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73-87 Chevy _ GMC Trucks => Engine/Drivetrain => Topic started by: jptiger on September 12, 2020, 04:48:50 pm

Title: 383 stroker replaced battery
Post by: jptiger on September 12, 2020, 04:48:50 pm

Now engine missing. Will start but sounds terrible and vibration like crazy. Had been running great. Old interstate battery finally died. Replaced with another interstate 1000ca,800cca. 383 stroker w edelbrock tbi. Any help would be greatly appreciated. Truck running terrible.


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Title: Re: 383 stroker replaced battery
Post by: jptiger on September 12, 2020, 04:53:59 pm

Sorry truck is 92 GMC Sierra sle club coupe. Engine has 40k miles


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Title: Re: 383 stroker replaced battery
Post by: JohnnyPopper on September 12, 2020, 07:18:50 pm

It's either ignition, vacuum, or fuel.

Does it rattle at high rpm?

Title: Re: 383 stroker replaced battery
Post by: jptiger on September 13, 2020, 12:57:08 pm

It’s worse at low rpm. Just started. Was fine on way to auto parts store. I replaced batt myself in parking lot. I noticed it immediately after. Like night and day. Don’t know what happened.   Old batt was interstate 800cca/1000ca agm. New is wet interstate with same specs. $100 cheaper. Didn’t need the premium agm. Thanks for responding.


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Title: Re: 383 stroker replaced battery
Post by: jptiger on September 16, 2020, 09:30:03 pm

Never mind. Plug wire came loose and melted against header on driver side. Replacing plug wires. All good now.


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Title: Re: 383 stroker replaced battery
Post by: JohnnyPopper on September 17, 2020, 03:45:10 pm

Glad to hear it was something simple... 8)