttle body..
[quote=”fitone” post=55117]Pretty sure that your car has a “drive by wire” throttle body. Meaning it does not have a throttle cable and it is electrically operated. If you try cleaning your throttle body you will be creating other issues. Short answer, don’t clean the throttle body..[/quote]
Hi fitone, thanks for your advice. I will not clean the TB. However, what would you suggest me to do next??
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