today my wife said her 99 blazer was sluggish and felt like it was missing.so i pulled a p0303 code tonight which is cylinder 3 misfire.she said it kinda comes and goes?im gonna start with the plug and work back as the plugs and wires and cap are only 6 months old.the rotor only has maybe 20,000 miles on it.my only problem is what is the firing order on this is it 165432?
if so that means 3 would be drivers side rear?
i had a problem in 2011 where the middle pass. side plug went out twice in a year.thanks for any help.

 

#3 is the center cylinder on the driver side. AC Delco 41-993 plug with a gap of .060"

Not a fun plug to change. Several ways to go about it too. There are some how to's in the DIY section of the forum. I find the easiest way is to disconnect the steering shaft from the steering gear box and move the shaft out of the way. Takes about 5 minutes. DON'T rotate the steering wheel when the shaft is disconnected.

 

Well I got to looking at it tonight after work.when the garage changed the intake gasket they ran the plug wires between the brake booster and the vacuum lines that one had a flat spot rubbed on it and it had tranny fluid on it. It was swelled up also.the tranny fluid is another subject cause I payed him to replace seal between tranny and transfer case and new switch on transfer case.unless the switch went bad already. gonna change the plug yet when my buddy brings me in the special socket to get it out easier.

 

So the misfire if fixed?