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40th Anniversary It finally happened.... the opti went south...

1993 40th Anniversary Corvette Topic
C

CLABORN1960

Guest
3 weeks ago I was driving back to work, going up a hill and the car just stuttered then stopped. Couldn't restart it, it would start and then just "pant" couldn't give it gas then it would cut off. Had it flatbedded to my mechanic.

Initially he indicated that it had jumped time but wasn't sure why. He checked the computer, speculated that maybe the timing chain might be the problem. He was finally got the front off, and discovered that the waterpump had been leaking for some time into the opti.... eventually there was enough moisture to cause it to jump time and stop the car. He indicated that from the looks of the opti it had been getting water from the waterpump for 6 months or longer....

It was the original opti..... the car has 185,000 miles on it..... here's hoping for another 185k on the new opti....
 

bossvette

Gone but not forgotten
Joined
May 19, 2003
Messages
3,233
Location
West Unity Ohio
Corvette
1968 1997
My Wife's Impala SS just was flat bedded home last night and I suspect the Opti but will settle for fuel fillter or pump. It is doing the same as yours was.
Autotap shows no codes I will be putting a fuel pressure gage on it before tearing into the opti. Will you be going with a stock opti or one of the newer aftermarket ones?

ps 185000 :upthumbs I love it when someone drives their Vette and is not afraid of putting miles on it :upthumbs
 
C

CLABORN1960

Guest
my mechanic believes in genuine GM parts unless there is a reason not to go that way... so since its just opti #2, I am going to follow his recommendation..... btw I think the waterpump that went bad was a rebuilt one I had another mechanic put on about 2 yrs ago.... no wonder the price for that was cheap....
 

bossvette

Gone but not forgotten
Joined
May 19, 2003
Messages
3,233
Location
West Unity Ohio
Corvette
1968 1997
I don't think mine is the opti I replaced the filter and it starts but I still don't have proper pressure. My problem is my hearing is not good enough to hear the pump running :L so I have to wait for my Wife to come home for further tests.

My Wife buys gas by price lowest price doesn't matter if its no name crap I use Sunoco 94 in my Vette; the only problems with her car have been fuel related :L no wonder
 

Vanity Plate Bob

Well-known member
Joined
Apr 8, 2002
Messages
722
Location
Johnstown, Pa, USA
Grandaughters Cavalier carried on. Start stop go no go.
After crank balancer? and a new fuel pump it was discovered the ignition was bad. Only getting 6 volts at times. $700. latr it's ok.
 

93Rubie

Well-known member
Joined
Jul 19, 2009
Messages
777
Location
PA
Corvette
1993 Ruby Red 40th Anniversary Coupe
Gotta, love it, when not leaked upon the Opti-Spark that everybody hates keeps kicken till 185K, that LT1 and Corvette Durability for you. :thumb

I second going with GM parts on this, I think GM Junkie recommends this as well, b/c some of the aftermarket units have been known to give trouble. The ACDelco units rarely give trouble.
 
C

CLABORN1960

Guest
Just got the original starter replaced last week..... 256k on the clock and still going strong....
 

tcxd40

Well-known member
Joined
Mar 7, 2007
Messages
387
Location
Pittsburgh
Corvette
(2) Black '93s, purple '81, '69 vintage racer
Gotta, love it, when not leaked upon the Opti-Spark that everybody hates keeps kicken till 185K, that LT1 and Corvette Durability for you. :thumb

I second going with GM parts on this, I think GM Junkie recommends this as well, b/c some of the aftermarket units have been known to give trouble. The ACDelco units rarely give trouble.


Correct me if I'm wrong, GM no longer makes the optispark unit, at least according to my dealer, out of production for several years.
 

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