C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

intermitten electrical

Old Jul 21, 2015 | 09:29 PM
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Default intermitten electrical

Have 96 collectors edition LT1 / w automatic transmission.
Have been having various electrical glitches, with things like
antenna once in a while wont operate, cabin lights wont go out,
a/c turns on but not off. I believe that I have a ground problem.

The question is where are these ground and what is the best way
to clean them, repair them or replace them??

As always thanks

Pr. Putz
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Old Jul 21, 2015 | 09:56 PM
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You need a copy of the factory service manual. It shows all the grounds.
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Old Jul 25, 2015 | 05:15 PM
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Not for your year, but this should give you a pretty good idea of how many and where. FSM will help on all kinds of electrical and has pics and with other issues! Highly recommended.

G101 - On top of the frame rail under the power brake booster.

G104 - Just above the oil filter on the side of the block.
This is the main engine ground.
Many problems have been solved by cleaning and tightening this connection.


G115 - Just above the horn on the driver's side.


G116 - Just above the horn on the passenger side.
G117 - On the front crossmember next to the power steering reservoir.
G125 - In the passenger side footwell on the door hinge pillar.
G??? - I believe there is also a ground in the driver's side footwell on the door hinge pillar but it is not shown in the shop manual.
G201 - On the frame rail under the air conditioner evaporator housing.
It does not have an arrow in this picture. It's next to splice S128.


G320 - On the driver's door striker pillar next to the rear compartment lamp.

G401 - On the passenger's door striker pillar next to the rear compartment lamp.


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