Last post on Aug 28, 2013 at 1:34 PM
You are in the Oldsmobile Alero
What is this discussion about?
Oldsmobile Alero, Auto Repair, Engine, Sedan
#158 of 193 Re: idols up and down when in park [mcpablo]
Jan 11, 2010 (8:03 pm)
I am having the same problem. My 2000 model starts fine in 10 degree weather. Then, after driving 15 minutes and the car is running warm, I arrive to my parking garage. So, I usually park on the 4-8 floors, meaning I have to stop at least 5 times. Each time the car wants looses RPMs and acts as if it is going to shut off. By the time I am parking in a space, I have to act quickly, or it does shut off, and often times it does as I set it in "park".
Has anyone had this problem resolved, because it sounds common, and there should be a fix?
I am going to check the VIN tomorrow (on Oldsmobile.com) for recalls available for my car.
#159 of 193 Re: idols up and down when in park [alero_trouble]
Jan 11, 2010 (9:32 pm)
OK, I have pondered this for a few minutes. Here is what comes to mind first.
When it dies, are you able to restart it without trouble? If so, then it sounds like a vacuum leak in one of the vacuum hoses that go to the throttle body. If the vacuum hoses are good and tight, ( not cracked ) then there is a leaky gasket on the throttle body. Here is why I say this, When it is cold, the rubber hoses and gaskets have contracted just enough to hold a tight seal. After the engine gets to operating temperature, the hoses and gaskets soften up and that will cause vacuum leaks.
I hope this helps,
#160 of 193 IDOLS AT 1900 RPMS
Jan 18, 2010 (4:28 pm)
My 1984 corvette started idoling at1900 rpms and i can't slowm it down. checked the tps it's right on any suggestions pleases Help
#161 of 193 Re: IDOLS AT 1900 RPMS [talessi]
Jan 18, 2010 (11:51 pm)
It has been several years since I had my hands on a corvette. There are a couple of things that I suggest you check first. Make sure that your throttle cable is not snagged some where. Check and make sure that you don't have vacuum leaks. Does your Corvette have a carburator or does it have a throttle body with fuel injectors? Reply to this message and let me know which one you have.
#162 of 193 Re: IDOLS AT 1900 RPMS [appellof]
Jan 19, 2010 (6:46 am)
Daniel, it's a 84 with two throttle bodies; cross fire injection. all was ok when I backed it out of the garage buy when I started it to put it back in thats when the idol problem started . I checked the tps it checked out ok nothing looks out of order, I talked to the service manager at our local vette dealer hr thinks it could be some dirt got into one of the sensors or it could be a computer problem. Thanks for replying, Tony
#163 of 193 Re: IDOLS AT 1900 RPMS [talessi]
Jan 19, 2010 (9:38 am)
If you did not take it apart, then I can't see how dirt got into one of the sensors. As far as the computer is concerned, I really don't think the computer just decided that it was going to fail. Usually, when the computer is failing, you will have more problems than just an idle issue. Has the car been sitting long in the garage? There is however, one possibility to look at. How many miles are on the car. Check your oxygen sensor. If your oxygen sensor is clogged it will tell the computer to adjust the air/fuel mixture and that will cause the RPM's to go up. When the engine is running at the high RPM, does it seem to be running smooth or does it seem to be running rough? Oxygen sensors do have a habit of failing quickly. Refresh my memory, does that have dual exhaust? If so, I believe there are 2 oxygen sensors.
There is, however, one other possibility. There is a gasket between the air intake body and the fuel intake that bolts to the top of the engine. That gasket could be cracked. Also, remove the air ducts that attach to the front of the throttle bodies from the air cleaner. There you will see a metal baffel on each throttle body that closes off the air to the engine. Make certain that each one is free from dirt and carbon build up. Make certain they travel full range from closed to open. I have seen the dirt and carbon build up so much that it does not close all the way. And again, make sure that there is not a loose or busted vacuum hose that attaches to the throttle bodies.
I want you to understand, these are just what comes to mind. They are merely suggestions. If I had my hands on it, then I would be able to give you more difinitive answers. Let me know how you make out with it.
I hope this helps,
#164 of 193 Re: IDOLS AT 1900 RPMS [appellof]
Jan 20, 2010 (6:49 am)
Up till now I havn't been able to get any engine codes because I disconnect the battery when I put it away, So yesterday I went for a hell ride aparintly it's idling at 70mph anyway I came up with a code 15 my manual tells me it's the coolant sensor so I'm going that route today. To answer your questions it has been sitting a long time and it has duel exhaust and ran smooth after it cleared out a little. the baffles you talking about are they the throttle plates or the air cleaner baffles? I'll lit you know how I make out,
. Thanks again for your time.
s the coolant sensor so today i'm taking that route.
Yes it has been sitting a long time 95,000 miles duel exhaust. according to the manual this sensor can effect the idol. I appreceat your help I've worked on alot of cars in my 56 years never ran across something like this oh I almost forgot she ran smooth as a whistle once it cleared out a little. Thank again I'll let you know how I make out.
#165 of 193 Re: IDOLS AT 1900 RPMS [talessi]
Jan 20, 2010 (8:01 am)
The baffles I am talking about are the throttle plates. Yes, Please let me know how you make out with it. Now that you mention it, you are correct about the coolant temp sensor. If it is telling the computer that the coolant temp is too high, it will adjust the RPM's to make the coolant circulate through the radiator quicker.
That sounds about right 1900 RPM's in that car is about 70 MPH.
#166 of 193 Re: IDOLS AT 1900 RPMS [appellof]
Jan 26, 2010 (5:17 am)
I'm having a hard time typing today my hands are shaking from my medication. Life's a Bitch then you buy a old vette then you have it smashed at the junk yard.
#167 of 193 Humming noise !
Aug 20, 2010 (6:34 am)
Hi , my name is Shaun and I have a 2004 Alero Oldsmobile. It has 97,000 miles on it and it had about 55-60,000 on it when I purchased the vehicle . The problem that I'm having is that when I'm in gear and I'm driving there seems to be a dull humming noise coming from the front of the vehicle . A shop said it might be a barring or something . It almost sounds like something is rubbing . Also , I change the breaks back in June , it's not August and they are already going on ! What's going on ? Anyone else having these problems ? Let me know ! (: