mitsuowner1991
10+ Year Contributor
- 304
- 7
- Sep 29, 2009
-
West Keansburg,
New_Jersey
I checked my coolant after A BLT and there was pressure.
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The engine has less then 1000 miles on.. with a new head gasket. Could it be I have to retorq the head down ?Sounds to me like a blown headgasket or a cracked head. Are you over heating or losing coolant at all?
Given your other post about fiav and idle issues id start there. Are coolant lines looped at throttle body?
YesDid you replace the seal in the FIAV?
No. Loop the lines for the coolant. Then do another boost leak test. If air comes out of the coolant nipples on the throttle body you found your problem.If air air leaks from.the fiav then it's bad? I should just loop the lines and get the plate to iliminate it.
So if air comes out of the nipples what is wrong??No. Loop the lines for the coolant. Then do another boost leak test. If air comes out of the coolant nipples on the throttle body you found your problem.
I think all of you troubles lie in the throttle body. It seems to be the common denominator.
Very good suggestion sir.Figuring out mechanical problems is a logical process of elimination. One can miss something if they operate under the assumption that 'the car ran fine before, so it cannot be X', or 'X' was just replaced, so it cannot be 'X'... I've had gaskets, throttle bodies and sensors replaced only to find that it wasn't done properly, or a new part was faulty out of the box...
Also, just because it 'ran fine before', doesn't rule out the possibility of an underlying issue...cars can still run with vacuum leaks and head gasket issues.
So go to AutoZone, rent/borrow the block tester kit and buy the test liquid. It measures combustion gases in the coolant. There should be zero. That should rule out a leaky head gasket or a cracked head.
You should not have a pressurized cooling system just from a boost leak test.
You have something wrong in the fiav assembly. Possible new throttle body necessarySo if air comes out of the nipples what is wrong??
I will test it... So if I loop the coolant lines and delete the fiav.. do I just unplug it and leave the plug ? I noticed when I had the TB off. The bids screw was all the way in. Tight!! I got it out tho.. I might get the block off plate and just delete the fiav..
I think youre confusing what is what on the throttle body. There is no plug for the fiav. There IS a plug for the isc. From all of this discussion I think you have an internal leak in your throttle body associated with the fiav and its associated block off. If you loop the coolant lines then they are no longer connected to the throttle body. Conduct a boost leak test under those conditions and if air comes out of the throttle body coolant fittings you found your air leak and why the coolant system was pressurized. This is where I would start.I will test it... So if I loop the coolant lines and delete the fiav.. do I just unplug it and leave the plug ? I noticed when I had the TB off. The bids screw was all the way in. Tight!! I got it out tho.. I might get the block off plate and just delete the fiav..