Author Topic: 99.5 TDI MKIV no power, feels like 3 cylinders, max 40mph. (Read 8504 times)

lord_verminaard · « **Reply #15 on:** February 14, 2008, 07:45:41 am »

My vote is for the turbo. I think it's beyond stuck vanes, I'd be willing to bet that the shaft has snapped. When the turbine cant turn, it's like having a brick in the exhaust. :roll: Plus, I'd also be willing to bet your intake is clogged which only hurts things more. Find a cheap boost or pressure gauge and temporarily hook it up and see if you get anything.

Brendan

the caveman · « **Reply #16 on:** February 14, 2008, 07:54:36 am »

don't just check the pump timing. check the belt. not impossible that it's off by a 1/2 or one tooth, or that the adjustment is loose.

jameezzzz · « **Reply #17 on:** April 20, 2008, 06:46:40 am »

Hi, did you ever find the route of this problem? i have the exact same issue with the engine in my van GTD (SB code) this was after putting a full tank of bio diesel in (ran it a few times before on bio) tried everything but im stuck now so any help would be apprichiated!

Cheers,

James

Possum79 · « **Reply #18 on:** April 21, 2008, 11:40:53 am »

I dont know crap about turbos but I do know that if there is something blocking your exhaust your cant go anywhere. My sister has a 87 blazer that the cat died on and was blocking the exhaust. Acted like it didnt want to shift(auto) or get fuel.

So if theres something stuck in there it wont go past like 40mph and getting to that is damn near impossible.

jameezzzz · « **Reply #19 on:** April 22, 2008, 04:07:40 am »

the exhaust seems fine, ive replaced the downpipe and gasses seem to be flowing fine through the back box! was thinking it may be something to do with the fuel, mabey blocked injectors?

Tintin · « **Reply #20 on:** April 23, 2008, 05:42:16 am »

On all TDI VE pump, at a certain milleage, the pressure regulator retainer sleeve goes out and cause the engine to run very bad, when I got a TDI in my garage, even if its a turbo problem the first thing that I check is the pump regulator, all the time on a fine running engine, the retainer is at the half way to goes out.