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01-20-2010, 06:00 PM | #1 |
Drives: 2007 Yaris Hatchback Join Date: Jan 2010
Location: Central Florida
Posts: 254
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Engine bogs at an idle
2007 with 5 speed and 80K miles.
I have noticed at an idle about once a minute it the RPM's will bog way down so I can feel the car shake. Most times I was running A/C and thought the compressor was the cause. I have had the same problem today with using my heater. Only maintenance done to car has been oil changes, air filter, Transmission fluid changed. What causes this? |
01-20-2010, 07:22 PM | #2 |
I love momentum.
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My 09 with 15k on it does the same thing occasionally. Not so much that it causes an issue, but the idle dips. From what I've read (and from past cars), it's not uncommon at all, especially with the AC running.
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01-20-2010, 07:49 PM | #3 |
Drives: 2007 Yaris Hatchback Join Date: Jan 2010
Location: Central Florida
Posts: 254
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OK, thanks. My last car was a V-6 so I am new to the economy cars
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01-20-2010, 08:13 PM | #4 |
Lurker supreme!
Drives: old and boosted! Join Date: Nov 2006
Location: Ottawa, ON, Canada
Posts: 792
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Mine does it too... always has... always when the A/C compressor turns on. Oh, and your A/C turns on by itself if you're using the defrost (even half defrost, half feet).
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2006 Red Blitzed RS 5-door |
01-20-2010, 08:24 PM | #5 | |
Drives: 2008 HB, A/T, Power W/L/M Join Date: Oct 2008
Location: LI, New Yawk
Posts: 2,063
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Quote:
I hate that feature....
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Never take eyes off opponent - Bruce Lee |
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01-21-2010, 09:32 AM | #6 |
Drives: no-longer-boosted '10 Yaris Join Date: Nov 2009
Location: Angus, Ontario
Posts: 1,891
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OOOOOOOOOOOHHHHHHHHHHHH, lol, thats what it is, lol. has anyone had the problem at idle (mine idles about 500-600RPM and randomly it will rev up to about 750-800 and hold for 30seconds and die back down? i only have 1,500km on it but its kinda random.
jsut a side note, i was looking at the engine to try and figure it out, as soon as the engine revs up the fan turns on, and as soon as the fan turns off the revs go down. i'm assuming this has something to do with alternator or a power issue?
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If it has boobs or wheels sooner or later your gonna have problems with it |
01-21-2010, 11:44 AM | #7 |
Audio Junky
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engine is trying to find the minimum rpm level that it can sustain without stalling... thats all it is. so your car is trying to lower the idle... but then shudders... and ups the rpms again... Not an issue unless your car start turning off when it does this.
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01-21-2010, 11:16 PM | #8 |
Drives: no-longer-boosted '10 Yaris Join Date: Nov 2009
Location: Angus, Ontario
Posts: 1,891
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has anyone noticed the fan turing on and idle jumps up till fan turns off? and i find the car can idle at about 550 no problem, not shaking too much or anything. but then the fan turns on, lol
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If it has boobs or wheels sooner or later your gonna have problems with it |
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