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I've got an '02 Jetta tdi that just had it's 160k timing belt change and it was done by the same private shop that did the first one. After she drove it home the wife said it sounded like the air was leaking out of the tires, which of course was a connection that wasn't tightened and was leaking boost. We returned it and they fixed the leak, i don't know where the leak was. It ran a little "off" but nothing drastic after this mainly a little jumpy on start up. The fuel temp sensor code was read and we planned to change that later. A couple of weeks go by and it starts to stumble when the throttle is chopped like at a stop light. It progresses to stalling sometimes and the idle will hunt a little on slow shifts(manual tranny). The car seems to run fine on the highway at constant speed. We took it to another shop mainly out of convenience and he's diagnosing it as a bad injector pump. I'm not a diesel expert but that didn't sound right and i wanted to get some opinions before dropping that much coin.
Also does the area where the fuel temp thermistor sits normally run dry or is it wet with diesel? He's saying there is corrosion in there.
Also does the area where the fuel temp thermistor sits normally run dry or is it wet with diesel? He's saying there is corrosion in there.