Question about 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??
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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Posted on Jan 02, 2017
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
Posted on Oct 06, 2008
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.
Preston Computer Services
Posted on May 21, 2011
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