Toyota Repair: plugs on 98 tacoma, spark plug wires, head gasket

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Hi real stupid  question where  are the  spark plugs on a  98 toyota  tacoma  located         

         Thank You so much  lisa
Ted  i think  we  have  a  worse  problem  when he  got  home  yesterday the  truck was  acting  like  it  was  not  running  on all cylinders  so  we  did   pull the  plugs  a couple  of  the  plugs  looked  like  they had  antifreeze  on them so we  dried  everything out  replaced  the  plugs  then fired  it up it ran fine  for a  couple of minutes then started  the  same  thing  running  rough  we  were  unsure  as  jim had  steam cleaned  the  engine  the  night  before  and  was unsure  if it was  water  or antifreeze  it did not  smell like  anti freeze  but  did look that way i advised  him not to drive  the truck but  he  is  any  ideas  im thinking  head gasket  or ?   thank you  lisa  

Answer
If there was no unusual smoke from the tailpipe(white steam) I don't think it's a headgasket problem, it is possible that the spark plug wires shorted out, make sure that all the water is gone from the wire connectors and inside the spark plug tubes.
If you supect that it may be a headgasket problem have the toyota dealer do a headgasket test before doing anything.