Ok wassssssup all my a-cl peoples!

I still want to know why my car idles at 1,500rpm all the time WHEN I START IT UP. Day or night and if i havent been in the car for lets say 1 hr it idles at 1,500rpm then 5 min later it goes down to 750rpm. If i just drop it in reverse it will go down to 750 and stays at 750 whenever im stopped. But why is the car always idling soo high when i start it? My friends car doesn't seem to do this...And usually in the morning ill start it up and go back inside and grab my stuff and then when I go to drive the car its at 750rpm, but Is it bad if I drop it into reverse from 1,500? I have done it a couple times when i was in a rush for class and it seems to kinda SLAM down for a second. thankz in advance

 

That is the way the engine warms itself up fast. Though i can't see why this would be happening in florida to your car. Could be a bad thermo

 

thats like the choke its just to warm up mine does it all year round i live in ct

 

Tap on the gas a couple of times and see if it goes down....

 

Ya when I rev up the car to about 2500 rpm it goes down a tad bit faster but still takes a good 4-5min to go down to normal idle at any time of the day even when its 80 degrees out and even like 30 min after i drove it ...

 

Most cars idle high then come down its nothing to worry about.

 

my car idles at about 1500 in the mornings.. and when the temp gauge goes above the Cold line.. the RPM's usually drops down to 1000, and then 750

 

Just checking......Have you cleaned your throttle body lately? Chck that and the cable too.

 

Sorry bringing my own thread back from the dead...

I have gotten my thermostat replaced but my car still idles at 1,500 rpm all day long (when I start the car up). And its really annoying cause usually i wait like 3-4 minutes until it hits 750 rpm. Anyone know what could be my problem? Should I even let it go down to 750 or just drop it in reverse?

BTW how do i clean my throttle body? And what cable should i check!?

 

Also does anyone elses car idle at 1,500rpm when you start it up for a couple minutes?

 

i noticed that when i do oil change... if i use synthetic oil.. my car idles super super low... (i just realized that) when i used standard 10W-30 engine oil.. it idled at 1500 for about 10 seconds.. then drops down to 1100 for about 1-2 min.. then drops to 900 for about 1 min.. then stays around 750...

but.. as i said before.. after i switched to synthetic.. it idels at around 1000 when i start it up.. and it drops to about 500..

and on hot days.. when i try to start my car up.. it idels around 300.. (odd...)

 

rodxx- i share the same problem

 

I live in florida and my car is at 1500 at start up then it drops down after a few min, it has done it since i first got the car. i dont think its a problem and it didnt change any when i did a seafoam cleaning. I wouldnt worry about it.

 

Is this a proven fact? Synthetic oil idles lower? why?