I took the car in from the auction and when they took off the intercooler hoses there was a lot of oil that was collected. They told me the turbos were bad, but some other places said it was the PCV valve which they changed. The other shop said that was like putting a band aid on a wound, it will slow the leaking, but not fix it. Since they changed the PCV valve, there was just a trace of oil in the intercoolers, but i cant get a final answer if this means my turbos are shot or another place i went to said they all spit a little oil in the intercoolers and its normal. HELP PLEASE!!
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I am going to say 'blown turbo'. As I understand it, they needs replacing every few years. They are susceptible to heat and incredible revolutions. They have to be lubricated, the seals go, and you get smoke.
Leaking of any fluid is not normal. The only time any fluid should expel from the car is if you have overfilled something. Your turbo could need replacing, you could have a hole in the intercooler. Have you noticed any lack of performance or extra smoke...
CHECK YOUR OIL LEVEL IN ENGINE INCASE OVER FILLED THIS WILL SUCK IT INTO ENGINE, IF OK CHECK YOUR ENGINE BREATHER TO SEE IF BLOCKED CAN CAUSE BACK PRESSURE IN ENGINE AND START BLOWING OIL SEALS AND GASKETS, AND THE 1ST TO GO IS THE TURBO SEALS, YOU CAN REMOVE AIR INTAKE PIPE TO TURBO AND CHECK FINS INSIDE TURBO WITH YOUR FINGERS TO SEE IF ANY MOVEMENT IN SHAFT. PLEASE DO THIS WITH ENGINE TURNED OFF :)
If oil is accumulting inside the inetercooler, it means that the turbo-shaft seal is leaking causing oil to by pass in to the intake system, then through to your intercooler. A quick check to see if this is a fault, remove the hose/piping from the turbo the intercooler and place a piece of white paper over the hole at the turbo where the air is dispelled. Run the engine for a few minutes and if you notice any oil occuring/building up on the white papaer, then it is the turbo seal. This method is used on everything from jetskis to dump trucks. If no oil is present then the oil leak will be coming from somewhere else on the engine, and being sucked in through to the top of the intercooler. May have to remove it to see where any other leaks are coming from.
audi oil leaks are usually valve cover gaskets. oil run off causes smoke on exhaust downpipes.while vacuum hoses do tend to dry rot with time it may also be the secondary air injection pump (if cold ) or waste gate for turbo.try to use a long hose,put one end on your ear use the other to locate sound. extending mirror and light may help too. missing at idle could mean time for tune up or coil pack failing. good luck
Intercooler is for a turbo charged or supercharged vehicle
you must mean your oil cooler you probably need to replace some clamps or the oil cooler lines they tend to break or become brittle after many years of use unless you hit something and cracked it. good luck
Location of the sensor: - in early cars is in the ECU, with vacuum pipe going from intake maniforld duct to the ECU - later models on the air intake duct, with wiring going to the ECU.
The fault may often be caused by:
- air leaks in MAP sensor line to the ECU (early ones only) or any of the vacuum control line hoses. This normally due to perished/loose flexi pipes, etc). - leaks in the air hoses going between turbo/engine/intercooler. Can be spotted by slight oil contamination at the point of leak.
Or it's variable vaine sticking (even intermittently) in the turbo due to contamination, preventing the turbo from performing according to the ECU demand, and hence being 'shut-off' by th ECU
So - check all vacum line for leaks, ensure turbo actuator is free to move, all air hoses are intact and secure, intercooler not leaking.
the information is from the air sencoir onthe cat see exhaust. if you have a turbo .check hose from turbo to intercooler and clean check hose from intercooler to inlet manafold and clean if oil water mix found clean and check intercooler you may find oil and water mix