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1996 993 C4 Cabriolet Electrical Cut Out

Electrical and Electronic

Vehicle Information: Model: 993 C4; Year: 1996; Body Type: Cabriolet; Total Mileage: 40,000;

I took my wife to dinner and left the top down. during dinner a few inches of rain fell. We drove home and the next morning the moisture had soaked through the seats and cooked the four boxes underneath.My mechanic replaced the immoblizer, cruise control and DME boxes and took it to the dealer ([name withheld] Indpls) for programming. The dealer worked on it and called saying that the battery was dead. Replaced battery got it started but then it died. After being totally dissatisfied with dealer we shipped it to Stoddard who found that the DME was misprogrammed for a coupe not a Cabriolet and was dead. they replaced it and returned it to Indpls.Works well except for frequent electrical cut out at random times. The lights flicker and the radio shuts off. Cleaned all grounds (except two under dash) and replaced alternator. Computer diagnosis shows no fault codes other than voltage spikes (downward). My mechanic (at Advanced Motor Imports) and Stoddard and puzzled. I won't even ask local authorized dealer (Wood).please advise.Region: IndianaTotal Mileage: 40,000Car Use: Combination Street and Track

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