LT1-LT4 Modifications 1993-97 Gen II Small Block V8

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Old Dec 14, 2011 | 01:29 PM
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I just pick up a 96 Trans am lt1 and it runs and all but it has been sitting for a long time and it has a cylinder 4 misfire. Where should I check first ? Can gas that has been sitting in there cause the misfire? And what is a good way to drain all the old gas?
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Old Dec 14, 2011 | 01:45 PM
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First go to the parts store and buy 8 spark plugs.... tr55 for a stock car. also get a set of plug wires...

next go home and replace these items on your car... making sure the wires are away from the manifolds/hot objects. use of zipties could be required.
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Old Dec 14, 2011 | 02:24 PM
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check cylinders number 4 wire. It may be loose and also check the spark plug to see its condition. How long has it been sitting for without being turned on?
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Old Dec 14, 2011 | 07:27 PM
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the car had a tune up in 2007 and the kid drove it home from the shop and let the car sit because he didnt have money to fix the oil leak.
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Old Dec 15, 2011 | 01:21 PM
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Check number 4 wire and plug then. They may have cracked the insulator installing the plug or not have kept the plug wire clear of the exhaust. On that side another place to check the plug wire is behind the Acc. belt. It gets real close to the belt where it comes off the opti down by the crank and if they didn't take the time to rought the wire up behind it nice and tight it could rub the belt. Also some times they rought those wires to tight and it can actually pull on the boot and unplug the wire from the opti.
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Old Dec 15, 2011 | 04:31 PM
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If it has gas from 07 it will run like ****, how much is in it??
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Old Dec 15, 2011 | 09:00 PM
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full tank i put fuel injector cleaner in it and it didnt help
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Old Dec 15, 2011 | 09:29 PM
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if you have a full tank of 4 year old gas, your going to have issues. any gas that was in the injectors,lines,fuel pump, is probably bad. I would start working on getting all that gas out of the system.
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