1990 Plymouth Sundance "cold start idle high" Questions

start when its cold out. once it gets alittle warm it starts.. whats wrong with it? please help I think this TSB will solve your problem even know your car is older. NO: 18-05-96 Rev. A GROUP: Vehicle

...cold start condition. noticed idle would get a little high sometimes prior to condition but would return to normal. no other engine performance problems before the hard start occured. have good fuel ...

...cold start engine idles high then low then high then low for about one minute then idles rough. just do induction / throttle body cleaning - will solve high idle on start up check for a vacuum leak. ...

...cold start issues:---- Go through the list of help links mentioned below:---- Click the link :---- Cold start problem and vehicle shudder around 2500 to 3500 rpms ...

...cold start heater location High idle on start; may or may not idle down It likely has EFI (electronic fuel injection) and an idle air control valve that regulate idle speed. They can get gummed and ...

...a high idle. Now this is an issue that is becoming more an more frequent, but there is days that it runs fine. Im from the Northeast. I would look at the cold start injector first and work from

...COLD START I have a very high idle noise during my cold start. I could not hear the cranking noise. It just immediately turn on to a very high acceleration then around 10 minutes it will go down to a ...

cold yet. The car seems to run fine. Its just when i first start it it idles high for about 30 secs then goes back to normal.Any idea is this is normal or not? Its normal .. its the automatic choke,,,

cold. The high idle speed lasts until the engine warms up. I have also observed high HC during the annual emissions test. The high idle speed at start up is normal. As the engine temperature increases

...dies What is to high? 2000RPM, 2500RPM? Also cold idle and start up idle and many other factors vary with make, model and type of engine, smaller engines in most cases need a high start up