Question about 2001 Oldsmobile Aurora

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On cold mornings 2001 Aurora is stalling at stoplights till it warms up

Starts up fine

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  • Oldsmobile Master
  • 3,682 Answers

Air temp sensor are maf fault on the air intake. most of the newer types have the temp sensor fitted to the maf sensor box tel's engine to pump more fuel in until engine temp sensor reaches it temp then turns off the add more fuel. if not this it can be a clogged up egr and some fuel clean should sort this out if you not competent at removing it and cleaning it out, also another part can be the idle controller dirty injector cleaner can clean this out to.

Posted on Mar 24, 2014

  • Peter
    Peter Mar 24, 2014

    If you clean the MAF sensor yourself use the proper cleaner and do not rub or otherwise touch the small wire inside the tube as it may damage it. They are very sensitive and not very cheap sometimes like 2-3 hundred dollars for a new one.. First things first usually if there is a mixture problem of any kind the sensors mounted throughout the engine will throw a code that will give you a starting point. If you don't have a reader stop by your local auto parts store and most of them will use their code reader and tell you what the code is. Just remember if it says a certain sensor that does not always mean change that sensor it means something is wrong that could be the sensor or something is being detected by that sensor so don't just buy a sensor because it says o2 sensor. It could be something as simple or complicated depending on where it is located as a vacuum leak. Speaking of which I would also check for any possible vacuum leaks . They can confuse an engines sensors making it do crazy things. I'd have to look up this particular engine to verify some thoughts but I have seen a fuel pressure regulator do the same thing when it started to go bad. If it has one pull the vacuum line off and check to see if fuel comes out if it does then replace the regulator. Also check the vacuum lines for the regulators on GM products the rubber part of the line is an elbow and from heat ,vibration, and age they will get a tiny split in them that is almost impossible to notice. I fought one truck Knowing the problem was related to the fuel pressure regulator but no fuel came out when I pulled the line off. My full pressure was low and from experience I kept telling everyone but they said I was wrong . In the end there was a crack in the robber line so it could not pull enough vacuum for the regulator to work properly. I replaced it then tested it again with the idea it was still the regulator and when I pulled the line off there was the fuel, replaced it and no problems since. Not enough vacuum to pull the gas through the ruptured diapham. Anyway. I always put long stories on for a reason. Some times you have to do detective work before you start buying and switching parts or you'll go broke. Check for codes if you have any if not look at the easiest stuff first because believe it or not that is usually what is wrong. Good luck and keep us posted on what you find.

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SOURCE: 97 Olds Aurora AC blowing warm air a day after recharging system

Several- The system should hold freon for years without leaking. There are pressure switches and they cut off the compressor with an undercharge and an overcharge. You need guages to measure the charge. There are testers the A/C shops have called "sniffers" which can detect a leak. If you have no leak then you need a technician to add or remove freon to get the concentration right. Or you need guages.

Posted on Jun 12, 2009

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SOURCE: my 2001 oldsmobile aurora,wont start in the cold

the battery is going weak. check voltage at battery when engine is off, should be at least 13 volts if alternator is ok. when running if alternator is ok, then it should read at battery post at least 14 to 14.5

Posted on Feb 07, 2010

  • 14036 Answers

SOURCE: engine will not run, it starts and stalls. when

SCAN IT FOR IDLE SPEED CONTROL PROBLEMS.BUT OTHER POSSIBLE CAUSES TO YOUR STALLING IS BAD PLUGS AND WIRES CLOGGED FUEL INJECTORS AND CLOGGED FUEL FILTER.IF ALL IS GOOD HAVE FUEL PUMP FUEL PRESSURE CHECKED IT SHOULD BE 41- 47 PSI.

Posted on May 25, 2010

  • 432 Answers

SOURCE: I have a 1991 Olds cutlass ciera 3.3 v6, starts up

Good Evening, you might want to check those injectors, I can not remember for certain but that setup was sequential and when one or two have a problem it would take out the rest. Ohm out the injectors and see what you have there.

Posted on Nov 03, 2010

  • 615 Answers

SOURCE: My 97 Aurora is stalling whenever I am at a

Put an ODB-II meter on it and look at fuel trims, air flow, and O2 sensors. Also follow any codes it might have. I would guess maybe intake plenum gasket as these crack often on the 4.0L.

Posted on Nov 03, 2010

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I need to get a clear mental picture of what exactly is happening.

With this said, you stated that the car "runs fine" until warmed up.

Q: When you start the car when cold it idles fine?
Q: If you allow the car to idle until "fully" warmed does the car stall?
Q: As the car begins to warm up, Does the RPM fluctuate abnormally?
Q: Does the car Only stall when you press on the gas pedal or does it stall just sitting and idling in addition to pressing the gas pedal?
Q: If you can drive it while cold does the car stall during acceleration when warm or only at Stop Signs / Lights?
Q: If you wait 20min or so, can you start the car again?
Q: How many miles are on the car?

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