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Jim, ASE Certified Technician
Category: Cadillac
Satisfied Customers: 1317
Experience:  ASE Certified A6,A8,L1 and California Licensed Smog Technician
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Cadillac Deville: I have a 1998 cadillac deville with 56,000

Customer Question

I have a 1998 cadillac deville with 56,000 miles every now and then the motor just shuts off no warning no check engine light before or after it shuts off no codes after it shuts off I pull over starts rite up and runs great. just anoying what can i do to make this problem go away.I am kinda mechanical

Submitted: 2 years ago.
Category: Cadillac
Expert:  Jim replied 2 years ago.
Over the years we have seen this problem mostly caused by the crankshaft sensor failing. The other problem with have seen is the throttle plate is dirty and need to be cleaned. The first problem is seen more when driving at a steady speed or on acceleration. The second problem is seen more at idle or when you take your foot of the accelerator.