low boost after egr delete

[lmc122]

I just bought a 2006 F-350 SRW with the 6.0l and 102000 mi, had it less then a week and the egr cooler went out. I'm the second owner of the truck its never had a chip on it nor any problems till now, before the egr cooler went out the truck ran fine lots of power. I replaced the egr cooler, oil cooler, and installed a coolant filter, once I got it back togather and drove it up the road it, I was not getting much boost it would just move the gauge a little, and the turbo was making a loud noise when I would give it gas sounded like rushing air low power. It did not do this before. Any ideas? Thanks.

[Evil Eye]

It sounds like you have an exhaust leak. Check the connection at the up-pipe where it mates to the y-pipe and check the y-pipe where it mates up to the turbo. Both of these are common to have exhaust leaks. BTW, you can't just torque the clamp to get them to seal. You have to get them seated first and then you can install and torque down the clamp.

[a2elvis]

Originally Posted by Evil Eye

It sounds like you have an exhaust leak. Check the connection at the up-pipe where it mates to the y-pipe and check the y-pipe where it mates up to the turbo. Both of these are common to have exhaust leaks. BTW, you can't just torque the clamp to get them to seal. You have to get them seated first and then you can install and torque down the clamp.

Ditto!

[lmc122]

The exhaust was seated good before I put the clamps on I don’t think that’s the issue. I read some where that when you have the battery disconnected for more then 4 hours it can mess with the VGT until you drive while, give it time to relearn. is this true and could it be my problem? When I drove it a few minutes ago it was getting a little more boost (15psi) when I hit the gas hard but was not as before.

[a2elvis]

The late models were not as sensitive as the early models on VGT relearn.

[HICKatvRACER17]

have you found the problem? im having similar problems with mine after my egr delete

[Joeshu1000]

I have to agree with an exhaust leak some where, but check your MAP sensor hose and make sure it's plugged in.

[lmc122]

The rushing air noise indeed up being the fan running all the time. Some how I cut a wire going to the EOT sensor, fixed that and the noise stopped. The boost is now 23/24psi max and from what I read that’s normal, seemed like the more I drove it the better it got. After I fixed the fan noise I noticed a wining noise that you can hear with the turbo whistle. The truck also gets a little worst MPG’s down about 1mpg now at 13.5 city and 16.5 highway.

Now I’m having hard starts so I’m going to replace the fitting on the HPOP, and stand pipes/dummy plugs. If anything else goes wrong I cut my losses and sell it. I traded a 2002 f-250 4x4 5.4l RC LB in on this one. I thought I was upgrading but if I’m just going to have problems with it then it will be gone and I’ll go back to gas engines. I’m not hard on my trucks, only tow 10000lb max, and will never have a chip on it; do I still need to be worried about the head gaskets?