Question about 1990 Oldsmobile Cutlass Ciera

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1990 cutlass ciera w/3300 v6, won't start, fuel presure is 45psi, has good spark, has new crank sensor. still won't start, what next.

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If it has spark, the crank sensor is working. If the fuel pressure is 45psi, that's good.

Are the injectors pulsing controlled by the computer?

Posted on Aug 01, 2010

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Check for shorted out fuel injectors, OHM each injector I believe they should have more than 2 ohms less than that they will short out and not allow car to start.

Posted on Feb 28, 2012

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1991 Cutlass ceirra 3300 ,runs fine for short time. starts running rough,then dies/will not start again.changed fuel filter, then tested fuel pump.fuel pressure is good.what next ?


Check for spark when it won't start. If you have spark, might be your fuel pump relay, maybe the map sensor. If no spark, check another or all plug wires. If ignition isn't working, it could be Crankshaft Position sensor, Camshaft position sensor (or pick-up coil), ignition control module, coils, pcm, or the wiring associated with them. PCM determines spark timing after inputs from crank and can sensors, and sends ground signal to ignition module, cutting primary voltage to coils, initiating spark or high voltage from coil to sparkplug. All these parts have to be working right for ignition. All can be tested too. You'd need a digital volt ohm meter (DVOM) and a repair manual for your car with the test procedures. That Mitchell alldata-diy site has a special on subscriptions, pretty reasonable for a 1 month subscription, and excellent info and troubleshooting flow charts, wiring diagrams, etc.

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I have 1995 olds cutlass cierra s with 3300 v6, dies when warm, rest for about 15 min and starts up till warm. replaced ignition module, o2 sensor, fuel filter, fuel pump, air filter. i've worn out my...


the most common problem next is the crank sensor. use a heat light to warm up the sensor to see if it is that. by using a heat light you can narrow down what part has the temperature glitch. Don't forget to try the engine computer.

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1989 oldsmobile ciera no spark unit cranks fine good fuel presure


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1 Answer

In which area of the engine would I be able to find crank sensor


CRANKSHAFT POSITION SENSOR

Fig. 8 Ignition Coil Module Assy 2.5L/4-151 42188531 The Crankshaft Position Sensor is mounted remotely on the bottom side of the ignition module.

RH Side Of Engine. 42277335

Front RH Side Of Engine

Applicable to: Cutlass Ciera & Cutlass Cruiser w/V6-231/3.3L

Dec 11, 2009 | 1991 Oldsmobile Cutlass Ciera

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