White93z34 Posted October 8, 2007 Report Share Posted October 8, 2007 there is an upper intake gasket, plus the upper intake itself. the intake is what fails. also i don't see how he keeps breaking starters, if it dosen't crank it drain the cylinders and try again. Quote Link to comment Share on other sites More sharing options...
Nick1234 Posted October 8, 2007 Report Share Posted October 8, 2007 after he let it run for 5 minutes, i guess the combustion chambers filled with coolant again. the housing is cracking on the starter. since it tries turning the flywheel, and the flywheel won't spin, the housing on the starter cracks. from what i understand. would a bad UIM cause oil to get into the crank case? Quote Link to comment Share on other sites More sharing options...
Crazy K Posted October 8, 2007 Report Share Posted October 8, 2007 would a bad UIM cause oil to get into the crank case? no...... the fact that an engine uses oil is the reason oil is in the crankcase! seriously, the intake is plastic and a hole is melted through it that allows coolant to pour into the engine. Quote Link to comment Share on other sites More sharing options...
White93z34 Posted October 8, 2007 Report Share Posted October 8, 2007 . would a bad UIM cause oil to get into the crank case? oil lives in the crank case... a bad upper intake WILL get antifreeze into the crankcase, cylinders, and generally everywhere. Quote Link to comment Share on other sites More sharing options...
Nick1234 Posted October 8, 2007 Report Share Posted October 8, 2007 would a bad UIM cause oil to get into the crank case? no...... the fact that an engine uses oil is the reason oil is in the crankcase! seriously, the intake is plastic and a hole is melted through it that allows coolant to pour into the engine. i meant coolant getting into the crankcase. you all know knew that. i just replaced my LIM gasket so i mostly understand the top half of a 3.8 But if your Upper manifold fails, how or where does the coolant get into the oil. Inside of the manifold, the runners just go into the combustion chamber. Quote Link to comment Share on other sites More sharing options...
White93z34 Posted October 8, 2007 Report Share Posted October 8, 2007 if you look at the bottom of the plastic upper, you will see the 2 holes where coolant flows into and through into the throttle body, in between those is where the EGR tube also goes into the upper intake, look at the walls around where the EGR tube goes,thats where they fail. if you cannot see the hole right away try poking it with a sharp instrument to make the failure show itself. Quote Link to comment Share on other sites More sharing options...
DRGrocho Posted October 16, 2007 Author Report Share Posted October 16, 2007 well, it seems that that was the problem. We took it off again and found the hole. The car seems to be running fine, though, I'm not sure I can trust it wholly after it left me without a car for 2 weeks Quote Link to comment Share on other sites More sharing options...
Nick1234 Posted October 16, 2007 Report Share Posted October 16, 2007 or that it almost started on fire.....no issues going to toledo? btw, i ran over half a dead deer on my way home just north of lansing.... Quote Link to comment Share on other sites More sharing options...
DRGrocho Posted October 16, 2007 Author Report Share Posted October 16, 2007 No issues so far. Seems to have "used" more coolant still, but maybe that is air working its way out? Quote Link to comment Share on other sites More sharing options...
Nick1234 Posted October 16, 2007 Report Share Posted October 16, 2007 most likely. just keep an eye on everything. i Quote Link to comment Share on other sites More sharing options...
rockfangd Posted October 17, 2007 Report Share Posted October 17, 2007 intake on those cars is always the first thing to check. I cant tell you how many park avenue 3800s ive seen with the same problem. its just like symptoms of a blown head gasket Quote Link to comment Share on other sites More sharing options...
DRGrocho Posted October 19, 2007 Author Report Share Posted October 19, 2007 It still seems to be running a bit rough. Could it be a result of us messing with the mounts? The RPM's dont move around at all, it just feels rough, especially in park. Quote Link to comment Share on other sites More sharing options...
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