Cold Weather RPMs

[awfavre]

When it’s cold outside (40 degrees F & lower), my ’04 base (manual tranny) starts out revving high, like normal, around 2k RPMs. When it should start revving lower after warming, it has a disturbing tendency to rev higher. It’ll rev up to maybe 2.4k, then back down to 2k, then back up to 2.4k. It keeps doing this like it’s stuck on a cycle. Eventually, it stops, b/c I put it in gear & take off. I have tried to give her a bit of gas, but that doesn’t seem to affect it any.I took it to my dealer last year when I first noticed it (when it was still under warranty), but of course, they didn’t find anything wrong. It seems to be worse this year. I’ve never had a car do anything like this in cold weather. Anyone have any thoughts? (I tried searching for info about this in a prior thread, but couldn’t find anything.) Thanks in advance.

[kevera]

search "idle hunting".

[awfavre]

Thanks, Kevera. By the looks of it, there's no "solution." Sigh.Thanks again.

[kunkstyle]

Do you plug it in overnight?

[stoutvibe]

I have what sounds like the same problem as you. Check out my original post: http://forums.genvibe.com/zerothread?id=25029I actually took a video of it to document what it does every cold winter morning (which there are a lot of in MN).http://youtube.com/watch?v=Ev8ZUbN5f8sI think most people will agree that at this point, some Vibes have it and most don't - those that do, it isn't causing any damage, it's just more of an annoyance. Like yours, mine has never thrown a CEL code either. If you plug your car in at night, it will definitely help but not always completely stop the car from doing this.

[Petrucci914]

I believe my car used to do this. I used to be parked outside when I lived at home and there were high RPMs there when starting up. The viscosity of oil is messed up when it's really cold and much of that is to be expected. Now I'm in a heated garage but it's still cold but I have no high rpms or anything like that and that is since my supercharger install which did include a different thermostat which others have mentioned before as being able to fix this.

[awfavre]

Stoutvibe, your video shows exactly what my Vibe does. Kunkstyle, I don’t plug my Vibe in overnight. It usually sits in a garage that’s semi-heated during the winter, but the Mustang is in there right now. Once the Mustang goes into storage, the Vibe goes in the garage, & the idle hunting/pulsing is almost never a problem after then – except when I park away from home on cold days.Petrucci914, this pulsing has occurred with my Vibe whether I’ve used synthetic (Mobile-1 5W-30) or regular oil. I thought synthetics were more viscous.As long as it doesn’t cause any mechanical problems, whether short-term or long-term, I can live with it. It’s just annoying. Mostly, I want to make sure it’s not a problem I need to manage now to prevent problems later. Thanks so much for GenVibe & its users for providing a forum to educate folks like me about stuff like this. You guys/gals are the best!