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1991 Oldsmobile Cutlass Supreme crank but no start 3.1 has spark and fuel

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Go to to the internet
There is lots of site with detailed info
you can print on how to test for no starts
Put in your car at some point also & ask again
Try You Tube Video also
If you have no vehicle knowledge or don't work
on cars then it doesn't matter

Posted on Jul 28, 2013

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SOURCE: 1991 oldsmobile cutlass supreme

Check for fuses/power/ground to the engine computer (or injector drive computer) whatever the case is.

Spark, fuel pump, and starter all are independant of the fuel injection computer.

Either the computer itself has gone bad, or it is not receiving power or ground, or wiring to the injectors might be bad...

Posted on Aug 28, 2008

csmock132
  • 4669 Answers

SOURCE: 1991 Oldsmobile Cutlass Supreme-there's no spark.

Check the wire from the module to the crank sensor. They go bad. Usually from oil leaks. Is it saturated with oil where it goes under the engine? Also check for power and ground on the two wire plug on the drivers side of the module. It isn't the ecm or anything with it. The ignition system on the 3.1 will work with the ecm unplugged. The ignition system is a stand alone system. It sends signals to the ecm for the fuel injection.

Posted on Jun 18, 2010

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My 1991 cutlass cierra oldsmobile is not firing. i replaced the fuel filter fuel pump and the crank shaft sensor. After that it did start up now it is doing the same thing as before just turning over but...


Hello,

Pull a spark plug wire and put a screw driver in the boot and lay it next to something steel on the engine, do you have a spark?

If so pull a spark plug and see if it is wet, like water wet. Are you low on coolant or loosing it?

These engines have a intake fail issue, the upper intake will not can, but will leak, when it dose it sends coolant down the intake and wets the spark plugs. Crank the engine over a few times before doing this.


The best way to know for sure is to remove the Throttle Body and look inside the intake with a flashlight.

You may be able to get away with removing the screen from the Throttle body with snap ring pliers and opening the butterfly and looking in, but that mesh is very hard to remove and install.

Good luck

Dec 29, 2010 | 1991 Oldsmobile Cutlass Supreme

1 Answer

I put knew head gaskets on 91 3.1 olds cutlass supreme and it cracks but wont start


ok do you have spark? do you have fuel? this is where i would start. if you have both i would check and make sure you put the pushrods in the right place.

Oct 22, 2010 | 1991 Oldsmobile Cutlass Supreme

1 Answer

1991 Oldsmobile Cutlass Supreme-there's no spark. changed module, crank sensor, ecm. pls advise...


Check the wire from the module to the crank sensor. They go bad. Usually from oil leaks. Is it saturated with oil where it goes under the engine? Also check for power and ground on the two wire plug on the drivers side of the module. It isn't the ecm or anything with it. The ignition system on the 3.1 will work with the ecm unplugged. The ignition system is a stand alone system. It sends signals to the ecm for the fuel injection.

Jun 18, 2010 | 1991 Oldsmobile Cutlass Supreme

2 Answers

Falls dead when driving, will restart after awhile


Did you try checking or replacing the coolant sensor? I think you should replace it along with the thermostat. Are there any problems like sputtering or any unusual noises or symptoms? Smoke, anything?

May 06, 2009 | 1991 Oldsmobile Cutlass Supreme

1 Answer

1991 oldsmobile cutlass supreme


Check for fuses/power/ground to the engine computer (or injector drive computer) whatever the case is.

Spark, fuel pump, and starter all are independant of the fuel injection computer.

Either the computer itself has gone bad, or it is not receiving power or ground, or wiring to the injectors might be bad...

Aug 28, 2008 | 1991 Oldsmobile Cutlass Supreme

1 Answer

Changing the spark plug wires


3 on front and 3 on back of engine. the wires coming from coils,on top back of engine,

Aug 09, 2008 | 1991 Oldsmobile Cutlass Supreme

1 Answer

1991 Oldsmobile Cutlass Supreme


have u checked the fuel filter and check to make sure the sparkplug wires are all correct and the wires for the ignition system ned to be checked also

Aug 02, 2008 | 1991 Oldsmobile Cutlass Supreme

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