Help! When good mods go bad.
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Elder User
Joined: Jul 2004
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Help! When good mods go bad.
Ok here's what happened.
I have a '01 X 4wd 7.3
I did the "6637" or "kwik" filter. Test drove and was fine. Love the exhale too.
Then I did the IAH delete with the cummins drain plug mod. That was fine.
Then I went from green coolant to gold, and rerouted the upper radiator hose. I still can't believe ford put it through the belt. Just plain dumb. That worked fine.
All was going so well I couldn't wait to do the Walker BTM mod (big truck muffler). Sounded cool. Seemed to be fine. But on this test drivewhen I gave it the the pedal while holding the brake there was a quick loud squeek kinda like a belt but more like a super-sized cricket on steroids from somewhere near the new filter, and the engine lugged big time and RPMs dropped. Let off slowly and there's another loud squeek and power came back.
Now it seems that there's a sweet spot where it does just like above but not always consistant. One minute it's just off idle, next it won't happen at all.
The only other thing done to this truck was the removal of the red hose to the wastegate.
Any help is really needed.
I have a '01 X 4wd 7.3
I did the "6637" or "kwik" filter. Test drove and was fine. Love the exhale too.
Then I did the IAH delete with the cummins drain plug mod. That was fine.
Then I went from green coolant to gold, and rerouted the upper radiator hose. I still can't believe ford put it through the belt. Just plain dumb. That worked fine.
All was going so well I couldn't wait to do the Walker BTM mod (big truck muffler). Sounded cool. Seemed to be fine. But on this test drivewhen I gave it the the pedal while holding the brake there was a quick loud squeek kinda like a belt but more like a super-sized cricket on steroids from somewhere near the new filter, and the engine lugged big time and RPMs dropped. Let off slowly and there's another loud squeek and power came back.
Now it seems that there's a sweet spot where it does just like above but not always consistant. One minute it's just off idle, next it won't happen at all.
The only other thing done to this truck was the removal of the red hose to the wastegate.
Any help is really needed.
Senior User
Joined: Jun 2003
Posts: 452
Likes: 0
From: SC
Check the seal from the air filter all the way to the turbo. Sometimes the intake tube can slip out of the filter if not clamped good.
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Originally Posted by Fordafied
Check the seal from the air filter all the way to the turbo. Sometimes the intake tube can slip out of the filter if not clamped good.
Does anybody know how to check the wastegate without a guage? If only my hands were a little smaller. Maybe a weak spring or something? Anyone ever had one squeek?
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Kwik-thank god your here.
This is something that just happened that fateful day.
That would make sense. Do you have any details on checking the sideplay?
this isn't sounding good ya know. can the removal of the red line to the wastegate put undue stresses on the bearings causing them to fail? or maybe the increased air flow? the truck has 45k or so on it.
This is something that just happened that fateful day.
That would make sense. Do you have any details on checking the sideplay?
this isn't sounding good ya know. can the removal of the red line to the wastegate put undue stresses on the bearings causing them to fail? or maybe the increased air flow? the truck has 45k or so on it.
Fleet Owner
Joined: Jun 2004
Posts: 25,090
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From: Rio Rico, AZ.
Originally Posted by Fords4Me
Kwik-thank god your here.
This is something that just happened that fateful day.
That would make sense. Do you have any details on checking the sideplay?
this isn't sounding good ya know. can the removal of the red line to the wastegate put undue stresses on the bearings causing them to fail? or maybe the increased air flow? the truck has 45k or so on it.
This is something that just happened that fateful day.
That would make sense. Do you have any details on checking the sideplay?
this isn't sounding good ya know. can the removal of the red line to the wastegate put undue stresses on the bearings causing them to fail? or maybe the increased air flow? the truck has 45k or so on it.
Removing the red line is harmless on a stock tuned truck. Can't say on a modded engine, no experience, but do know if you overboost them the turbine rpm goes WAAYYY up and there is a chance for exploding the wheels.
Helminc manual calls for moving the shaft side to side, rotating the turbine shaft. No contact with the housing allowed. DUH! Also check for any telescope movement (in and out not side to side. Maxe 3 thousands inch. Any more than that, failed turbo.
You may have to dissassamble the wheel housings and look for contact marks on the inside of the housing to confirm.
Last edited by Kwikkordead; Aug 8, 2005 at 02:46 PM.
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Well i'm home now and getting to work on momma's ride. Thanks for the info Kwik i've gotta get some books.
And the truck does have a stock tune on it. I will get the sonnax and tricumulator first.
It does seem like if the wheel (s) were contacting the housing that would do it.
Do you think warranty would cover this little issue if it is the turbo?
And the truck does have a stock tune on it. I will get the sonnax and tricumulator first.
It does seem like if the wheel (s) were contacting the housing that would do it.
Do you think warranty would cover this little issue if it is the turbo?
Post Fiend
Joined: Jul 2005
Posts: 14,582
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From: 21791
if you are going to take it to the dealer, i would change EVERYTHING back to stock minus the muffler (if you threw it away) and that would eliminate some suspicion and they wont have much to blame you on.
Last edited by PowerstrokeJunkie; Aug 8, 2005 at 04:28 PM.
Senior User
Joined: Oct 2004
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Originally Posted by Fords4Me
Ok here's what happened.
I have a '01 X 4wd 7.3
I did the "6637" or "kwik" filter. Test drove and was fine. Love the exhale too.
Then I did the IAH delete with the cummins drain plug mod. That was fine.
Then I went from green coolant to gold, and rerouted the upper radiator hose. I still can't believe ford put it through the belt. Just plain dumb. That worked fine.
All was going so well I couldn't wait to do the Walker BTM mod (big truck muffler). Sounded cool. Seemed to be fine. But on this test drivewhen I gave it the the pedal while holding the brake there was a quick loud squeek kinda like a belt but more like a super-sized cricket on steroids from somewhere near the new filter, and the engine lugged big time and RPMs dropped. Let off slowly and there's another loud squeek and power came back.
Now it seems that there's a sweet spot where it does just like above but not always consistant. One minute it's just off idle, next it won't happen at all.
The only other thing done to this truck was the removal of the red hose to the wastegate.
Any help is really needed.
I have a '01 X 4wd 7.3
I did the "6637" or "kwik" filter. Test drove and was fine. Love the exhale too.
Then I did the IAH delete with the cummins drain plug mod. That was fine.
Then I went from green coolant to gold, and rerouted the upper radiator hose. I still can't believe ford put it through the belt. Just plain dumb. That worked fine.
All was going so well I couldn't wait to do the Walker BTM mod (big truck muffler). Sounded cool. Seemed to be fine. But on this test drivewhen I gave it the the pedal while holding the brake there was a quick loud squeek kinda like a belt but more like a super-sized cricket on steroids from somewhere near the new filter, and the engine lugged big time and RPMs dropped. Let off slowly and there's another loud squeek and power came back.
Now it seems that there's a sweet spot where it does just like above but not always consistant. One minute it's just off idle, next it won't happen at all.
The only other thing done to this truck was the removal of the red hose to the wastegate.
Any help is really needed.
Surely the turbo wheel and case will show damage from that kind of interferance. Look hard for the object. I don't know if there is a mesh downstream of the turbo that would catch big stuff from getting into the intake manifold.
Good luck
Warren