my civic sat for a good 5 months i bought the car , i just got my motor running good, but it shoots out rusty water if i hit 5 grand rpm it will shoot out alot i have only started the car maybe like 10 times since i got it and been workin on the engine, i still havnt even drivin the car on the road i been workin on everythinng trying to get it all together do u think its bc there is watter in my muffler sittin in the bottom bc it was sittin or do u think other wise if u got any suggestions let me know thanks alot , -JASON-

 

I had the same prob. Was the motor out of the car and the down pipe left in? Cause i took my motor out and when we put it back in and my bro started the car it did the same thing.....for like 20mins. Try and run the car and rev it now and then u should be alright!\

 

When you are driving, does it feel like there is some power loss?

 

if its yellow orangy water its mostly likely been sittin in the pipe for a while because if the engine was going bad most likely u'll be smoking white smoke.