WebSep 5, 2008 · ski. · #3 · Dec 5, 2005. It's perfectly normal for the engine to idle at a high rpm when first started in cold weather so that the engine does not stall due to higher oil viscosity, which in turn causes higher internal friction from the engine's components, i.e., piston rings, rod and crankshaft bearings, etc. The computer's coolant and ... WebNov 25, 2024 · 16 years of experience It is normal for the engine rpm to go up to about 1200 to 1400 rpm when first started and then comes down gradually. This is for emissions during cold start and considered normal.
Too high RPM on idle Harley Davidson V-Rod Forum
WebWhen the engine is cold, the engine does not run as well, so it counteracts this by running at higher RPM to avoid stalling. The main issue is fuel vaporization. Fuel vaporizes at 196*F … WebMay 7, 2010 · Every morning when I start the car, despite leaving the key in the forward position for 30seconds plus, the car will rev up to 2k RPM and will not go down for ~1 minute or until I put some pressure on the engine, i.e. AC or gas. -Left and right upper bank O2 sensors. Use starter fluid and looked for vacuum leaks. try travel
Rough when idling down from cold start - Kia Soul Owners
WebMar 12, 2024 · The car jumps upwards of 3000 rpms on cold start and holds for about 20 sec before it drops to idle around 750 rpms. I've done an idle relearn the old fashion way, disconnecting the neg cable and letting it sit. Cold start until it reaches normal operating temp, idle for 1 minute, turn a/c on for 1 minute and drive for about 20 miles. WebOnce the RPMs at idle drop, you're good to go, but run it gently until it's at temperature. Apparently when the oil is cold, it puts wear on your engine, and if you let it warm up slowly (read: idle until warm), it puts more wear on the engine than letting it idle for ~60sec before driving it gently. I'll come back with links to the videos I ... WebNov 15, 2009 · High RPM's at cold start Lately when I start my truck in the morning or after it has set for a period of time, it will rev to what I would say about 2000 rpm (I don't have a … phillips edison cincinnati