DonVito

So I got 07 rl with 50k miles. Recently when I start the car in the morning it idles ruff until the car warms up, and it's not only in the morning it's as long as my car been standing for half a day. It's only 60 degrees in the morning here where I live.
My rpm jump to about 1300 when I first start it and stays like that until warmup
Could it be my plugs?
It also sounds kinda like a tractor when the car is running and in park

Carbon Legend

Check engine light on? it could be a number of things. IACV sensor, EGR, Hole in a vacuum line, poor fuel pressure

Mike734

Look around for a disconnected hose.

DonVito

No check engine light. Thing is it runs normal when warmed up, and I'm over exaggerating the tractor sound, it's not super loud it's just it doesn't seem normal compare to all other cars I had

HEAVY_RL

iTrader: (1)

unless the bulb is blown in your car there should be a light with these symptoms.

You may want to get some one with a diagnostic computer to check it just in case.

A rough idle at start could be timing, a low battery, vacuum leak, or an idle air sensor, among other things.

DonVito

Well idk how long ago battery was changed, and how often would you need to change idle sensor? The thing is when I start it and rpms go the needle keeps fluctuating between 1100 and 1300 rpm.than whn car is warm it drops to normal rpm, usually within a minute

oo7spy

Legend #1 did this exact same thing for a year or two before I sold it. I never pin-pointed the issue, but I know that the EGR pipe was clogged. I also suspect that my fuel pump was on its way out. The car held a vacuum, and the EGR valve was sticky but still open/closed. It eventually got worse to the point that I would see drops in RPMs when stopping, and it would almost stall. I didn't have the resources we have here, so I gave up on it and moved on.

Have you gone through the service manual troubleshooting?

HEAVY_RL

iTrader: (1)

Another possibility... Let the troubleshooting begin.