2006 ISX CM870 High Pyro, surging under load
06-19-2022, (Subject: 2006 ISX CM870 High Pyro, surging under load ) 
Post: #28
RE: 2006 ISX CM870 High Pyro, surging under load
(06-19-2022 )Rawze Wrote:  if u crank up the truck with the control actuator off of it you should be able to press the control arm down, and it should move back up on its own fairly easily from the exhaust pressure against it at idle. If it hangs up, or especially if it hangs up in the full down position then something is wrong with it.
Okay got it
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06-19-2022, (Subject: 2006 ISX CM870 High Pyro, surging under load ) 
Post: #29
RE: 2006 ISX CM870 High Pyro, surging under load
This style turbo wouldnt cause the truck not to start if not working properly right? Truck blew turbo then i cleaned up everything install new turbo, now its just cranking slow
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06-19-2022, (Subject: 2006 ISX CM870 High Pyro, surging under load ) 
Post: #30
RE: 2006 ISX CM870 High Pyro, surging under load
No it would still start


User's Signature: Warranty??? Yeah right, I am the warranty!!!
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06-19-2022, (Subject: 2006 ISX CM870 High Pyro, surging under load ) 
Post: #31
RE: 2006 ISX CM870 High Pyro, surging under load
(06-19-2022 )tree98 Wrote:  No it would still start

Okay good thanks
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06-21-2022, (Subject: 2006 ISX CM870 High Pyro, surging under load ) 
Post: #32
RE: 2006 ISX CM870 High Pyro, surging under load
Got my truck running, but its not making the turbo warm up noise, like a jet getting ready for take off, my original cm870 always did this, last 2 turbos have not have made this noise when airing up, like a nice whistle when airing up , anybody know what im talking about?
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06-21-2022, (Subject: 2006 ISX CM870 High Pyro, surging under load ) 
Post: #33
RE: 2006 ISX CM870 High Pyro, surging under load
(06-21-2022 )Sage91 Wrote:  Got my truck running, but its not making the turbo warm up noise, like a jet getting ready for take off, my original cm870 always did this, last 2 turbos have not have made this noise when airing up, like a nice whistle when airing up , anybody know what im talking about?

maybe it had a boost leak>??


User's Signature: ->: What I post is just my own thoughts and Opinions! --- I AM Full Of S__T!.
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06-21-2022, (Subject: 2006 ISX CM870 High Pyro, surging under load ) 
Post: #34
RE: 2006 ISX CM870 High Pyro, surging under load
(06-21-2022 )Rawze Wrote:  
(06-21-2022 )Sage91 Wrote:  Got my truck running, but its not making the turbo warm up noise, like a jet getting ready for take off, my original cm870 always did this, last 2 turbos have not have made this noise when airing up, like a nice whistle when airing up , anybody know what im talking about?

maybe it had a boost leak>??
A boost leak would make this noise?
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06-21-2022, (Subject: 2006 ISX CM870 High Pyro, surging under load ) 
Post: #35
RE: 2006 ISX CM870 High Pyro, surging under load
Usually the turbo will be open on an 870 at idle while cold. The only reason for it to close is for EGR and it won't call for EGR till it is up to operating temperature.
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06-23-2022, (Subject: 2006 ISX CM870 High Pyro, surging under load ) 
Post: #36
RE: 2006 ISX CM870 High Pyro, surging under load
The actuator arm is getting stuck in the down position, its not moving back up on its own from the exaust gas like u said. Do i need to loosen clamp and start adjusting again?
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