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

93 Firebird problem with video .

Old Oct 9, 2016 | 11:47 AM
  #1  
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Default 93 Firebird problem with video .

Hello everyone.
It seems like I have an issue.
Can you please watch the video and tell me what is the problem.
Thank You.
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Old Oct 12, 2016 | 04:52 PM
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Originally Posted by retrofirebird
Hello everyone.
It seems like I have an issue.
Can you please watch the video and tell me what is the problem.
Thank You.
https://youtu.be/_3AO_1P-aY8
Assuming it's a 93, check for codes.



http://www.troublecodes.net/gm/


http://shbox.com/1/Dtcs.htm
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Old Oct 12, 2016 | 05:00 PM
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From: Jackstandican
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Initially, my thoughts are it's not good. What RPM was the engine at? Seems high.
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Old Oct 12, 2016 | 06:40 PM
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Flat cam or lifter bleeding down allowing the valve not to close properlt
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Old Oct 13, 2016 | 10:48 AM
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Sounds like she's missing. Check you plugs, plug wires, and Optispark. Also check for a leaking fuel injector.

I had a 95 Impala that sounded like that after sitting for a bit. It wound up be rust that had built up on the valves. I just cracked the throttle for a bit and the engine knocked everything loose and ran fine afterwards.
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Old Oct 13, 2016 | 04:04 PM
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Originally Posted by ShovelMan
​​​​​

i ​​dont have​ any trouble code .
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Old Oct 13, 2016 | 04:08 PM
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Originally Posted by SS RRR
Initially, my thoughts are it's not good. What RPM was the engine at? Seems high.
Tanks for your reply.
my idle is 1500 rpm. i know its high. But i dont know how to decreise it.

Did you notice the popping sounds ?
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Old Oct 13, 2016 | 04:10 PM
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Originally Posted by cookseyb
Flat cam or lifter bleeding down allowing the valve not to close properlt
thanks for your reply. Where do you want to see ?
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Old Oct 13, 2016 | 04:13 PM
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Originally Posted by MuhThugga
Sounds like she's missing. Check you plugs, plug wires, and Optispark. Also check for a leaking fuel injector.

I had a 95 Impala that sounded like that after sitting for a bit. It wound up be rust that had built up on the valves. I just cracked the throttle for a bit and the engine knocked everything loose and ran fine afterwards.
thank for your reply.
Also she has a weak accerelation. And popping in egsaust.
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Old Oct 13, 2016 | 04:38 PM
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From: Jackstandican
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Originally Posted by retrofirebird
Tanks for your reply.
my idle is 1500 rpm. i know its high. But i dont know how to decreise it.

Did you notice the popping sounds ?
I'd like to see/hear video taken from under the hood. Can you give a history of the car and mods and when this noise started?
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