brewcity1

Hey guys...newbie question again, after search came up with different answers. My 2003 GLE is idling at 1250 RPM's when I start it, and its in Park. If I leave it run for about 2-5 minutes...it may drop to 1100 RPM's, but nothing below that. If I then put it into Drive...it surges to about 1250 again for a brief half second, then down to 900 RPMs in Drive. From what I have read...this is high. If I put it back into Park...it surges a bit, then settles at 1000 RPMs. If I once more put it in gear...it is at 900 RPM's. This is for a cold start. I did notice this morning that at a stop light, at operating temp..it was at about 600-700.
Is this normal behavior for this 3.5 engine, or should I look to replace or clean anything to make it idle better or in the normal manufactures range? What is a good or normal idle for these engines at start up and operating temp?
Thanks again for ALL the help...I truly appreciate your expertise!

5.5SE6MT

iTrader: (1)

Typical behavior my friend.
once you're at operating temperature, is when your idle will drop. In your case, you noticed that you sit around 6-700 rpm, which is proper.

brewcity1

Awesome...thank you for the clarifications. I really appreciate it! I was just worried it was high.
Its so nice to have a forum like this that has extremely friendly and helpful members...especially to us newbies!

Cotozic

Another instance is where I live, when it's around freezing temperature, I usually idle at 1500 until the thermostat starts reading heat, and then I start to gradually drop.

So again, no worries.

brewcity1

Thanks...great to know....especially here in Wisco where its almost always below freezing!
So should the idle decrease a bit as the weather warms up?
Thanks again!

nestorlugo

iTrader: (11)