Has anyone experienced some discoloration behind the exhaust. I have some yellowing of the paint behind the exhaust pipes. It is very slight and kinda along the back bottom portion of the plastic piece. I guess I am in the boost too much Puttin' out a little too much heat there.

 

What color do you pipes burn? NO pinging? Sounds like you are running alittle lean to do that!! I hope not!!

 

Proabably painted your truck!!!LOL
New an Aggie was buying it.

 

ICULOKN,

I don't have any pinging, the pipes aren't changing color, still get some black splatter on the paint(which should tell me I am still rich enough, right?). I had the truck dynoed with A/F ratios and everything was rich(tuned for 4 #'s and was only running 2# at the time). I did put a 2# lower pulley on after the dyno, but I don't think it would cause it that quick(only about 800 miles since the lower pulley install), would it? I guess I need to get it dynoed quick and get the new A/F ratio's, huh?

Dumb question here, but since I changed to synthetic oil, could that be causing it? I haven't noticed any unusual oil consumption. No puff at start up, etc.

 

RA6870,

Yes, that is it!!! That longhorn knew I would be buying that truck!! Now, that I think about it, it looks like my front fascia(sp) was painted by a longhorn as well. Around the fogs and on the front of the bumber, it looks like the paint didn't quite cover all the primer. It looks like the paint got a little thin in these areas.

Danged ole longhorns