WTF. Car keeps overheating?

[flybynite]

Yep, That will do it every time...

[dogginred90]

Alright guys here is an update. Replaced both head gaskets, new head bolts, LIM, UIM,and valve cover gaskets. After that it ran worse then before. Replaced plugs still like crap. Found what I thought was a bad plug wire(wrong). It ended up being a bad coil. But it was only for the number 3 cylinder. Anyone ever hear of a coil going bad on just one cylinder. But thats not the kicker. It also had 2 pounds of boost instead of 10 or 11 as usual. Found that there is oil in the turbo vacuum line.(not the wastegate side). So I think my turbo that was rebuilt 2 years ago now has to be rebuilt or I go with a 2817. This is my luck with this car. One good note is it now idles the best it ever did.Footnote even with vacuum lines off turbo I have no boost now. Any ideas befre I get another turbo for it.
                                        Thanks,
                                              Shawn

[TGed]

What kind of gauge are you using?  The stock gauge for reading boost is terrible.  Try hooking everything back up like it should, then take a reading straight from the plenum for boost ref.  If that still yields nothing good, pressurize the wastegate actuator see it that holds pressure and moves when applied.

[dogginred90]

I have an aftermarket boost gauge. And it is hooked up and works fine. My actuator does hold pressure.

[killinprixs]

If the turbo worked fine before you took the heads off its probably something that didnt get back together right.  What is your firing order from left to right on the coil packs?  Did you take compression test when you were done?  Those are things i would check first.  A blown diaphram on the wastegate would create an overboost not underboost.

[dogginred90]

Well compression is great around 140 across the board. It was running about 10 lbs of boost since Thursday, but didnt run good at all. Spit and sputtered and bogged down. Now no boost and car idles great and runs strong minus boost of course. No engine noise at all. Engine is so health minus NO BOOST.

[TGed]

Is your crossover cracked?

[dogginred90]

If any a little bit. But it has always been like that. But my concern is the oil in the vacuum line coming of the turbo going to my selinoid. With it unhooked it coats the front of my engine with oil slatter. I t didnt do this till this morning. And with my seliniod unhooked it never went above 8 lbs of boost. With a kenny hot tune chip which should produce 12 lbs like it used to do till my head gasket went out. With the lines off it should of over boosted but it never reached close to that.

[TGed]

hrmm interesting.

[killinprixs]

sounds like the intercooler pipe popped off, check the clamps and couplers there.  The oil probly got sucked in from the crankcase breather on your valve cover... that is if you have the stock airbox setup.

[dogginred90]

no factory air box. K&N air filter, and breather. All intercooler piping is on and tight

[TGed]

PCV good? 
I once did this to "test" turbo seals.  I brought the turbo over the the bench, installed some barbed fittings, then clamped on some oil lines and fed it first cold oil then second test was with hot oil.  I used 0w30 oil.  It did show me oil puking out the compressor side, but this was on a different turbo.....  Could it work for you, maybe.  Should you try this, up to you.

[dogginred90]

PCV is new. This is terrible. Turbo was rebuilt 2 years old and has about 1200 miles on it. This car has fought my every step of the way. Just about everything is new on the car.(mechanical wise). Every sensor, vacuum line, plugs, wires, DIS, and coils all have 1200 miles or less on them and still fighting it. UUUGGGHHHH

[dogginred90]

Ok guys I am offically an idiot. I guess when I did a quick check of everything I missed my lower intercooler hose popped off. Hence no turbo spool. Insult to injury I had me wastegate accuator vacuum lines crossed. Dumb ass!!! Well car runs great, idles fine except above 8 lbs. It bucks and backfires. But it might be some weak coils or something in my gas tank. If you rock my car there is something banging in there. Over the winter plans. New coils,DIS,gas tank, sending unit and pump. Just because they are 19 years old.

[GPChief]

Gald to hear you got it figured out :icon_mrgreen: