HELP!! - Coolant Overflow filling up and not returning - WTF?

Quote:

---

Originally Posted by Lukezen27

its the quality of the OEM units and the size also makes a difference

hence why I said to use stock cat and exhaust

---

Farkk..

Dun have any of those.. Oh wells see how it goes

No replacement for displacement

Tune the car at 14.7:1 or slightly leaner to get as much heat into the cat, but if you don't heat it up enough and you run that mixture you might fail based on NOx readings.

Cat placement plays a big part, with our K series headers it's hard to get a good cat placement, but try get it as close to the engine as possible...

a bad radiator cap will cause one to do this,it allows too much of he coolant complete by the cap,and works the over circulation jug over on it,id change that first,its also the most affordable,if that doesn't help it,check the temperature i it,this may be going bad,if that doesn't help it have a store look at it for you,the rad cap may fix this though and they only price a few dollars,at the toughest it probably could be would be a bad rad or a water push,good success with it. you can prevent it doing some pressure test. here are some guides lines on how to pressure test a radiator and cap.

Thanks dude. But after 3 diff types of Rcaps, 2 working rads...all the tests were done and result = cracked sleeve.

Mods pls close this as the problem was found.

Closed as requested