Here's my problem....I have a 1997 GT 4.6L SOHC. About a month ago I started to notice that my radiator had this thick, whitish, brownish goop inside of it. I replaced the radiator cause it needed to be done anyway.I know the brown goop stuff is from an internal leakage problem.
I'm constantly having to put oil in the car. I talked to a few people & here are my options.
-Blown Head Gasket
-Warped Intake Manifold
-Busted Internal Coolant Line
-Cracked Crank Case
The car has no outside leaks
I don't want to tear apart the top end of my motor unless I have to. If anyone knows any ideas please help!

 

do a pressure test of the radiator system if that fails you can try some block seal additive or replace the head gasket. oh and replace your thermostat. That is where i would start.

 

Stop leak additive is ghetto and just patching the problem and not solving the problem... You have oil in your coolant, replacing the radiator did nothing, since you have been driving the car it probably isnt a blown head gasket, otherwise you probably would have hydro locked the motor by now... i say bad intake manifold gasket. you will want to fully flush your radiator several times after fixing it to get rid of the oil.

 

Auto or manual?

 

Automatic

 

Could be a bad head gasket or a bad tranny cooler (not likely).I say head gasket.

 

I don't think it could stay on the road too long with a blown head gasket. I would start at the intake manifold also. Is the motor all stock? The intake manifold gasket is really easy to replace and could be the problem, especially if someone has replaced it before.

 

The motor itself is all stock. I don't think it's a head gasket either cause I drove it around for a while before I noticed a problem. I also don't think it's a head gasket cause I have no smoke out of my exhaust, I have no loss of power, & I drained the oil recently & I have none of the white/brown goop in my oil or any water in my oil either. The oil looked & smelled the way oil should. Clean as can be.
I did recently start tearing down my motor to get to my Intake Gaskets. I'm going to replace both of them but I'm wondering if anyone knows how strong these stupid hard plastic intakes are? Should I repalce the whole Manifold to save me some trouble? I don't want to fix the gaskets, put it back together, & then have a problem with manifold itself. If you think I'll be ok with the stock manifold then I'll save myself some money. I just want to know if I should replace everything (manifold & gaskets). Please help soon!! I miss driving my Pony!!!