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Old 08-20-2009, 12:11 PM
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Exclamation Turbo... Dealer has no good answer

So I have this re-occurring problem… I have posted about it before, no for some back story. I have had my truck in several times getting looked at… the EGTs under stock program are running up to 1000-1100f under moderate acceleration to 45-55 mph. I know that isn’t right. When I get of the throttle and roll back in the turbo is producing no boost and the truck doesn’t accelerate at all.
The dealer checked the EGR, the oil cooler and replaced the IPR (injector regulator Pressure) sensor, still having problem. I took the tech for a ride and showed him the issue. He said and I quote… Because I have 4 inch pipes all the way back with no muffler or cat the lack of back pressure is causing the veins on the VGT turbo to stay open. BULL SH)T. Doesn’t the right foot control the computer which in turn controls the VGT positions…? I have taken it to two different ford dealers here in town.

Any Ideas or FORD tech in NC who can help would be great…

i nornmall run innovative x-street bu the excesssive EGT has me worried and back to stock.
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Old 08-20-2009, 12:22 PM
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hmmm..what are you seeing in boost while getting up to 45-55?
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Old 08-20-2009, 12:24 PM
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all normal except for the hi EGTs
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Old 08-20-2009, 12:54 PM
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I think.... that I have a bent shaft or blade on my impeller wheel that is holding the exhaust and or expanding under the heat and ceasing it up until it cools and contracts.

does this sound right?
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Old 08-20-2009, 02:56 PM
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Did they pull the turbo and clean/inspect it?
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Old 08-20-2009, 03:03 PM
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ya, they chould have pulled and inspected the turbo to see if it needs to be cleaned or replaced......

The dealer just R&R'd my turbo to clean it while it was getting the whole egr system replaced.
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Old 08-20-2009, 05:47 PM
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i dont think so.
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Old 08-20-2009, 09:22 PM
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Quote:
Originally Posted by gabelnj View Post
I think.... that I have a bent shaft or blade on my impeller wheel that is holding the exhaust and or expanding under the heat and ceasing it up until it cools and contracts.

does this sound right?
do you honestly think this or did someone else tell you this ridiculous guess?

if you had a turbo problem, "bent shaft" or a blade holding up then that turbo would be destroyed and far from your problem.

you say your boost level is normal but what exactly is normal?
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Old 08-21-2009, 10:30 AM
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im getting around 25 PSI... but when it cuts out nothing. no whistle and black smoke, just motor, you can really hear it.
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Old 08-21-2009, 04:46 PM
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I've had plenty of turbo problems.

I had 4 turbos put on in a little over a year. The last one put on also included a new oil line. After that, I put on a 4 inch exhaust from turbo back using only the flow through muffler. Also had boost gauage and exhaust temp gauges installed. Has worked fine for a year and 4 months. Keeping my fingers crossed as the extended warranty is about to end.
The latest item that I am now seeing is the boost running higher then it normally did running empty unloaded. Under full acceleration with no load, it is up to 26-28 psi. That is about what I would pull in the Ozarks with a 12,000 lb 5th wheel camper at 3/4 throttle. When my turbo problems started, the first symptom that would happen is blowing an intercooler hose off. Does anyone know at what PSI the hoses will blow off? I have not had it happen sense the last turbo replacement and gauges installed. I watch closely when climbing hills to avoid over boost and am ready to back off the throttle if needed. I think I should be able to put my foot in it climbing the hills and not have to worry about blowing a hose off and/or busting a turbo. Any thoughts?
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