Starts then dies right away

I took the truck into the shop and I wish I didn't because they replaced what you said for $270.00 and the sensor I just found on Amazon for $45.00 ochy! Glad it fixed though

My 03 trailblazer has the same problem it will start and run really rough theb shut back off bought new plugs thought maybe fouled them out but it still does the same thing. Any advise?

It will not pull a code. It is like the computer has been reset. I just replaced my camshaft sensor, crankshaft sensor and map sensor, got a new a fuel pump as well as fixed the vacuum leak. It still cranks if I remove the fuel pump relay it starts for a few then shuts off.

Yes, if I hold the pedal down it has almost a normal idle and if I let off the gas it bounces then shuts off.

My uncle says it is the gas regulator, but I would like to know if there is any way to test that before I buy the part. I have quite a bit of money into the truck and would like to see it run again.

Can you tell me what is wrong when my engine shuts off while idling or in park when iI turn my ac on?
The check engine light is on as well.

Can't turn on AC if rpms are below 1k without stalling the engine. Once above 1k rpm I can turn on the AC and it runs fine. The compressor doesn't cycle repeatedly and it produces cold air. Once I get below 1k rpm or I idle, the compressor keeps kicking in about every 5 seconds and eventually kills the engine.

Thank you! If this solves my problem, I will be sending a donation to show my thanks.

I've been fighting the same problem for the last year plus. In time you will likely get a trouble code setting off the check engine/service engine soon light. The trouble code will be for the cam shaft position sensor and the crankshaft position sensor. I was Unfortunate enough to bring it to the wrong dealer for the first 3 tries to fix the problem and got ripped off. With research on line and talking with several mechanics I was told and found out one sensor will set off the other and both will need to be replaced. They are not too expensive, 80 U.S. Dollars for the two parts. After the sensors are changed the PCM will need to "relearn" the timing of the engine. This almost has to be done at a GM dealer, and cost about 80 U.S. Dollars. Total time to replace both sensors should be 1/2 hour. The cam shaft sensor is very easy to change, the crank shaft sensor is a bear to get at. I choose to change the cam sensor myself, but couldn't reach the crank sensor. Change both sensors and have GOOD DEALER relearn the computer system. Mine seems to be working for now, best of luck.

Electrical problem
2006 Chevy Trailblazer Four Wheel Drive Automatic 120700 miles

While driving down the high my engine has shut off twice. When this happens all the warning lights on the dashboard come on. When I turn the key the engine will not crank. I let the car sit for a couple of minutes turn the key and it starts. I have taken it to a pep boys and a gm service center and they have told me several different things but it does not seem to correct the issue. What do you think it is?

We need more info. Have ou kept up with routein maintanence? Does it even turn when you try to start it? When an engine dies, all the lights will come on on the dash. Could be everything from a vacuum prblem to filters (air fuel ) Donate to get a pro involved and tell us your last tune up date. Spark plugs and so on.

I had the wires to the alternator cleaned and reattached because they were corroded. I was told to drive so that the computer could reset even though I have driven it for over a week when I turn the heat on the engine stalls and will cut off. I recently had the temperature control panel replaced but I did not have this problem until I had the wires cleaned. Any suggestions? I have read that removing the negative cable from the battery will reset the computer so it will know to maintain the idle when extra power is used.
Any information you can give is appreciated. Thanks