Curious if your Volvo’s wastegate is properly configured? MVS Volvo Forums Contributor sleddriver documents adjusting the wastegate. He finds it off, and corrects it. Often owners “give them a few turns” to keep the turbo spinning in more situations, which reduces turbo lag when you floor it. This normally doesn’t cause damage because these Volvos are […]
MVS Forums member abdomar528 documented this Volvo S80 turbo swap with many good photos to illustrate the steps he took during his oustanding 2001 S80 T6 Turbo Replacement DIY. Here’s an example of what abdomar wrote for Step 15: “BEFORE placing the oil return line seals back into position, you want to use some silicone […]
You can get the CBV diaphragm from lots of places, but I would make sure it is made by Mitsubishi. I have seen posts recently about people getting new CBVs that leak immediately or soon. I have bought them on eBay in the past but it is getting tougher and tougher to buy there and not end up with junk.
I’m in the middle of PCV service and replacing the last hoses on my 1999 before it goes to college.
Working behind the motor is tough and it’s tough to get your hands down into the area. Many operations require two hands …more to come.
Approaching the beast…turbo pipe, cooling hoses removed
Here is the winter of your disconnect….
Bolt number one, 10mm wrenches off easy..you are 1/3 done and sitting pretty.
Bolt number 2, at the bottom, you go underneath since your hand won’t fit from top. Note the shiny part of the turbo coolant return pipe. You guessed it…the bolt will not clear the pipe with it installed, so plan on replacing that hose for this job. From below, left hand to start the threads, it is tough moving cover to align but it must be done. Tension bolt number one so that the cover moves but stays in place.
Underboost is a condition that can be caused by several issues including: Bad TCV Bad Turbocharger Failed boost sensor (for models that have them) ECU seeing overboost and cutting back until reset and condition remedied Failed MAF (for ecu’s that use the MAF to determine boost pressure) Failed atmospheric sensor ( again for those that […]
S40 with White Smoke From Exhaust… Bad Turbo? A few months ago I noticed white smoke from the exhaust during acceleration when on the parkway. The white smoke doesn’t appear during startup, normal idle or when driving locally. At first I thought it might be head gaskets. I brought it to a service station who […]
Turbo: New? Rebuilt/Reman? Or overhaul? Brand new turbo from Mitsubishi, $930 shipped, or Remanufactured turbo $525, or DIY overhaul, or some other things to try detailed in this “Turbo Talk” Volvo forum topic. This is a great read for anyone interested in knowing about your choices when your turbo gets old or fails completely. Photos, […]
Wastegate Settings – Numbers and Theory The idea here is to assure the wastegate valve remains closed until the wastegate experiences the preset pressure in the VADIS doc above. Anything higher than the Vadis pressure and the wastegate valve shoud move/open. I have a magnetic dial gauge I use to monitor the wastegate valve action […]