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Daughters 1991 Q20 Infiniti will not start at times, try it

Sent to Car Experts October 7 2008 at 2:46 PM
   

Daughters 1991 Q20 Infiniti will not start at times, try it next day it starts. It will quit running while driving suddenly as the rpm and guages also stop working. Wait for a while and it will start. Local mechanics tested the computer board and replaced fuel filters, cleaned injectors and tuned it, but it still stops or fails to start at times. They can't find anything wrong, any ideas? W. Davenport

Customer (name blocked for privacy)
Status:  Closed   Value: $9
Answer
October 7 2008 at 3:00 PM (13 minutes and 43 seconds later)
         
ACCEPTEDCheck Mark
Greetings Customer (name blocked for privacy),

Have the technicians check the crankshaft position sensor...this is a common failure when the vehicle gets hot especially...let car sit awhile and it will start up again...also the fact that you lose the tach signal is a good indication that this is your problem because RPM signal is absent when this sensor fails...If I can be of further assistance please let me know...jeffrey590

I will only be paid if you hit the ACCEPT button after recieving my answer. Please hit ACCEPT so I can be compensated for my expertise...Positive Feedback and Bonuses are greatly appreciated!!Thanx
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jeffrey590 -- ASE Certified Technician -- 99% Positive Feedback on 268 Car Accepts
ASE Master Technician , Saab Master Technician w/ 33 years Dealer Experience in Advanced Level Diag.
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