mrbowtieguy
Active member
OK I have a persistence problem That seems to plague this particular vehicle.
This vehicle currently holds the record for tow backs of any vehicle I've owned.
Don't get me wrong I love TDI's and we have 4 of them in our family.
Heres the problem. After driving the car for sometimes 30min sometime 2 weeks It will lose power and start smoking then die, It will usually start up after it cools
But sometimes not. sometimes it has grayish blue smoke when fully warm and sometimes not. There is a lot of oil on the back side of the engine which i'm thinking is probably the valve cover leaking. I have since removed that checked the cam and followers and they all seem normal.
I have replaced the following items previously before this problem arose
I had the head off when i since broke one of the glow plugs off trying to remove them. I had the glow plug extracted and and the head serviced.
The turbo was replaced with a vnt17, Timing belt, water pump, tensioner and idlers replace.
All engine, and transmission seals replace while I was putting in a new SMF and clutch.
Later still having problems I replaced the IP with a know good one, turns out it was a clogged cat.
At this point the vehicle was reliable for about 20k miles.
I've replaced the 109 relay, all new vacuum hoses.
When I removed the elbow right at the intake I noticed it was clean and dry inside. it has a ccv delete but my other TDI's do as well and the others have oily residue in them as I think is normal.
Now this vehicle has over 300K on the clock, I just did a compression check and all cylinders are at 450psi + - 20psi.
I have never replace the injectors on this vehicle and I used to run Bio in it a few years ago when it was readily available.
I can't help but question the injectors, and It may be more cost effective to go ahead and get some new tips and take them to get Cleaned, balanced and pop tested.
At this point any advice would be appreciated.
This vehicle currently holds the record for tow backs of any vehicle I've owned.
Don't get me wrong I love TDI's and we have 4 of them in our family.
Heres the problem. After driving the car for sometimes 30min sometime 2 weeks It will lose power and start smoking then die, It will usually start up after it cools
But sometimes not. sometimes it has grayish blue smoke when fully warm and sometimes not. There is a lot of oil on the back side of the engine which i'm thinking is probably the valve cover leaking. I have since removed that checked the cam and followers and they all seem normal.
I have replaced the following items previously before this problem arose
I had the head off when i since broke one of the glow plugs off trying to remove them. I had the glow plug extracted and and the head serviced.
The turbo was replaced with a vnt17, Timing belt, water pump, tensioner and idlers replace.
All engine, and transmission seals replace while I was putting in a new SMF and clutch.
Later still having problems I replaced the IP with a know good one, turns out it was a clogged cat.
At this point the vehicle was reliable for about 20k miles.
I've replaced the 109 relay, all new vacuum hoses.
When I removed the elbow right at the intake I noticed it was clean and dry inside. it has a ccv delete but my other TDI's do as well and the others have oily residue in them as I think is normal.
Now this vehicle has over 300K on the clock, I just did a compression check and all cylinders are at 450psi + - 20psi.
I have never replace the injectors on this vehicle and I used to run Bio in it a few years ago when it was readily available.
I can't help but question the injectors, and It may be more cost effective to go ahead and get some new tips and take them to get Cleaned, balanced and pop tested.
At this point any advice would be appreciated.