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Topic: VETTE DIES WHEN HOT

in Forum: C3 Engines


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VETTE DIES WHEN HOT

Posted: 6/29/07 3:20pm Message 1 of 8
Snateman
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Jamestown, ND - USA
Joined: 3/2/2007
Posts: 30
Vette(s): 1979 Corvette Black on Black
My '79 sputters then dies after it heats up and can't be restarted until it cools down.  This is a new problem.  What's up?


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VETTE DIES WHEN HOT

Posted: 6/29/07 7:23pm Message 2 of 8
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Adams' Apple
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Duncanville, TX - USA
Joined: 11/8/2003
Posts: 20214
Vette(s): #1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas
Sounds like a classic case of the ignition module taking a dump, or the coil.

It's possible tho, that you are getting some not so good fuel, and it's percolating in the fuel lines(vapor lock), but...today's gas doesn't really lend itself to that...not volatile enough.

Then again...
It could be a simple matter of a derty fuel filter/sock in the tank.


Joel Adams
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"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"

VETTE DIES WHEN HOT

Posted: 6/30/07 6:36am Message 3 of 8
Snateman
Former Member
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Jamestown, ND - USA
Joined: 3/2/2007
Posts: 30
Vette(s): 1979 Corvette Black on Black
It is getting fuel, but I think you are right about the ignition.  I pulled the cap and the plastic was black around where the rotor makes contact with the coil.  There were also some metal shaving so I'm pretty sure there was some arcing going on.  I am going to round up a new rotor and see if it will go or does a guy just replace the cap, coil, and rotor at the same time and be done with it?


VETTE DIES WHEN HOT

Posted: 6/30/07 6:51am Message 4 of 8
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johnu
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Scottsdale, AZ - USA
Joined: 5/23/2007
Posts: 617
Vette(s): 1981 Corvette Two-Tone Claret color, 4 spd, C7 Vert

Like Adam said...."Ignition Module".... left side of distributor under the rotor. Two small hex bolts hold it on with wiring on both ends.   I've had two bad ones within months of one another.  The current one has lasted a year now. 




      Only 34 years together

VETTE DIES WHEN HOT

Posted: 6/30/07 12:07pm Message 5 of 8
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aceinthehole
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Manteca, CA - USA
Joined: 11/20/2005
Posts: 3623
Vette(s): 1978,two tone,Metalic Rootbeer & gold 1975 L48 4 speed
Yep, It certainly does display the classic symptoms of a faulty module. But , I used to be able to get mine down the road a ways before it shut down LOL.


Jimmy B.
Just can't wait to get on the road again.

 
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VETTE DIES WHEN HOT

Posted: 6/30/07 11:19pm Message 6 of 8
Snateman
Former Member
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Jamestown, ND - USA
Joined: 3/2/2007
Posts: 30
Vette(s): 1979 Corvette Black on Black
I went ahead and replaced the cap, coil, rotor, and module and it runs better than it ever did.  It's got a 100,000 miles on it so why not do it all.  Thanks for all the help guys.


VETTE DIES WHEN HOT

Posted: 7/1/07 6:56am Message 7 of 8
ranger3
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North Charleston, SC - USA
Joined: 3/20/2004
Posts: 4176
Vette(s): 1975 L48 AT AC T-top
Good call Snateman...I agree. Those new parts are normal "wear" items and replacing them now is a little insurance and peace of mind.

Scott


VETTE DIES WHEN HOT

Posted: 7/1/07 6:58am Message 8 of 8
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Adams' Apple
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Duncanville, TX - USA
Joined: 11/8/2003
Posts: 20214
Vette(s): #1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas
Kewl! Glad ya got 'er going!

Also, to answer the other question, I think it's best to replace the cap/coil/rotor at the same time on HEI systems. Replacing the ign. module at the same time would really be an option, unless you know there is a problem with it.


Joel Adams
C3VR Lifetime Member #56    
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(click for Texas-sized view!)             NCRS

"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"

in Forum: C3 Engines


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