Question:

 Hi People  I have a very strange problem with my 1994 Explorer XLT.When I start the engine,  after overnight peroid,it runs very rough.After a minute or two ,it runs fine .I checked  plugs,wires, vacum lines,everything seems to be ok .Any suggestions?  Hemlo

Response:

i had the same problem on my 98 had the dealer replace the lower and upper intake gaskets under the new extended warenty. problem solved

Response:

You might have bad oxygen sensors.  They are causing the engine to run too lean when it is cold.

– Hide quoted text — Show quoted text -> Hi People >  I have a very strange problem with my 1994 Explorer XLT.When I start the engine, >  after overnight peroid,it runs very rough.After a minute or two ,it runs fine .I checked >  plugs,wires, vacum lines,everything seems to be ok .Any suggestions? >  Hemlo

Response: