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1991 Oldsmobile Ciera

Tiny
SMOORE1971
  • MEMBER
  • 1991 OLDSMOBILE CIERA
Engine Mechanical problem
1991 Oldsmobile Ciera 6 cyl Front Wheel Drive Automatic

this car has a3.3 v6 it will start and run when gas is being sprayed in the intake the fuel pump works I have 43 psi on the fuel rail changed the mass fow sensor, computer and coilpack. Then someone told me to change the crank sensor it started twice put everything back together wont run at all know changed crank sensor again still nothing but it does have spark could it be out of time or what do you think. Please help me Im out of ideas thanks scott
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Monday, November 24th, 2008 AT 9:37 AM

4 Replies

Tiny
RACEFAN966
  • MECHANIC
  • 5,029 POSTS
Ok first will it run if you spray carb clean in the intake still? You said it did but didn't mention if it still does. Do you have fuel coming from the injectors and do you have an injector pulse? Have you check the fuel pump shut off relay? Let me know what you get and we will go from there.
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Monday, November 24th, 2008 AT 11:26 AM
Tiny
SMOORE1971
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We tried running it on starting fluid agian it wont even run that way any-more thanks scott
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Monday, November 24th, 2008 AT 11:47 AM
Tiny
RACEFAN966
  • MECHANIC
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So do you still have spark? If you do then you are missing fuel with would mean that either the fuel pump or fuel pump shut off relay or computer. We need to know if you have an injector pulse too, this will require a noid light.
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Monday, November 24th, 2008 AT 3:09 PM
Tiny
ROGRUS
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If you have fuel pressure and you already replaced the crank sensor and you can't get the engine to start even by spraying fuel or starting fluid in the throttle body I would think that the ignition module would be a suspect. You can usually have it tested for free at the parts store. I still think that you should invest in a spark test light to see if there is spark and a noid light set to see if there is pulse. You can get both of these items for less than $30 at Harbor Freight (my favorite Chinese made supply store)
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Wednesday, December 10th, 2008 AT 8:24 PM

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