Sounds like a huge air leak, no power comes and goes - PowerStrokeNation : Ford Powerstroke Diesel Forum
Reply
 
LinkBack Thread Tools Display Modes
post #1 of 26 (permalink) Old 12-21-2007, 03:19 PM Thread Starter
 
Join Date: Dec 2007
Posts: 16
Unhappy Sounds like a huge air leak, no power comes and goes

Hi:

I'm new to the site. Just bought a 97 E-350 with the 7.3L and Quigley 4x4 conversion. First diesel I've owned, but I used to drive a GM Diesel for work back in the mid 80s.

Anyway, warmed the truck up the this morning while I loaded up, at least 5 min.
Moved it across the street with no problem, left it running.

Pulled away from the curb and it was making a huge air leak noise, sounds like it is on the passenger side of the engine cover.

No power, so drove a 1/2 mile loop around the neighbourhood. Got close to the house and it seemed to correct it self. Drove another 1/2 mile and it started to do it again.

I'm new to diesel and turbo vehicles but I'm guessing that it is an exhaust leak, maybe a sticking waste gate?
Any other things I should be looking at?

Thanks for any help for the new guy!

Have a great holiday!
CraigH is offline  
Sponsored Links
Advertisement
 
post #2 of 26 (permalink) Old 12-21-2007, 03:29 PM
PSN Local
 
Aric's Avatar
 
Join Date: Sep 2007
Location: Eugene Or.
Posts: 279
Re: Sounds like a huge air leak, no power comes and goes

It's most likely the waste gate, not sure wy it closed again. Check the Inter cooler boots just to be safe, make sure one didn't pop off. Hopefully someone with more knolage will chime in, I am fairly new to diesels also.
Merry Christmas
Aric

2000 F350 CC LB 4X4 SRW ,Lariat , Blue&Beige ,Auto , 3.73 Gears ,285/75/16 BFG's
Isspro pyro, trans, boost
AIS intake
walker BTM

71 Bronco, 351W, 3sd, 4.10 gears 33/12.5/15 BFG's
Aric is offline  
post #3 of 26 (permalink) Old 12-21-2007, 05:14 PM Thread Starter
 
Join Date: Dec 2007
Posts: 16
Re: Sounds like a huge air leak, no power comes and goes

Maybe the exhaust backpressure valve has failed?
https://powerstrokenation.com/forums/...?t=3979&page=2
CraigH is offline  
 
post #4 of 26 (permalink) Old 12-21-2007, 05:49 PM
PSN Veteran
 
racehauler's Avatar
 
Join Date: Jul 2007
Location: Kansas
Posts: 1,573
Re: Sounds like a huge air leak, no power comes and goes

Yes, this sounds like you EBPV during normal operation.

Aric - His 97 doesn't have a wastegate or IC if it is all stock. I don't mean any disrespect, just don't want any confusion.

Eric
96 F-350 CC Dually
300/100% B codes, Stealth dual pumps, H2E, BTS trans, ARP head studs, Comp 910 valve springs, Tyrant Tunes
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

6.0 IC, Fuelab electric fuel pump, NAPA 6637 air filter, ITP Overboost Annihilator, AeroTurbine 4040XL
racehauler is offline  
post #5 of 26 (permalink) Old 12-21-2007, 06:05 PM Thread Starter
 
Join Date: Dec 2007
Posts: 16
Thumbs up Re: Sounds like a huge air leak, no power comes and goes

Quote:
Originally Posted by racehauler View Post
Yes, this sounds like you EBPV during normal operation.
Thanks for the help!

How much is the exhaust backpressure valves?

Get it from the local Ford dealer?

Anyone have a pic of one so I know what I'm looking for? (I think I'm getting a service manual for Christmas...)
CraigH is offline  
post #6 of 26 (permalink) Old 12-21-2007, 07:19 PM
OEM Moderator
 
Tom S's Avatar
 
Join Date: Jul 2007
Location: Littleton, Colo
Posts: 9,381
Send a message via AIM to Tom S
Re: Sounds like a huge air leak, no power comes and goes

That sounds like pretty normal if it was pretty cold out. It does that to restrict the exhaust flow out of the turbo to help warm up the motor.

Tom

1996 F250 Powerstroke 4X4 AUTO
DP-Tuner F-6 chip live tuned, BTS Transmission, Garrett 38R Turbo, Swamps Injectors 150cc, electric fuel,
Banks Intercooler, Reflexxions Cowl Hood, 17 degree HPOP, 4" Stainless Magnaflow &
Aeroturbine exhaust, Aeroforce OBD Scan Gauge, Truxedo tonneau cover
Dana 60 Precision Metal Fab RSK and SD Springs
Tom S is offline  
post #7 of 26 (permalink) Old 12-21-2007, 07:23 PM
OEM Moderator
 
Tom S's Avatar
 
Join Date: Jul 2007
Location: Littleton, Colo
Posts: 9,381
Send a message via AIM to Tom S
Re: Sounds like a huge air leak, no power comes and goes

I just read your other thread and I think that you just might have a clogged exhaust back pressure sensor tube if you had to mat the pedal to get up a small hill. For a temp fix you can disconnect the two wire connector comming off the turbo pedestal to disable the valve.

Tom

1996 F250 Powerstroke 4X4 AUTO
DP-Tuner F-6 chip live tuned, BTS Transmission, Garrett 38R Turbo, Swamps Injectors 150cc, electric fuel,
Banks Intercooler, Reflexxions Cowl Hood, 17 degree HPOP, 4" Stainless Magnaflow &
Aeroturbine exhaust, Aeroforce OBD Scan Gauge, Truxedo tonneau cover
Dana 60 Precision Metal Fab RSK and SD Springs
Tom S is offline  
post #8 of 26 (permalink) Old 12-21-2007, 07:38 PM Thread Starter
 
Join Date: Dec 2007
Posts: 16
Question Re: Sounds like a huge air leak, no power comes and goes

Quote:
Originally Posted by Tom S View Post
That sounds like pretty normal if it was pretty cold out. It does that to restrict the exhaust flow out of the turbo to help warm up the motor.

Tom
It was cold out, maybe a few degrees below freezing (-2 degC), but not that cold.

I would have thought that it had warmed up enough as it sat running for about 5 minutes while I loaded up and scrapped the windows.

The second time it happened it probably had been running 10 or 15 minutes.

Do I need to watch the water temp. gauge move before driving it?

Sorry about all the questions. Thanks for your help!
CraigH is offline  
post #9 of 26 (permalink) Old 12-21-2007, 07:40 PM Thread Starter
 
Join Date: Dec 2007
Posts: 16
Re: Sounds like a huge air leak, no power comes and goes

Quote:
Originally Posted by Tom S View Post
I just read your other thread and I think that you just might have a clogged exhaust back pressure sensor tube if you had to mat the pedal to get up a small hill. For a temp fix you can disconnect the two wire connector comming off the turbo pedestal to disable the valve.

Tom
Thanks! I'll check it out. Would that explain the sound that was like a large air leak?
CraigH is offline  
post #10 of 26 (permalink) Old 12-21-2007, 07:45 PM Thread Starter
 
Join Date: Dec 2007
Posts: 16
Re: Sounds like a huge air leak, no power comes and goes

Google to the rescue!
http://www.freeautoadvice.com/diesel/psdback.html

This sounds like it, other than "Also, if you put the pedal to the floor, the valve will open and the truck takes off like a teenager with dad's keys." it didn't seem like it opened when I had to use more throttle to get up the hill.
CraigH is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the PowerStrokeNation : Ford Powerstroke Diesel Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome