Having cooling issues. Car runs hot and gets close to overheating at lights so I'm forced to turn off when idle for too long. No leaks to be seen yet I'm losing coolant. It's not blowing white smoke but when it starts to rise in temp, you can smell burning coolant. Replaced engine oil and it was clean. Any ideas????
Coolant disappearing
- Thread starter Newby101
- Start date
Wrongwayislost77
New member
LIM gaskets maybe? A small amount of coolant over time won't be visible, but it will add up.
Wrongwayislost77
New member
If the leak persists, it will clog the coolant passages. That and Dex-cool make for a lethal combo. If enough gets into your oil, it'll be lights out.
This isn't a 3800, but you get the picture.
This isn't a 3800, but you get the picture.
Last edited:
Scottydoggs
Killa Bee
your thermostat may be shot, try changing it. also flush your coolant and bleed the system with the brass screw on top of the t-stat housing.
and the water pump will not just quit working unless its seized, or on its way to being seized, and then it would squeal like a pig. when they go bad they leak from the under the snout behind the pulley, there's a weep hole that it leaks from. at first it leaks a little, and as you let it go they leak a lot, enough to lose coolant and then over heat.
and the water pump will not just quit working unless its seized, or on its way to being seized, and then it would squeal like a pig. when they go bad they leak from the under the snout behind the pulley, there's a weep hole that it leaks from. at first it leaks a little, and as you let it go they leak a lot, enough to lose coolant and then over heat.
Sorry but tha lim is from a 60 degree v6 3100-3400 model not the same engine at all. The most common leak on the 90 degree 3800 is the uim gasket. The reason being is the egr pipe goes thru the lim and into the plastic uim. They sarround this pipe with coolant to keep it cool but over time degrades the gasket. The other thing you can check is to see ifd the head gaskets are leaking compression gas into coolant system pressurizing coolant system blowing coolant all over from the overflow bottle.
blueguy
The Blue One
Wut.
No guy.
Head gaskets NEVER go bad on these cars unless your running a trillion psi of boost.
The UIM's go bad because they get hot...but the coolant issue is in the LIM...where the dexsludge eats the factory plastic gaskets. That is why you get the Aluminum replacements. It has nothing to do with the EGR...either.
Wrongwayislost77
New member
I posted those pics to display an example of what coolant mixed with oil looks like.
The LIM gaskets between the Lower Intake Manifold and the Heads on a Series II 3800 like to leak after a while and they will cause similar damage and buildup.
The LIM gaskets between the Lower Intake Manifold and the Heads on a Series II 3800 like to leak after a while and they will cause similar damage and buildup.
JoshsGTP
I GIVES MONIEZ
:th_strobe1: NOOB FAIL! NOOB FAIL! :th_strobe1:
blueguy
The Blue One
MyPrixGT06
New member
I'm having the same problem. How do I check if the LIM gasket is back?
Scottydoggs
Killa Bee
my guess is you meant How do I check if the lim is BAD?
if thats what you asked, you can have the system pressure tested to see if it holds pressure, or buy a tester. like this Mityvac MV4560 Radiator/Cooling System and Pressure Test Kit
MyPrixGT06
New member
I already know I'm leaking though or I wouldn't have to keep adding coolant