I was driving my car the other day and 5 minutes into the drive the Car acted if it were running on 4 cylinders all of a sudden. No back fire, or miss. Just loss of power, it ran but it sounded like the exhaust was plugged up. Could this be the result of the Opti Spark taking a dump? I own a 1985 C4
Vette(s): 1993 Chevrolet Corvette Base Edition. Exterior Color is Polo Green with Tan interior. 5.7 LT-1 V-8 with 4-speed automatic transmission.
I agree with CaledoniaBrian. You might have a slightly clogged catalytic converter. Be grateful that you don't have an LT1 like I do. I just had my Opti-Spark distributor replaced on my 1993 Base model. Along with a new water pump it cost me well over $1900 in parts and labor.
Well fellow C4 er. Have a 93' LT1 , I'm not a pro. By any stretch of imagination. Mine was leaking oil at back left corner of intake manifold (commen) .did a little research ( you-tube) and took it on over last winter , gasket kit cost $. 39.00 and after removal of throttle body, air intake, water pump, drain cooling system opti-spark and damping puller . The last opsticle was the oil pan , had the car up on jack-stands, about 20 inches , tires where about 8 inches off ground , was able to drop oil pan start replacing oil pan gasket and the rest was reversal of tear down steps , worked out well ! Have sum faith in yourself bro you can do it , if it ever happens again , total job was about $50 bucks good luck
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