help

[gaelic]

i have a 95 which wont start its a 4.3 vortec engine i tried to turn the engine over manually but it wont budge any ideas how to get it to move would really help thanks

[Rmbodie]

When you say manually , you mean with a large socket on the front of the main crank at the harmonic balancer , right ? You can remove all the plugs to eliminate the posibility of hydralock . that would be my next step . If you can't turn it then , You have either a component on the assessory drive locked up , a bearing spun and locked on the crank , or the starter is engaged and locked with the flywheel . I think I covered all the posibilities.
Hope this helps. Rob

[gaelic]

i removed all the plugs and it still wont budge what else would you suggest

[Brian R.]

Spray some penetrating oil (not WD40) into the cylinders through the spark plug holes, let it sit overnight. You can then put a wooden dowel into the cylinders and gently tap the top of the pistons by tapping the dowel with a hammer to try and free the rings (if that is your problem).

Good luck.

[herkyhawki]

Originally Posted by gaelic

i removed all the plugs and it still wont budge what else would you suggest

and take the belt off

[gaelic]

thanks guys i will try that on saturday hopefully it will work

[y2kblazer]

has the truck been sitting- if so how long, or did it just not turn over one day?

[gaelic]

its been sitting for about six months

[Rmbodie]

That would have been good info at the beginning. Probably locked because of rust . Garage or outside storage ? no matter, Cylinder walls probably coated with rust

[y2kblazer]

or..........dead battery?............

[billibong]

Dead battery wouldn't matter if he were trying to manually turn the crank.
Try what Brian R. said, and spray it down with a penetrating oil. But I would have to agree with Rmbodie, it is probably rusted up.