My 1994 camaro v6 had a check engine light when i bought it and i was told that it was a egr valve. I got the code scanned and the guy said that there were no new codes so he reset the thing so the light wouldnt come on. I also found reciepts from the owner before that who had changed the egr valve so i figured it might of been a previous code. The check engine light came on again and i dont know what its for. Could it be a egr valve. I also was wondering i got the left from tie rod end replaced so should i have the tires balanced or alignment on the tire.

 

they should have realigned the front after installing the tierod ends. yes it should be done. you will need to have it scanned for codes to see what it is. make sure its a scanner that will work on the 94. that can be an issue in itself.

 

align and balance or just align?.

 

if its shimmyin or shaken then they may need it but its not caused from changin the tire rod ends.

 

Another question is how do i flush the whole coolant. And how much oil should i buy for a oil change, or is it easier to just bring it in to change the oil.

 

Your owners manual will tell you how much oil it takes for an oil change. Coolant flushes are fairly straight forward. Buy one of those prestone back flush kits, it has instructions.