Spark Plug Help In 94 GMC Sierra 1500?

[Tim]

ok, so i put the plugs in wrong apprently ... the wires are correct on the distributor cap, the rotar is correct, and the plugs were put back in the way i took the old ones out, it wants to fire, but it doesnt, and itll squeak every once in a while while trying to start, my question is, why is it doing this, do the wires on the plug need to be the same way they were before, is there any original way to like, put the plugs all back in and itll fire and start, or do they have to be the same way they came out ??

 

[Molson02536]

ok, so i put the plugs in wrong apprently ... the wires are correct on the distributor cap, the rotar is correct, and the plugs were put back in the way i took the old ones out, it wants to fire, but it doesnt, and itll squeak every once in a while while trying to start, my question is, why is it doing this, do the wires on the plug need to be the same way they were before, is there any original way to like, put the plugs all back in and itll fire and start, or do they have to be the same way they came out ??

You have to install the new spark plug wires in the same firing order, if the firing order is not right. The engine will idle ruff, back fire and most time will not run. At worst you can damage the intake valve and cause upper intake manifold gasket to fail from and bad back fire.

Here is a link to the 4.3 V6 firing order and the V8 firing order, since you did not let us know what size engine you have. Note that the firing order from the V6 and V8's are different. Good luck and be safe.

http://ww2.justanswer.com/uploads/ebrock63/2008-08-24_200104_2008-08-24_195111.png

http://ww2.justanswer.com/uploads/ebrock63/2008-08-24_200346_2008-08-24_195434.png