TDI Jetta No Power - Diesel Truck Forum - TheDieselGarage.com
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post #1 of 5 (permalink) Old 08-19-2007, 10:13 PM Thread Starter
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TDI Jetta No Power

03 VW TDI no power, Dealer says its a valve on the turbo an recommends replacing the whole turbo assy. Anyone dealt with this? Thye owner says it happened after the timing belt was replaced.

06 F-350 Crewcab 5.9 CR
03 Excursion 6.0
99 F-250 7.3
97 Dodge 3500 5.9
95 F-250 7.3
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post #2 of 5 (permalink) Old 08-19-2007, 11:45 PM Thread Starter
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Ok here is what I have come up with. The turbo and actuator seem fine. There is a change in airflow and turbo sound when I apply/release vacuum to the actuator so i assume that is all ok. If I unplug the Mass Air Flow Sensor all the power is back. Plug it back in and no power at all. Time for a sensor?

06 F-350 Crewcab 5.9 CR
03 Excursion 6.0
99 F-250 7.3
97 Dodge 3500 5.9
95 F-250 7.3
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post #3 of 5 (permalink) Old 08-20-2007, 04:13 AM
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Maybe they got it wet somehow?

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post #4 of 5 (permalink) Old 08-20-2007, 10:00 AM
 
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I had a mass air read low on me and that took a lot of power away. Replaced it and all worked fine. Those lil kritters aren't cheap. That linkage on the turbo will take power away too, if it is stuck open. Just clean it up lube it some and on the way you are. While your at it, check that airfilter and dieselfilter too. However, you can figure out what is going on once you have a propper VW scantool hooked up to it. It'll show where the air is reading low. I'd look at the mass air flow sensor first. If the dealer replaces the turbo unter warranty, let him do. :smoke :Thumbup:
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post #5 of 5 (permalink) Old 08-23-2007, 07:51 PM
 
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If you unplug your maf sensor and you get power back then thats your problem. its a common problem with them. you can try cleaning it and see if that helps, it worked for me.
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