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

Bad ground?

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Old Nov 15, 2003 | 06:23 PM
  #1  
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Default Bad ground?

:nopity Engine hard to start if up to temp. and digital dash works when it wants to. What could be wrong, cant seem to find battery to engine ground.
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Old Nov 15, 2003 | 06:25 PM
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Default Re: Bad ground? (redfast)

what year?

get a copy of a helms manual. It is the only way you will find this on your own.
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Old Nov 15, 2003 | 06:34 PM
  #3  
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Default Re: Bad ground? (bogus)

The car is an 85 with a L98 and a 4+3
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Old Nov 15, 2003 | 06:55 PM
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Default Re: Bad ground? (redfast)

What do you mean by hard to start? Does the starter crank the engine but it won't catch and run or doesn't the starter crank the engine? Is the dash just dark but the dash instruments work and can be seen if you shine a flashlight on them? Need more info. The battery ground goes to the frame and a wire goes from the frame connection to the rear of the left head.
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Old Nov 15, 2003 | 06:58 PM
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Default Re: Bad ground? (redfast)

The car is an 85 with a L98 and a 4+3
Yes :iagree: where are ALL OF the grounds for an 85?

I am just getting ready to put the "ground demon" to rest for good by checking all of them since I have my dash out changing the heater core.

Whenever there is a problem they always say "its the ground/check the grounds"
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Old Nov 16, 2003 | 06:50 PM
  #6  
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Default Re: Bad ground? (ld85)

TTT
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Old Nov 16, 2003 | 11:09 PM
  #7  
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Default Re: Bad ground? (redfast)

The grounds on my 86 are on the engine on the drivers side down under the exhaust manafold really hard to get at my boy jacked the car up and did it from under :crazy:
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Old Nov 17, 2003 | 01:22 AM
  #8  
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Default Re: Bad ground? (wirenut3)

The grounds on my 86 are on the engine on the drivers side down under the exhaust manafold really hard to get at my boy jacked the car up and did it from under :crazy:

Excellent and thanks, I know about those grounds for sure, I did not know if there were more grounds in the car cabin or not.
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Old Nov 17, 2003 | 01:48 AM
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From: Brisbane, Australia 1985 Coupe
Default Re: Bad ground? (redfast)

Fixed a similar problem with my '85 last weekend. It would hardly crank over when hot (like the battery was flat) - I replaced the earth lead and no more problems.

To check if it the earth lead, connect a jumper cable from the -ve terminal to the engine and if it starts easier then that is the culprit.

:cheers:


[Modified by Chris O', 4:48 PM 11/17/2003]
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