20 Most Recent 1999 Oldsmobile Alero - Page 4 Questions & Answers

The only way I know of is to go to the dealer. it has to be the original one to the car. showing ownership they can retrieve it from GM records. Look in owners manual if you have it some times it is written down by someone that may have had the problem before.

air idle control valve, I dont belive you have a ideler set screw..I do belive the problem is what I have Listed..........Best of luck


How can I tell if I need a new air idle control valve?
If your car has a rough idle or the idle cycles up and down, then chances are that you have a bad idle control valve. On modern vehicles, the purpose of the idle air control valve is to regulate your idle, and keep the idle smooth. The idle valve is controlled by the ECU or the computer, and when in gear the idle should be between 800 and 1000 rpm, and not in gear, between 700 and 900 rpm

All the windows work off one circuit breaker, there isn't a relay for them. So if one works, they all have power. Replace the window regulator and motor inside the door.

check the ground

i would check the thermostat first. even if your mechanic did replace it.the thermostats you buy these days only last about a year or 2.

In the tank.

Have you checked the engine computer for trouble codes ?

From my Mozilla Firefox browser, I typed in, "http://www.yahoo.com." When Yahoo pulls up, just type in, "photo/drawing of 1999 Oldsmobile Alero Knock Sensor location," and press the "Enter" key on your keyboard. You will immediately get links to 16 photos/drawings of the Alero Knock Sensor location you seek. You will also find 10 more links using words, and an "Also try" list of 10-more similar words to use in your search on Yahoo to see what else might appear. If you want to use your regular browser, here's the link you need to paste in so you can find those same photos/drawings: https://search.yahoo.com/yhs/search?p=photo%2Fdrawing+of+1999+Oldsmobile+Alero+Knock+Sensor+location&ei=UTF-8&hspart=mozilla&hsimp=yhs-002 Best wishes! Michael

No. .. The relay(s) one or two for the injectors are located in the engine-bay fuse box. They should be clearly marked on the lid of the box. I think what you are referring to are the coil packs where there are coils for each spark plug. You did not mention the type of engine it has, but I am assuming it is a v6 series.

Could be a thermostat or possibly a bad radiator cap....both are very cheap and easy to replace. How to Change the Thermostat in Oldsmobile Alero eHow This tells you step by step how to replace the Tstat. Good luck

Sounds like the system is low on liquid coolant.

I'd use a gage and check proper fuel pressure. Also, check for external gas leak, at the fuel pump--fuel lines--fuel injector/s--fuel pressure regulator, and check evap system.

I doubt the problem is anything connected to the ABS. Depending on the actual code, cylinder 3 could be a spark plug or coil problem, or compression problem. If the check engine light comes on, the trac off does too.

hi, you need to have the car scanned, go to an autozone and have them scan the car for fault codes.it is impossible to find out what is wrong without those codes.

Here's a link on replacing your valve cover gasket. SAVE 20 ON ONLINE SHIP TO HOME ORDERS OF 100 OR MORE

O2 sensor can affect it.

FUEL GAUGE COULD BE STUCK.WAIT DAY OR TWO GAUGE WILL RETURN BACK NORMAL POSITION IF NOT GAUGE COULD BE FAULTY.

Inside the transmission behind the side cover. Drivers side.

You might have a bad map sensor.