missing on cold starts
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Senior User
Joined: Sep 2007
Posts: 186
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missing on cold starts
i have a 94 explorer and when i start on cold starts he engine misses alittle and i replaced the spark plugs and wires and that seemed to help alittle bit but once its warmed up its fine. i ran seafoam on a full tank. can it be an injector issure or an oxygen sensor?
Lead Driver
Joined: May 2003
Posts: 9,303
Likes: 48
From: Lyndonville, Vermont
O2 sensor won't be your problem..Leaky fuel injector can cause a cyl to run rich upon start...Also coolant leaking into cyl. Has your coolant level been dropping? Vacuum leak in an area that when heats up closes up....not much weight on that one. Fuel pressure maybe pump starting to go bad. Test pressure.
Dick
Dick
Cargo Master
Joined: Aug 2003
Posts: 3,263
Likes: 92
From: BC Canada
Originally Posted by AC94EXPLORER
does loose coolant but thats because of a blown head gasket issue but its blown on the side. im adding blue devil in this thursday cause im driving it from wa to ca and back.
