Turbo "cough" problem...

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Mar 20, 2008 | 11:08 PM

TXHillCountry

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Joined: Jan 2007

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From: Houston, TX

Turbo "cough" problem...

Hi, wanted to start a new thread on this since the one below was stale and getting off topic.

I've been dealing with the problem for a while now and wanted to hear from others who've dealt with the problem.

I get a intermitent "coughing" noise when pulling my travel trailer, mostly under load like going up a hill. My boost guage shows the boost drop WAY off during the cough, and the truck loses power during the cough.

I hadn't heard of anyone having this problem until I saw the thread below called "Does your turbo do this?" and saw the guys Youtube video. Exact same scenario as me, pulling a trailer, and the exact same coughing sound and power loss.

Sure would love to hear from others who've had the problem and what the resolution was before I go yanking the turbo off.

Thanks!
TX

Mar 20, 2008 | 11:17 PM

denman81

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Joined: Aug 2007

Posts: 469

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From: lake park, MN

have you tried it with the banks unhooked once? I had the same issues as you and the issue was even more notisable with the tuner in. turned out to be the turbo needed to be cleaned and the exhaust vanes were chipped up.

Mar 20, 2008 | 11:19 PM

TXHillCountry

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From: Houston, TX

Well, it actually did it before I installed the Banks, and still does it, so the tuner doesn't seem to be the issue.

I'm hearing more that it might be a clogged EGR?

Mar 20, 2008 | 11:24 PM

denman81

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Joined: Aug 2007

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From: lake park, MN

possible,(anything is on these trucks) have you tried unplugging it and driving it once? It only takes about an hour to pull and clean.

Mar 20, 2008 | 11:30 PM

TXHillCountry

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From: Houston, TX

After hearing (and seeing the pics) of the clogged EGRs, I'm yanking it tomorrow to clean it. I'll be pulling the travel trailer again weekend after next, so I'll be able to see if it solves the problem. I can never make it do it with the truck alone.

Mar 21, 2008 | 12:01 AM

bismic

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Joined: Nov 2003

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Some good stuff on EGR in this thread:

https://www.ford-trucks.com/forums/7...ing-smoke.html

Mar 21, 2008 | 12:04 AM

bismic

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Joined: Nov 2003

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I hope cleaning your EGR will help, but it may be that the Turbo needs cleaning.

Also the VGT actuator may be bad.

<TABLE style="WIDTH: 550pt; BORDER-COLLAPSE: collapse" cellSpacing=0 cellPadding=0 width=733 border=0 x:str><COLGROUP><COL style="WIDTH: 550pt; mso-width-source: userset; mso-width-alt: 26806" width=733><TBODY><TR style="HEIGHT: 33.75pt" height=45><TD class=xl24 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext 0.5pt solid; BORDER-LEFT: windowtext 0.5pt solid; WIDTH: 550pt; BORDER-BOTTOM: windowtext 0.5pt solid; HEIGHT: 33.75pt; BACKGROUND-COLOR: #ffff99" width=733 height=45>VGT Actuator - Clean (carb. Cleaner ONLY) or replace. VGT actuator will cost around $250.
Beside (drivers side) the fuel filter in the engine well.</TD></TR></TBODY></TABLE>
<TABLE style="WIDTH: 320pt; BORDER-COLLAPSE: collapse" cellSpacing=0 cellPadding=0 width=427 border=0 x:str><COLGROUP><COL style="WIDTH: 320pt; mso-width-source: userset; mso-width-alt: 15616" width=427><TBODY><TR style="HEIGHT: 33.75pt" height=45><TD class=xl24 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext 0.5pt solid; BORDER-LEFT: windowtext 0.5pt solid; WIDTH: 320pt; BORDER-BOTTOM: windowtext 0.5pt solid; HEIGHT: 33.75pt; BACKGROUND-COLOR: #ffff99" width=427 height=45>VGT can be the problem if you have periodic surges
https://www.ford-trucks.com/forums/6...rge-fixed.html
Turbo oil link can impact VGT solenoid</TD></TR></TBODY></TABLE>