CM870 Jake Brake Issue |
03-19-2021, (Subject: CM870 Jake Brake Issue ) Post: #6 | |||
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RE: CM870 Jake Brake Issue (03-19-2021 )Psuce1 Wrote: The engine makes about 15psi of boost when the Jake is on. No change in boost pressure between stage 2 or 3. It makes the correct amount of boost under load but I have not checked for leaks. I am planning on doing that though. Stage-3 jake on the 870 is usually about 26-28 psi at 1600-1800 rpom range. the only differences between styage 2 and stage 3 is more restrictions beign commanded by the turbo. -- possibly ... * bad programming? or incorrect program for the CPL? * Turbo was replaced at some point with incorrect model number (has wrong exhaust impeller in it for the CPL engine it is)? * Turbo controller or control arm acting up?. 870's notorious for this. * Problem with air supply line going to turbo? - Can't rule out a jake solenoid or control circuit for one is bad either. Maybe try manually switching them on one at a time and see if they are operating correctly?. User's Signature: ->: What I post is just my own thoughts and Opinions! --- I AM Full Of S__T!. | |||
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Messages In This Thread |
CM870 Jake Brake Issue - Psuce1 - 03-18-2021, RE: CM870 Jake Brake Issue - Rawze - 03-18-2021, RE: CM870 Jake Brake Issue - Chamberpains - 03-19-2021, RE: CM870 Jake Brake Issue - Psuce1 - 03-19-2021, RE: CM870 Jake Brake Issue - Rawze - 03-19-2021 RE: CM870 Jake Brake Issue - Chamberpains - 03-19-2021, RE: CM870 Jake Brake Issue - Psuce1 - 03-19-2021, |
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