low turbo boost and other persistant problems in 2008

JDD said:

I have a 2008 3.0 turbo diesel. with one new and a couple nagging problems. I got 72000 miles I have only had to replace one set of tires, just did brakes ,and changed the battery and alternator last fall. I replace all glow plugs at 65000 mils and #3 (rear plug passenger side 2 more times. ) It was running fine but showing problems at #3 should I look at the glow plug controller as being the problem. I live in southeast Louisiana a faulty glow plug is not much of a problem. I just drove back from FLA with a new problem. The evening before leaving i put a can of roy purple injector cleaner in a half tank of gas. I ran it up to 3500 rpm in 3rd gear for a few minutes then put it up for the night. Next morning departed for home . the short trip to the interstate was down hill , I did not notice any problems. Once on T he interstate I noticed a lack of power and a top speed of only 65 mph. In about 40 miles pulled into a auto zone to do a scan. plug # 3 was out, low performance, low turbo boost. I purchased a scan tool cleared codes disconnected power for 3 or 4 mins hoping to clear LHM. I restarted no engine lite, but now change in the power. after a 100 miles a new engine lite, scanned it is showing only low turbo boost. When I got home I I pulled the air filter and feed turbo vanes are spinning. Its been storming here so I have not gotten below to check other than a quick inspection on the road. plumbing looks good. I had a problem 2 months back were the turbo silencer was slipping out of its pipe. I replace it plus the pipe. The old pipe had a cracked mount. At that time I replaced the factory ends. Hose looked good. Is it likely that the injector cleaner caused a problem with the pre-filter and the computer pulled the turbo off line. How do I clear that. What would you suggest I look at? Any help would be greatly appreciated.

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