The death shake jake

[Purplehaze]

I was just wondering if anyone has experienced the death shake when using the Jake brakes coming down the hills? I am wondering if it's time to replace the jakes or could it be something different. Also I just notice today that with my Jake's on I get a little miss every once in a Blue Moon but when I turn it off it doesn't happen.

[Rawze]

year, make, model truck, engine, etc.etc. and some history on what it started?>.. and is it deleted or not?

will it pass an injector leak test?. #1 cause of odd jake behaviour is a leaky injector or leaky metering solenoid on the older ISX's.

[Purplehaze]

2014 pete 579 isx 15 I have the engine rebuilt in Pennsylvania at hunter Peterbuilt And they reused the jakes Because they said they were working fine But it did it before and it continued to do the same thing after the rebuildI have about 250000 miles on the overhaul

[Purplehaze]

I never had a leak test done

[Rawze]

I can only assume that the overhead valves were also adjusted at 50k miles after the overhaul? -- (or at some point before now)?


it being a common rail enigne, do a proper injector leak test on it next.

Also, Mr. Hag has seen jake issues like that on 2350's. Maybe he will chime in with his thoughts at some point.

[Purplehaze]

Yes I had the overhead done at 50k and then also at 200k

[Purplehaze]

Also I am looking at getting the insite system and connecting tools this week do you have any opinions or advice on what system to get And should I get the actual subscription through Cummings or should I just get a bootleg copy

[tree98]

You have a cm2350 so version 7.6.2 will work just fine. Get it off ebay with an inline adapter, should be around $300. It's also wise to purchase a cheap laptop to put these programs on and use it as a dedicated diagnostic tool, don't surf the web on it and infest it with viruses.

[Purplehaze]

Thanks