'04 Turbo Question

[Gauthier]

This is my first CTD so please forgive some basic questions. I was inspecting the front end of my 4x2 (450 miles), and I notice a couple things on the turbo. On the compressor, I had several drops of oil clinging to the bottom edge. There is no sign of seepage at the oil supply connection, only oil on the bottom side compressor housing. Now the oil filter also had a few drops and perhaps oil blew over to the compressor from this source. ? There was not enough oil to drip to the ground. Is it common to have oil seepage from the filter? Because of the recent cold weather, I've limited engine speed to 1800 rpm until the thermostat opens. But, could this cause the oil pressure to reach a level that would cause seepage? The past two days starting temperature was in the uppe twenties, and I only had the block heater on for two hours.



Second item I noticed is the rubber hose from the compressor housing to the dashpot, which I assume controls the wastegate. The hose was pushed up against the air inlet, and the hose was pinched inward at the nipple on the dashpot. If this hose was pinched closed, could this cause problems with boost pressures, and, if so, would this cause the boost pressure to be higher or lower than it would be without a pinched hose?

Thanks!

 

[Prairie Dog]

Boost pressures would be higher and would eventually set a code if the line to your wastegate actuator was totally pinched.

High boost causes the actuator ot open a small door that allows some small amount of exhast to bypass the turbo thereby reducing boost and limiting turbo speed.



Scotty

 

[Gauthier]

Would this cause a light to come on in the dash or is there an easy way to check for codes? If the boost was high, could this cause the oil found on the compressor housing?

 

[cpizz]

The oil that you saw. Might have been some of the engine dressing they put on there. I noticed some on mine when I first got it. Keep an eye on it just to make sure.

 

[Gauthier]

Is there a way of telling if had an overpressure condition? Could this cause engine damage?

 

[Beast2B]

my 01 sets a somewhat generic "check engine" light with an overboost condition (boost elbow left in, EZ removed), but I can cycle the key to have the code displayed on the electronic odometer. Any 3G owners, can that be done on yours as well?

 

[rbattelle]

Originally posted by Beast2B

my 01 sets a somewhat generic "check engine" light with an overboost condition (boost elbow left in, EZ removed), but I can cycle the key to have the code displayed on the electronic odometer. Any 3G owners, can that be done on yours as well?

Yes. I heard you just cycle the key on 3 times, leaving it on the 3rd time and it will show codes at the odometer.