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95 SC2 reving issues.
Okay, this problem takes a bit of explaining. When it's cold outside,
my 5spd manual likes to rev up on it's own. the colder it is, the worse the problem gets. At it's worst, it's rev'ed itself up to 3800 rpm, while in neutral. When it gets that bad, it also accelerates on it's own. If it's not doing it too badly, I can pump some gas in and it'll settle down, or, oddly enough, I can stomp on the break which will sometimes settle it down. It doesn't really do anything to the car performance wise, it's mainly annoying, as I'm sucking gas, and gas milage is the main reason I bought the car, and it's embarrassing to be sitting at a red light and have my car roaring at 3500. Also, once in a while, when first started in the cold, it'll die as soon as I put it in gear. I always warm my car up. 10 minutes at least (I live in Wisconsin, it's bloody cold in the winter). If the car doesn't roar up as I was talking about previously, it will start and sit between 1000 and 1500 as it should. This is when the other problem happens. It will idle wonderfully. I get back in the car, pop it in reverse, and as soon as I touch the gas, it dies. I let it roll a bit, put it in first, it dies. The only way to keep it running is to really hit the accelorater, and obviously, at end of my driveway I have to stop. While stopped, I have to keep the clutch half way depressed to keep it running. Once I can get the car into 2nd gear, I'm good, but until then, it dies. I've had the 02 sensor replaced, as my mechanic thought maybe that was the issue. No luck. He can't think of anything else, and I really don't want to take it to the local dealership to get it checked out. Any ideas? |
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#2
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95 SC2 reving issues.
> wrote in message ups.com... > Okay, this problem takes a bit of explaining. When it's cold outside, > my 5spd manual likes to rev up on it's own. the colder it is, the > worse the problem gets. At it's worst, it's rev'ed itself up to 3800 > rpm, while in neutral. When it gets that bad, it also accelerates on > it's own. If it's not doing it too badly, I can pump some gas in and > it'll settle down, or, oddly enough, I can stomp on the break which > will sometimes settle it down. It doesn't really do anything to the > car performance wise, it's mainly annoying, as I'm sucking gas, and > gas milage is the main reason I bought the car, and it's embarrassing > to be sitting at a red light and have my car roaring at 3500. > > Also, once in a while, when first started in the cold, it'll die as > soon as I put it in gear. I always warm my car up. 10 minutes at least > (I live in Wisconsin, it's bloody cold in the winter). If the car > doesn't roar up as I was talking about previously, it will start and > sit between 1000 and 1500 as it should. This is when the other > problem happens. It will idle wonderfully. I get back in the car, > pop it in reverse, and as soon as I touch the gas, it dies. I let it > roll a bit, put it in first, it dies. The only way to keep it running > is to really hit the accelorater, and obviously, at end of my driveway > I have to stop. While stopped, I have to keep the clutch half way > depressed to keep it running. Once I can get the car into 2nd gear, > I'm good, but until then, it dies. > > I've had the 02 sensor replaced, as my mechanic thought maybe that was > the issue. No luck. He can't think of anything else, and I really > don't want to take it to the local dealership to get it checked out. > Any ideas? > Another Sconny'! Last I checked the idle point was between 850 - 900RPM, and it will spike and stay at 1000 if you have the A/C on or you just cranked it over. It should quickly settle to the idle point though. Though as I'm a newbie mechanic I don't know what else to say. It isn't the O2 sensor, since mines bad and my car still performs ok, though after a heavy acieration or highway workout the car wants to drown itself, and my gas mileage sucks. Where the hell in Wisconsin do you live? :P |
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95 SC2 reving issues.
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#4
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95 SC2 reving issues.
>> I've had the 02 sensor replaced, as my mechanic thought maybe that was
> the issue. No luck. He can't think of anything else, You need to consider finding a new mechanic who knows how to properly diagnose the problem. > I really > don't want to take it to the local dealership to get it checked out. You've already replaced an O2 sensor which didn't fix the problem. A diagnostic from your Saturn dealer would likely have accurately identified the problem, and probably would have cost less than you've already paid. I've had a problem or two over the years that I could not figure out myself, and the dealer has identified it quickly and accurately. And I believe the diagnostic fee was around $30 or so - cheaper than replacing ONE part that doesn't need to be. My thoughts on what to check out (plugging into the PCM and reading its codes will go a long way): coolant temp sensor or the idle air control solenoid. Good luck, Lane [ lane (at) evilplastic.com ] --- Visit my Saturn Car Audio and Performance Page at http://www.evilplastic.com > wrote in message ups.com... > Okay, this problem takes a bit of explaining. When it's cold outside, > my 5spd manual likes to rev up on it's own. the colder it is, the > worse the problem gets. At it's worst, it's rev'ed itself up to 3800 > rpm, while in neutral. When it gets that bad, it also accelerates on > it's own. If it's not doing it too badly, I can pump some gas in and > it'll settle down, or, oddly enough, I can stomp on the break which > will sometimes settle it down. It doesn't really do anything to the > car performance wise, it's mainly annoying, as I'm sucking gas, and > gas milage is the main reason I bought the car, and it's embarrassing > to be sitting at a red light and have my car roaring at 3500. > > Also, once in a while, when first started in the cold, it'll die as > soon as I put it in gear. I always warm my car up. 10 minutes at least > (I live in Wisconsin, it's bloody cold in the winter). If the car > doesn't roar up as I was talking about previously, it will start and > sit between 1000 and 1500 as it should. This is when the other > problem happens. It will idle wonderfully. I get back in the car, > pop it in reverse, and as soon as I touch the gas, it dies. I let it > roll a bit, put it in first, it dies. The only way to keep it running > is to really hit the accelorater, and obviously, at end of my driveway > I have to stop. While stopped, I have to keep the clutch half way > depressed to keep it running. Once I can get the car into 2nd gear, > I'm good, but until then, it dies. > > I've had the 02 sensor replaced, as my mechanic thought maybe that was > the issue. No luck. He can't think of anything else, and I really > don't want to take it to the local dealership to get it checked out. > Any ideas? > |
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