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I have a 1984 Pontiac fierro GT and I was - Cars & Trucks

I have a 1984 Pontiac fierro GT and I was wondering how to unlock the motor that has been sitting for a couple of years now and also I need to know how much will it cost to do it myself??

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  • Cars & Trucks Master
  • 21,873 Answers

There's a good chance the engine will have to be disassembled to get it "un-stuck". It really depends on what has seized.
You could take the belts off and try to turn the crank pulley with a wrench. You could also try pouring liquid wrench into the spark plug holes to soak the piston rings. If it is something on the crank or the camshaft the engine will have to come apart.

Posted on May 10, 2013

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  • stefan wray May 10, 2013

    Thank you see all that was wrong with it at first before it was put up so to say was it needed the front main seal replaced new clutch belt tires and battery and when I put a new battery in it it wouldn't turn over at all so I'm pretty sure it's the motor locked up from sitting do you have any more advise??

  •  Stephen
    Stephen May 11, 2013

    Not really. You would need to make sure the clutch is disengaging so you are not trying to turn the transmission with the starter. Other than that, the engine may be rusted in place.

  • stefan wray May 11, 2013

    Ok so would I have to do what Stephen said to do to get it unrusted in place or would I have to do something else???

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SOURCE: Fierro RH Headlight does not flip up

It could possibly be the relay that's located on the headlight assembly. Good replacements can be found in almost any junkyard Fiero. First, check to be sure the single blue wire is connected. It's on the inboard side of the headlight, and the connection looks like an inline fuse holder. Then turn the headlights on. Using a ballpoint pen so as not to injure your fingers, insert it into one of the holes in the knob atop the motor and turn it clockwise. This should start to raise the headlight. If it doesn't activate and raise upon its own, then it's the relay. If the motor just sits and spins when you turn it on, then it's the gear inside. You can obtain a rebuild kit from www.rodneydickman.com

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vetteman3002
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SOURCE: i lostt the keys to my 86 pontiac fierro, what can

Either replace the ignition tumblers or call a locksmith. A locksmith would probably be cheaper,

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Posted on Feb 01, 2011

jim4984
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SOURCE: I try to move the flywheel to left end right. End

Sounds like the engine is siezed or is suffering from a liquid lock. Liquid lock occurs when one or more of the cylinders becomes filled with fluid. Air / fuel mixture can compress but liquid can not. Check the oil and coolant. If there is any water in the oil or oil in the water, then you most likely have a head problem. Could be simple as bad head gasket or could be cracked head. The only way to truly find out is disassemble the engine.

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www.prestoncomputerservice.com

Posted on May 21, 2011

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I try to move the flywheel to left end right. End don't move for pontiac fierro 1984 what is the problems


Sounds like the engine is siezed or is suffering from a liquid lock. Liquid lock occurs when one or more of the cylinders becomes filled with fluid. Air / fuel mixture can compress but liquid can not. Check the oil and coolant. If there is any water in the oil or oil in the water, then you most likely have a head problem. Could be simple as bad head gasket or could be cracked head. The only way to truly find out is disassemble the engine.

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