Engine No Power, Shaking, Timing

92GTVert_

New Member
Feb 2, 2016
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I've been needing help with my 5.0, it starts and runs but there's a huge power loss. The motor shakes tremendously when the gas is applied and it goes over 2.5k rpms it goes back to normal, my harmonic balancer has a lot of play also, cars is mostly stock has a msd distributor which was put on by old owner and he claims he did something with the timing also. Stock headers and exhaust but has dumps. Really need help getting it back to full potential. Thanks guys !
 
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jrichker

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If the harmonic balancer has any looseness or play at all, it needs to be replaced. Failure to do so can result in serious engine damage.
 

92GTVert_

New Member
Feb 2, 2016
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Ok thanks , I will do so as soon as possible. Do u think that's why it has such low power?
 

stykthyn

I want to measure mine. It doesn't look that tall.
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Jul 6, 2006
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In all probability if it's loose it has spun and your timing is now off. Stop driving the car immediately. Replace the balancer, verify timing and report back.
 
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