sound clip found
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Elder User
Joined: Aug 2005
Posts: 831
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From: Katy, Texas
sound clip found
Ok for those of you who read my last posts about my truck not running right, I was on the DPS performance site n saw the sound clip of the low compression 6.9 well I clicked it n from what I could hear that is the same sound my truck makes at Idle. the clips caption says lowered compression 6.9, I don't know if they lowered the compression on purpose or what but thats the sound my truck makes so go to dps-performance . com and take a look at the gallery n tell me what you think could be the issue
Post Fiend
Joined: Nov 2003
Posts: 21,285
Likes: 15
From: Nutter Fort, WV
That engine is running 18 to 1 compression and lots of boost.
The compression was dropped by milling the pistons .080 off the top.
I can't remember for sure but I think the HP numbers were over 350 and it is street driveable if you can get it started.
If your engine sounds like that, I would say you need to do a compression check and check the glow plugs again.
That is about how mine sounds at 5 degrees or lower when I try to start it without being plugged in.
The compression was dropped by milling the pistons .080 off the top.
I can't remember for sure but I think the HP numbers were over 350 and it is street driveable if you can get it started.
If your engine sounds like that, I would say you need to do a compression check and check the glow plugs again.
That is about how mine sounds at 5 degrees or lower when I try to start it without being plugged in.
Last edited by Dave Sponaugle; Apr 8, 2007 at 09:22 PM.
