I've noticed this as well with my 2000W Accord.It's almost as if the car is running on three and a half cylinders. It happens when the aircon is off and seems to be morve prevalent at low to moderate speeds (up to 30mph or so). Could it be something to do with the fuel or air system?
Andy
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Sounds like the car is suddenly pulling charge, which increases resistance, and thus gives you the blip.
Idling along, in traffic, with heater/rear window/radio/lights etc does this to my car.
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I popped into the dealer this morning and had a word about it, the first thing they asked was if it was when the air-con was on, but it's just with the normal fan on (I'm not a fan of air-con at all).
That "three and a half cylinders" description is uncanny, 'cause, as unscientific as it is, that's the sort of thing that was going through my mind.
Now that I'm paying attention to it, I've noticed it when going downhill using the gears to maintain speed (especially in third), there's a small "surge" occasioanlly, like you just tapped the accelerator the tiniest little bit. (As an aside, it never fails to amaze me how some people will go down a 1 mile hill with their brake lights on practically the whole way - how long do their pads and discs last?....).
The guy I spoke to at the dealer did seem to know his stuff, and was very helpful (so they've gone back up in my estimation a bit now), it's going in next week anyway for a door rattle and a subwoofer that doesn't appear to do anything so he's added it to the list, and said he would check it over. (Anyone else got an Accord SE Exec with the factory fitted extra power amp and sub and found that the sub makes next to no noise at all?).
Like you Andy P, I only notice it at low speeds in 2nd or 3rd, usually 3rd - and was wondering if it was something to do with the fuel injection system or some electronic gubbins. I dunno, sometimes I think I was better off with an '88 Cavalier when I could just pick up a Haynes manual and bodge around myself......
Alex.
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Strange as it may seem, my last car was a '95 Cavalier, and I found the Haynes manual to be almost indispensible. As for your other problems, the door rattle, if it's like mine, is from the door locking mechanism. Apparently, there are plastic sleeves that can be fitted to cure it.
Andy
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Alex,
You may have a specific fault that Honda will find but.....
I test drive a good selection of customer's cars over the year, mostly middle range saloons/hatchbacks and many diesels.
One thing that comes out of this experience is that the diesel cars drive in a very consistant way. On the other hand the petrol cars, even if without specific faults, often have their own little glitches in the way their ECUs control the power.
This has been discussed in the forum over a variety of headings but I think the overall impression is these traits often have to be lived with. It's the price we pay for very efficient and clean running engines.
Furthermore there was a fair discussion about aftermarket "chipping" and the conclusion seemed to be that the car makers were designing an ECU power curve to give impressive fuel consumption figures under Gov tests, but perhaps not best for driveability.
David
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Just read through the replies a bit more carefully, are you saying that just having the climate control on (not air con) is enough to cause the blip?
I don't know how it regulates the temp, would it turn the whole heating system on and off? Would that be enough to cause the blip?
Alex.
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