Question about 1996 Chevrolet Lumina Mini

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Doesn't stay running.

I replaced the throttle position sensor.. only at the time I thought it was a 96' lumina it actually is a 95' lumina, does that make a difference? Also I get no reading from the obd I system. I can not get even one blink from the check engine light. Would that be the computer that is junk causing all the problems?

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  • chips7905 Feb 28, 2009

    So, do I need an adapter to connect to my obd2 code reader in order to get the codes out? My obd code reader has just the connector for just obd2.

  • chips7905 Feb 28, 2009

    Also, the vehicle starts when it is cold, but when I rev the vehicle a few times to get it warmed up then the vehicle will go down to idle for a second and then shut off. Then I get it to start again, then it shuts off again.

  • chips7905 Mar 14, 2009

    I have sprayed carb. cleaner all over the engine and have not heard any change in the engine speed or sound. It starts and runs until it gets hot then it shuts off. Then I try to restart it and it start for a second then shuts off again. That just continues unless I press the accelerator down to keep it running. At idle it doesn't stay running.

  • chips7905 Mar 15, 2009

    I changed the plug wires in the 95 lumina and the check engine light went out while the engine runs fine now. The vehicle still has a problem overheating. The temp gauge needle goes to max heat and then the Hot light comes on. I checked coolant and it was full, I checked lower radiator hose and it was hot, then I checked upper hose and it was cold. I am not sure what to do next? Should I change the thermostat?


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Changing the thermostat on a Lumina APV 1996 is very easy and cheap. Just note the direction so the replacement thermostat is not installed upside down. Its two bolts on the _right_ hand side of the engine, the opposite side from the serpentine belt. Follow the big black hoses. My replacement thermostat came with an integrated gasket, you might have to get a gasket separately.

If you want a cheap test of a thermostat, while the engine is cold, remove the radiator cap. Start the engine. Wait. Like a long time. When the temperature exceeds running temperature, e.g. 165 F or so, the thermostat will open and coolant will go through the radiatior and all of a sudden coolent will spash everywhere indicating the the thermostat valve opened. This is a dangerous and stupid test that can be avoided by simply replacing the thermostat.

You can also remove the thermostat and boil it in some water noting that it opens at the right temperature and so on, but again, why bother when thermostats are so cheap.

They make oil filters blush.

Posted on Jun 16, 2009

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Hello, there is a chance that you will not be able to pull codes out of your lumina the way you are trying to. There is a model changeover that GM had started implementing On Board Diagnostics2 in 95, that you must start pulling codes out like the 1996 but use the old style connector. I have had the same problem with a 1995 Monte Carlo I had. You may want to clean the throttle body and make sure you have no vaccum leaks anywhere . Just check by spraying carbuerator cleaner all over the engine, if the engine changes speed or sound it has found a leak. Thank You

Posted on Feb 28, 2009

  • suterman
    suterman Mar 15, 2009

    Hello, it sounds as if the thermostat may not be opening, or either the radiator is stopped up, or you may have a bad waterpump impeller.


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IF IT RUNS AND STAYS running. then that means the car is flooding or is in a sad state of tune.
tune it up and it will start every time.

if not ask me here.
see my guest book. ask a question.

1; tune up
2: bad ECT sensor.
3: stuck closed IAC.
my page answers all sidekick questions.

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Doesn't stay running

Also you might check the Throttle Position Sensor. They could also cause this problem.

Please contact me if your problem presists.

Thanks, Charlie

Feb 02, 2009 | 1996 Chevrolet Lumina Mini

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