Starting Issues sometimes when i start my 94 laredo it acts like it wants to die not every time that it is started tho. Everywhere that I have called to get an answer say that itll cost 100.00 to have it looked at!! Dont have that kind of money. I was thinking maybe oxygen censer but not real sure. Once we shut it off and restart its fine...What could the problem be?

If youve replaced all those parts start by checking everything is mounted correctly. If it is even a tiny amount out it will cause issues.
Next Re-Bleed the brake system starting with the caliper furthest away from the master cylinder and do the nearest one Last.

I would check for a bad or corroded connection on the battery cables.

Get the vehicle scanned,there is error code stored in ECM,that code will tell what part exactly to look,for:----
But other then these for starting troubleshooting for these problem,

CAR NO START PROBLEMS:-----

It can be the issue with weak battery or faulty battery or if battery is ok,then its faulty starter causing the issue.

From start to end troubleshooting these problem i suggest you to click the link below and follow its procedure:-----

What to Do When Car Turns Over But Won't Start?

http://technoanswers.blogspot.com/2012/11/what-to-do-when-car-turns-over-but-wont.html

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Car starting issues?

http://technoanswers.blogspot.in/2012/02/car-starting-issues.html

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Car Starting Problems

http://whoisbyme.blogspot.in/2012/06/car-starting-problems.html

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1991 Toyota Trecel: Engine Starts fine but dies when gets Warm?

http://whatisbyme.blogspot.in/2012/05/1991-toyota-trecel-engine-starts-fine.html

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1994 Toyota Pickup: Starts fine but dies in few seconds?

http://howtobyme.blogspot.in/2012/05/1994-toyota-pickup-starts-fine-but-dies.html

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1999 Chrysler Cirrus: 8 IGN Fuel Starter Fuse Blows?

http://whatisbyme.blogspot.in/2012/06/1999-chrysler-cirrus-8-ign-fuel-starter.html

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2001 Toyota Camry: No start After replacing Battery?

http://whatisbyme.blogspot.in/2012/05/2001-toyota-camry-no-start-after.html

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1989 Toyota Pickup Truck: Turns over but not start?

http://whatisbyme.blogspot.in/2012/05/1989-toyota-pickup-truck-turns-over-but.html

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Car dead and will not Start?

http://whatisbyme.blogspot.in/2012/05/car-dead-and-will-not-start.html

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1995 Lexus LS400: Running Hot?

http://whatisbyme.blogspot.in/2012/05/1995-lexus-ls400-running-hot.html

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2001 Toyota Prius will not start?

http://whatisbyme.blogspot.in/2012/05/2001-toyota-prius-will-not-start.html

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1996 Jeep Grand Cherokee: Engine will not start?

http://repairhelpcenter.blogspot.in/2012/06/1996-jeep-grand-cherokee-engine-will.html

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Mitsubishi will not start

http://www.howtorepairguide.com

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These will help.

Thanks.

call 718-316-5935--eddy and all cadillac electrical problems are solved

It can take 70psi to start a vortec engine cold. It should start on starting fluid tho.
You might want to look at a couple of spark plugs to see if they are in good enough condition to run. The spark could be weak under compression if the plugs are worn.

Cleaning the fuel lines by air and blows air on fuel filter. cleaning too the spark plugs will do good for your saving.

I am currently having the exact same problem with my '05 duramax. today for the first time it even died while driving and then would not restart for 5 minutes. If you figure this out please let me know. My email is [email protected]
Im taking mine back in to have it looked at tomorrow.

Sounds like the cable is dry and needs lubricating, sometimes you can take off the gearbox end and pour in some oil.

Have you replaced the ignition switch? Passkey wire broken can cause no start problem.