Hey a few weeks ago i got the spark plugs changed on my 05 Scion xa.
I was having a misfire issue. There was oil on the spark plugs... Well this week same issue started happening again. I took the car to the mechanic who informed me that i need the ignition coils changed and a new valve cover gasket. were is there a online spot were i can get the ignition coils at a discount price.

Also if anyone has done this type of repair is it hard to DIY?

thanks

 

trdsparks.com?

 

both repairs should be very easy if you have done anything more than simple tune ups. the valve cover is just a few bolts and the coils come off when you replace the plugs. with the coils you just have to take off the extra harness clip and slap a new one on. if you arent confident in doing it yourself DO NOT feel bad about paying a mechanic to do it. when i was a mechanic i would have people come in all the time with worse problems then what they started with because they let someone work on it who did not know what they were doing just to save a few bucks. in the long run it can come out cheaper if you dont know what you are doing