My 1999 alero srevving up high shen stalling and it is makeing a wisling sound i just had the throdel body cleande

1999 Oldsmobile Alero Stumble and Loss of Power 3000rpm

www.2carpros.com/.../oldsmobile-alero-1999-oldsmobile-alero-stumble-...
Sep 28, 2008 - Engine Performance problem 1999 Oldsmobile Alero 6 cyl Front ... Hey All, Had a very rough running Mazda 626 on LPG, engine code FP.

1999 Oldsmobile Alero High Idle Fix - YouTube

? 1:47
www.youtube.com/watch?v=xBV9BmjFZVs
Jul 4, 2010 - Uploaded by GrindTimeAuto
1999 Oldsmobile Alero High Idle Fix ... How To Fix Or Prevent Stalling, Surging Or Rough Idle, Cleaning Throttle Body and MAF Sensor ...

with engine idle ...take a wd40 or equivalent
listen to engine sound if you spray on the leak then engine will change sound
or listen to small wisle

Yes, and it could be an ignition problem too.
The throttle body is clean too ?

make sure the air filter is intact and clean, the engine needs to breathe
do you have fuel pressure?
how about spark, do you have a good spark ?
change plugs and wires

SOUND LIKE IDLE SPEED CONTROL IS FAULTY.

does the rpm motor kick down? you may need to check your vacuum hoses, and also you may want to check your exaust, sounds wierd but that can cause the car to stall at times.as for the traction light, your hitting the brakes to hard. try slowing down a little slower while stopping, and keep distance for saftey.. if you can take it a little slower at lights and turns, without braking hard and it stops stalling.

Runs fine when not put in gear? Sounds like transmission is stuck in "lock-up". Need to go to transmission or full automotive shop for repair. This is not something you want to attempt on your own unless you are experienced with removing valve bodies and solenoids from the inside of transmissions.

you need a tech 1 or 2 scanner. when trac light comes on you have a problem in the abs brakes system .and trac control system.

I have a 1999 Oldsmobile Alero and my car was running rough and stalling. Also when the car was shifting, it was making a "thud" sound. My service engine light was on, so I took it to Autozone to run their diagnostic tool. It came back with code P0108 and they advised me to check my vacuum hoses as a possible solution. I looked and found that my air hose running from my throttle body to my map sensor was disconnected. I reconnected the hose and the engine ran normally and didn't make any "thud" sound when shifting. My car is back to normal. So check your hoses. If its still running rough, you may need to replace your map sensor.

also check he hoses to the map sensor...its a small sensor on the back of the upper intake plenum. Pretty common issue....