1990 sevile 4.5
kgriggs75
10-04-2008, 03:30 PM
Customer has a 90 seville with the 4.5. the car is dying at red lights and while slowing down from highway speed. there are no ecm codes in the computer. I did notice that the spark degree was changing quite rapidly right before it would die.
DFBonnett
10-05-2008, 10:12 AM
Dirty throttle body? Bad or dirty EGR valve or solenoid?
kgriggs75
10-08-2008, 12:23 PM
ok pulled the throttle body. lots of carbon on the butterfly valves. lots in the bottom of the intake.
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