Question about 1996 Cadillac DeVille

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1996 coupe de ville engine turns over won't start it has fuel and igniton won't run it just shut off not immediately started to slow down after pulling away from a traffic light and then shut down

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1996 caddy, the first thing i would do is to have the computer scanned to see if there are any codes stored. the code help alot in pin pointing the problem. for example the computer is always watching all sensors and input and out sensors and when something fails or is out of specs then the computer stores a code for that component, could be a crank sensor or o2 sensor or even a loose gas cap, these code if any stored is where i would start frist. there are many auto part stores that scan these codes and give you a print out , you say theres spark and fuel but how much fuel pressure is there. You will need to check the fuel pressure at valve on injector rail, you could have fuel but with low pressure car will not start and if it does it will shut down or stall when giving it gas. start with a fuel gauge and make sure theres enough pressure, this problem sounds like a bad pump.

Posted on Mar 20, 2011

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2002 malibu 3100 v-6 won't start, getting fuel and fire to all cylinders


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You'll need a battery charger to do this. Hook up the battery charger to the battery.

Place the key in the igniton and attempt to start. Let the key return to the run postion and leave it there untill the light stops flashing. Turn the key off

Turn the key on (do not try to start) and wait for the light to stop flashing again.

turn the key off and then try to start the vehicle.

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1 Answer

My 96 yukon wil not start. Sounds like it will crank over but won't. It is not the fuel. I changed the ignition coil still won't start.


try spraying some carb cleaner into a vaccum hose and see if it will run. If so then you have ignition but no fuel delivery. If not then you have an ignition problem. make sure you hear the fuel pump hum when you turn the key to the run position. It should run for +/- 5 seconds then shut off. remove gas cap and listen for fuel pump operation through the fill hole. If you can hear the pump then you have a fuel injection issue. If the engine starts and runs for a few seconds then shuts off then you can suspect the crank or cam position sensor. The fuel pump runs through the oil pressure switch which could also be an issue.

Are you able to start the truck with application of the gas pedal?

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1 Answer

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1 Answer

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Could be ignition control module or a fuel delivery problem..check module connector to make sure it is properly attached and check fuel preesure when vehicle is warm...

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1 Answer

My 1992 Coup de ville cuts out when it gets down to 8 gallons or less. Why? Other wise runs great. Fuel pump maybe? Thank you, Mark D. Johnston


a fuel pressure gauge to check the pressure sort of a special tool a fuel filter may cause something along these line of symptoms but it would be at any fuel level for the filter. The only way to really know is the pressure when it happens

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