Question-------------------------Nothing was done before this problem started occuring. It just started. We have then tried the crank sensor. Checked fuses, even big ones under hood, put fuel injector cleaner and dry gas into the car. Just not sure where to go from here. Up until the time the car just dies the car runs great. No spitting or sputtering, jerking, knocking, nothing except for dying out. When it dies it might start up in 15-30 minutes to 3 days. All it will do is roll over. We can hear fuel pump kicking on every time and checked for spark from spark plug wires. Both of those are ok. Cleaned off neg. battery terminal. Still the same thing.
Followup To
Question -
I have a 1992 Buick Lesabre. A couple of months ago I could drive it and turn it off for a while and it wouldn't start too easily. Generally it would start right up with you pushing the gas pedal down. It would run fine. It still does until it deecides to just die out whenever and wherever it wants to. We had codes read we got crank sensor, throttle position sensor, and oxygen sensor. We had a previous car that this happened to so we immediatly changed crank sensor thinking that would cure it. WRONG! Do you think we should replace TPS first or do you think it is the ECM? Please help. Tracy
Answer -
Multiple codes usually mean that there is a broken or loose GROUND wire somewhere in the engine compartment.
Clear ALL the codes and see if any re-appear.
What mechanical work or ANY kind of work has been performed on the vehicle recently ?. As most problems that occur after a recent repair was made can be traced back to the area of where the repair was made as a vacuum line may have been knocked loose or a wire connection came loose, Look around in the area where work was performed.
AnswerCLEAR the codes from the computer and see if ANY of the codes re-appear and let me know IF they do and what CODE(S) appear.
NOTE: Do NOT step on the accelerator pedal when trying to start the vehicle as you are accomplishing NOTHING what-so-ever except causing the computer to mis-read the TPS setting and this may be why you are getting a TPS code. Keep your foot OFF of the accelerator pedal.
1. Pull a spark plug and see if the electrode end is burning a REDDISH color of which is NORMAL.
2. Are you POSITIVE you have spark to ALL the spark plugs ?.
3. Although extremly dangerous, When the engine will NOT start, If you spray a LITTLE starting fluid in the intake manifols will it TRY and start ?.
Let me know. Also, What SIZE engine is in the vehicle ?.
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