you asked about the v4 engine but the contour had a v6 or an inline 4 but no v4 ,,,,plugs on these cars are under the valve cover lid and should take only a few bolts holding it on. but if you've never done this before leave it to a pro since they can be tricky as the spark plug can pull its threads out ...
1.13 mm or .050 That's the gap my plugs are running at on my '95 Zetec (Motorcraft plugs)
On a 1995 Ford Contour : According to one of Ford's websites : The spark plugs on the 2.0 liter four cylinder are gapped at ( .050 inch ) For the 2.5 liter V6 ( .054 inch spark plug gap )
.050
you don't, you buy a chevy.
I WOULD SUSPECT THAT ONE OF THE PLUG WIRES IS NOT MAKING CONTACT OR IS NOW BROKEN.
You have bad spark plugs and or cap and rotor
which engine?
There are a couple of reasons why a 1999 Ford Contour may misfire. The spark plugs may need changed or the coil pack may be bad.
It unscrews just like a spark plug.
heater will not blow on a 1996 ford contour
A Ford Taurus and Contour are a couple. (1997 Taurus with the 3.0 liter engine & 2000 Contour with the 2.8 liter engine)
Change air filter and clean or replace spark plugs