Question about 1990 Oldsmobile Cutlass Ciera
(3.3L) After help from last weekend, did replace with new fuel pump; started right up. Next day & subsequent days, after driving, would go to restart & would randonly start to fire-up, but wouldn't start. Waited after going on assumption of flooding and would restart. One time, felt fuel from carburator & was warm. That time engine got to about 200 degrees. Replaced thermostat & fan motor. Again started right up, but next day after short trip to school. Would not start again. Not flooded, Not warm. No fuel in carburtor this time. After reading manual & checking computer messages all weekend, still dumbfounded. Fuel pump pressurizes system, lots of spark, but will only fire with starter fluid. Is there a sensor that is not letting fuel go through to start it? And if so, where is the sensor. What does the trottle positioning sensor look like? What does the pressure regulator look like?
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Posted on Jan 02, 2017
SOURCE: turns over, has spark fuel,if
Pressure loss may be at fuel lines or injectors (could be very minor to take all night to lose pressure). Would have thought pump, but you replaced it. Have you checked the fuel pressure? It would be interesting to see how long it would take to build up in a morning start.
Posted on Aug 17, 2009
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