So I am preparing for the replacement of the PCV system on my 95 850 Turbo. I have looked through some pretty good write ups. I'm wondering what other maintenance I should look at doing while I am under the hood.

Service on the car has been minimal before my ownership. Aprox 150,000 miles.

Already cleaned my PCT

Things I have seen people say to do while I'm in there.

EGR valve (clean?), Throttle Position Sensor, Fuel Pressure Regulator and Starter Motor

Funds are limited. Whats worth doing and whats not?

 

Wouldn't do the starter unless it's going bad, and both fpr and tps are accessible regardless of whether or not you remove the manifold so I'd wait on those unless they're giving you trouble. EGR valve probably wouldn't hurt though, shouldn't cost you much to clean. Thermostat might not be a bad idea while you're in there too. Just my .02

 

Wouldn't hurt to clean the throttle body and manifold out while they're off. Make sure to fish the holes in the block behind the box out and blow through with a hose to make sure they are plugged up. Also check your intake valves and make sure they aren't gunked up while you can see them. I agree with waffle on the EGR, regulator, and TPS. The thermostat can be dealt with without removing the manifold just as the FPR and TPS. Since you're getting in there, take the intake hose off the turbo and check it too if you feel up to it. I would get a seal for your dipstick tube as well because they do wear out and you're taking the tube out when you do this job. The breather kit is $142 from IPD, the dipstick tube seal is $4, and the cleaning supplies won't break $20 if you don't go overboard.

 

remember to check if the kit comes with the dipstick tube because mine did, as well as with injector seals

 

Depending on your funds it would be a great time to do a coolant temperature sensor. It's just under the thermostat and if you take a look at it's location you can see it's a nightmare to get out, at least it was for me. With the intake out of the way it's a breeze and it can prevent you from having a problem somewhere down the road.

Definitely isn't a necessary thing to do but it's a convenience to do it when it's sticking out there in the open.

 

The IPD kit comes with 5 seals for the injectors, but a turbo injector has two per injector. So I had to buy a injector seal kit with 10 seals. FYI

 

I usually recommend people leave the injector rail in the manifold but since you have an EGR to clean, you'll need to pull it apart.

I see no reason to do a t-stat or ETC while doing that job. A new ETC cost about $60 and I had a new one go bad in 2 weeks so that expense was a waste for me.

You might want to get a throttle body gasket and EGR gasket. They cost less then $10 together.

I have to do one tomorrow so I'm right behind you. LOL

 

You can pick them up at a local auto parts store. The BWD part number is 274571 for a pair or 212093 at NAPA. They run about $1.60

Then there is the kit with the plastic tip 312085 at NAPA and about $3.60 per kit.


I always use a little Vaseline on any "O" rings to help them slide into place rather than possibly catch, roll and tear.

 

Killer, this has been exactly the information I was hoping to gather.

Thanks much guys.

 

Have some vacuum lines on hand. As I was undoing mine, plenty of them had rotted, and mine was a 97, so it's newer than yours.

I got 20 feet of silicone vacuum line off eBay, they'll probably last as long as the car does

 

Spare Vacuum line on hand, Priceless !!

Silicone, all the better