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[fusaichi pegasus]

Originally Posted by EBX

STUCK IN PA, 500 MILES FROM HOME. HELP!!!

The X is 100% stock, accept the pilar gauges. 63,000 miles. Out of warranty, ofcourse.

Intermittently while towing 7000 lbs. up hill, my boost gauge will fluctuate wildly up and down 5 lbs. of boost either way. No power. I also hear a poofing sound under the hood.

This occurs at around 17 lbs. of boost and 1100 degrees on the pyrometer.

Trans. gauge is normal around 160.

1st time, in Indianapolis IN, three weeks ago, after puffs of black smoke out the exhaust and fluctuating boost gauge, dash light came on. Ford replaced the egr valve, cleaned IAT tube and some turbo tubes. They also did the vvt test to check the veins in the turbo and it checked out ok. $1123.00.

2nd occurrance, in Wheeling WV, last week, no puffs of black smoke, irratic idle, no power, puffing sound under hood, at 17 lbs. of boost, 1100 on the pyro. No Dash light. Ford replaced the map sensor. $230.00.

I tightened the turbo hose bolts, replaced air filter, engine oil, drained water/fuel separtator. Fuel filters were changed 12000 miles ago.

I am now stuck in PA. I live in OH. I flew the wife home for work. I have another few days off to get this fixed and get home.

I can't reproduce the issue in tow/haul or not. It occurs when it wants, only while towing uphill with a load (7000 lbs. right now).

Please help get me home.

I will focus on the last part this post and try to explain what you concerns MAY be keeping you from returning home while excusing your later comment refeering that Ford is incompentent. This is a perfect example of why so many Ford techs dont or wont work on the Diesel engine. First of all, Quit wasting your money trying to throw a hand grenade on the problem. It isnt a maintenance issue. The symptom you have is obviously intermittent, Thus,The dealership may have tried to repair the issue due to a known concern, Not YOUR concern. I would not think this is a problem for and independent shop either due to the fact most do not have the resources or the diagnostic tools to find the ROOT CAUSE of YOUR problem. If I were working on your truck I would monitor the Icp v pid koeo. It should be .15-.35 volts koeo. A biased ICP sensor can cause a number of drivability concerns like you describe. A biased Icp sensor can also set a p0299 underboost code. I would also make sure that the new Egr valve was not replaced without making sure that there were not excessive carbon and coking deposits in the intake manifold. Sometimes an Egr valve concern is the end result of the problem and not the source. Replacing the valve will not solve the problem and will buy little time til the concern re-appears. Without getting to technical, Lets remember that the turbo and egr system take inputs from several sensors to determine operation. Without seeing the specific concern happening or seeing an Ids recording it will be impossible to resolve your problem online. I would also recommend that you take all you previous repair paperwork to the dealer with you as some of the replaced components will have a 12 month 12k warranty on the part. good luck and dont lose hope yet !