Fix the oil pressure issue before doing anything else.

 

Is the chance of it actually being the oil pump low?

 

It’s a problem if the oil pressure warning light comes on as it’s probably only 8psi or so - not at all good for the engine. Before thinking about any mods I’d investigate that first. Oil pump, oil pump pickup screen, worn connecting rod or crankshaft bearings, etc. could be the cause. And the “loud fighter jet” sound can’t at all be good. If the turbo is self-destructing it could be sending metal fragments into the engine.

Not revving over 3000 could be mechanical or more likely it’s in limp home mode requiring resetting of the throttle body at a minimum.

Unfortunately, you have a few issues but I’d be most concerned about oil pressure.

 

Thank u so much for info ! Is there any symptoms for it being a specific part like the oil pump or the pickup screen? Is it a chance its only the sensor or probably not since the mechanic has checked the pressure so it cant be the sensor then right? Most of the parts you're mentioning are unknown to me and i have no idea how to get to them or if i need any special equipment for it but i think as soon as i get into it im gonna get the idea and pickup rather quick. Is it hard checking the parts you mentioned myself?

 

The job to replace the turbo is not that hard and you really can't do anything that will cause issues other than not prime the turbo with oil and make sure you pump up the oil pressure by turning over the engine with no plugs in it until the oil pressure builds befor eyou start it.

the TD04 is the better turbo for the 9-5, I'd get one of those. Get the stock one. If you have the Garrett then you'll need to change over the coolant lines from one with a TD04 or get the adapter rings that you can get on ebay.

you really only need the king cobra if you want to tune it to get the max HP.

A couple of things to make the job easier:

• try to find get the studs out of the top of the turbo where it meets the exhaust manifold, using two nuts locked together, that way you don't have to take the exhausst manifold off (which requires removing some other stuff)
• unbolt the oil drain from the turbo, you will take it out after the turbo is out and put it in before the turbo goes back
• like I said, take the plugs out and crank the engine until the oil pressure comes up to normal after you put the turbo in, then put the plugs back and start the car.
• if the turbo leaked a lot of oil make sure you clean out the intercooler and y ou're going to make a lot of smoke when the exhaust gets hot. you'll have to take it for a ride, do it in the dark.

you really don't need to add much to go to stage 1, better flow for stage 2 is necessary. But take that in steps.

I've not done one of the china turbos, I actually took some TD04's from junkyards and used those. They are quite robust.

 

The job to replace the turbo is not that hard and you really can't do anything that will cause issues other than not prime the turbo with oil and make sure you pump up the oil pressure by turning over the engine with no plugs in it until the oil pressure builds befor eyou start it.

the TD04 is the better turbo for the 9-5, I'd get one of those. Get the stock one. If you have the Garrett then you'll need to change over the coolant lines from one with a TD04 or get the adapter rings that you can get on ebay.

you really only need the king cobra if you want to tune it to get the max HP.

A couple of things to make the job easier:

• try to find get the studs out of the top of the turbo where it meets the exhaust manifold, using two nuts locked together, that way you don't have to take the exhausst manifold off (which requires removing some other stuff)
• unbolt the oil drain from the turbo, you will take it out after the turbo is out and put it in before the turbo goes back
• like I said, take the plugs out and crank the engine until the oil pressure comes up to normal after you put the turbo in, then put the plugs back and start the car.
• if the turbo leaked a lot of oil make sure you clean out the intercooler and y ou're going to make a lot of smoke when the exhaust gets hot. you'll have to take it for a ride, do it in the dark.

you really don't need to add much to go to stage 1, better flow for stage 2 is necessary. But take that in steps.

I've not done one of the china turbos, I actually took some TD04's from junkyards and used those. They are quite robust.

Hey and thank you !
What does priming the turbo mean? I guess its actually oiling it before use so it isnt running raw or dry. Does this need to be done regardless of used or new turbo? What do I need to check the oil pressure and possible for u to show or explain where its done? Turning the engine with no plugs do you mean no sparkplugs and coil or just no sparkplugs or is it something else maybe? And i guess this is all done after the new turbo is installed?

I've seen when looking around on the TD04 it got the numbers 15t, 19t or 20t, does that matter and what it is and what should I get? The size of the compressor wheel? I know its a Garrett turbo in it now and its most likely the original small one though im unsure of the name but you probably know which one it is. Whats the stock TD04? What does the coolant line look like for the TD04 and does it go straight on my car ? Whats everything i need to change over to a TD04 that works with the car?

What does the king cobra do or do better than the original one?

Does it hurt the engine cranking without the said plugs and does this drain the battery? What is normal oil pressure? Is it the same number for every car or does every car have a unique number?
How do I see if the turbo has been leaking? Or does it just do that if its not working properly. The turbo has been bad now for maybe a month and ive never seen it leak oil on the ground not even when driving so i dont know if that says anything. How do i clean the intercooler if needed? Isnt it placed behind the radiator or somewhere between?

Thank you again and sorry for tons of questions !

 

Hi and welcome.

I'd start with replace oil pressure sensor.
Then I change oil to 5W-30 Dexos2 grade oil.
Remove your fancy K&N ASAP and replace it to original air filter.
Check air intake hoses inc IC carefully and to throttle body and try to open exhaust from turbo for checking if exhaust is clogged.
Which spark plugs you use now?

If all these are OK, then you might consider to replace turbo.

 

Hi and thanks !
Is it a chance that it is the oil pressure sensor as the mechanics already checked that it has bad pressure?
Why should i use 5w-30 over 0w-30?
I remember reason i changed airfilter was because on the BSR website it mentioned that a less restrictive air filter could help feed the car with the air that it needed for the stage 1 though now its not there now so i dont know if thats not needed anymore.
Isnt the K&N filter worth it or isnt the engine powerful enough to need it yet?
When opening the air intake hoses what am i looking for? Same with exhaust from the turbo.
Not sure which ones are in it right now but I'll ask them on Monday

 

If you have bad oil pressure, it could be symptom of wrong viscosity oil.
If new oil will not help, I'd take oil pan out and check oil intake screen and intake pipe carefully.

Original air intake including original air filter is good up to 500hp.
K/N is good for seller's bank account, but bad for engine, despite what BSR says. There are several dynamometer results for this.

You are not needed new turbo yet, so keep your money in your pocket.

Typically air hoses are misplaced or clamps are loose and pressurized air leaks out.

 

Alright thank you !
Gonna ask them which spark plugs they put in tomorrow and then first thing im gonna do is prep up for the oil flush ! Then its getting a turbo and changing it and in my head it seems pretty straight forward, Kinda like building a PC when you look at it it seems like its tons of parts that needs to fit but when youre used to it u can easily name every part and you know which cables go where.
If I ever come to the point of removing the oil pan is it easy to locate the intake screen and pipe? One thing is im pretty sure it isnt leaking at least so lets hope thats not the case.

Should I just get another the garrett turbo and do you know which model it is and wait on the TD04?
What should i look for when buying a used turbo?

Do i just check the air hoses around the turbo and intake area? Are they hard to get to and are any under the car?

 

Why you want so badly replace turbo?
Is it bad or do you have too much money and time?

 

That’s kinda the whole reason I started this haha
Mechanic said it’s bad and should be replaced and it’s making really really loud sounds and won’t rev over 3000 so must be the turbo?

 

And now recently the engine sounds more echoey at low temps so I don’t know if that relates to the turbo

 

Post a video of it running.

 

Alright ill send it tmrw

 

Do you have tools?

A spark plug socket is a pretty basic part of any tool kit.

 

Anything i need to worry about when removing sparkplugs?
Like how tight i should tighten them or something or is it just in and out?

 

You are unsure of spark plug replacement and you are planning to replace turbo???

 

No no i know its straight forward and im literally doing it right now but its all new to me so i dont know if there are anything to worry about.

 

Just in and out, very simple, if you arent familiar with spark plug re and re then you might be best off using a torque wrench so you don't over tighten until you get a feel for how tight the spark plugs should be, you have to careful when tightening them in the aluminum head.

I just watched your video, I think you have noisy accessory pulley bearings on the serpentine belt.

 

Alright thank you!
You mean the sound from the engine it self or when revving? I remember i recently got one of the pulleys replaced because it had a crack but thats all i know about pulleys and belts

 

I was also wondering about this. I just got my car back from the mechanic and im seeing this thing and i feel like i havent seen it before? Its some oil there and when ive looked up the cars engine bay on google i find out theres something supposed to be there i dont have? Is this normal or am i missing something?

 

That is a vacuum pump that is used on automatic transmission cars for the power brakes.

The third picture shows the plug that is placed there when you don't need the pump, you can get a new plug and seal for it.

 

ahh alright thank you ! Just found out its the original spark plugs that the manual books tells u to use and the whining doesnt start before the engine gets to normal temperature. Also realised smoke comes from the right side of the radiator like faint smoke you barely see it. Idk if you know what that is?

 

What are you doing?

 

I just checked the spark plugs and they are the same the owners manual tells me to use NGK BCPR6ES-11

 

You said u wanted to know which ones the mechanic put in the car

 

Yes I did. Those are correct ones.

What you want to with your car?
Basic maintenance, tune, something else?

 

Right now I just want to get the oil and turbo fixed. After that I was I wanna start looking at exhausts and similar small upgrades to start off.
But my main goal is to just have it easy tuned and work on it here and there but at levels where it’s safe for the engine if that makes sense

 

First you need to solve your oil issue.
You want tune, then I recommend Mitsubishi turbo, same as Aero has.

 

That’s the td04 right? And it’s safe for the 2.0? What extra or what do I need to change compared to the garret one that stands in it?
I’m thinking of starting with the system flush next week and see if that helps. What bars should the oil pressure be at when idling and in rpms?

 

TD04-15T, which is safe for 2.0 also. 2006-> 2.0 uses it.
You need to change water lines (or banjo bolts with different washers and bend slightly lines if you use old ones).

Lubricating system 9-5 (9600) 2004 | SAAB Workshop Information System Online

 

Alright thank you! Gonna have a look at it. I’ve seen there’s also like 19T and 20T what’s needed to use those ?

 

You might need bigger turbo when you go higher than original can.
I personally drove almost 10 years 2006 9-5 Aero manual which had 315WHP and 479Nm.
It had stock turbo fuel pressure and intake, bigger injectors and full 3" exhaust.

 

Oh wow that’s mad
We got this car around august 2021 and it wasn’t until first now something needed a change which was the spark plugs and had a gap of 1.7mm which then ruined the coil haha. Then now turbo. But before us there was only 1 family that’s owned it since it was new which I think is really positive tho the turbo felt a bit behind from the start. We did get it for around 1500 euros but at first was just brakes so felt good about the car !