Detroit diesel 60 series problem

Rideandrepair · Feb 3, 2020

Well, things happen, Parts can be bad, and humans make mistakes. I’m having a problem with mine, after an OH. Replaced check valve, fuel filters, each time I thought it was fixed.Still sucking air somewhere. My problems unrelated to th OH, but still aggravating. Probably something simple.

Neshot123 · Feb 3, 2020

Rideandrepair said: ↑

Well, things happen, Parts can be bad, and humans make mistakes. I’m having a problem with mine, after an OH. Replaced check valve, fuel filters, each time I thought it was fixed.Still sucking air somewhere. My problems unrelated to th OH, but still aggravating. Probably something simple.
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Gremlins . Will keep posted to what Detroit Finds and hopefully my issue will help someone else

x1Heavy · Feb 3, 2020

With everyone pointed at turbo, take that thing off and stick on a simple turbo. If there is one laying around. Maybe one of the old time ones. See how that does.

Longway · Apr 2, 2020

GNVTrucking said: ↑

We still have issues. The shop has been over the fuel system, wiring, turbo, injectors etc. We sent the ECM back to the other shop to have it reprogrammed and got it back Wednesday, hooked it up, and drove it. It's not working any better. Here's my experience that day. Pulling on to road bobtail, couldn't really tell the power. After shifting to high side of transmission I shifted up 2 gears to put torque against it. Turbo would not respond, it took a mile to get to 65mph. I noticed that the mph and rpm were not where they should be, so I turned on my GPS to see what was actual speed. There was as much as 6 to 10 mph difference. Back at shop we hooked up the computer to see fault codes. It showed Turbo Speed Sensor fault. But I never saw a check engine light. They checked the bulb and it then came on. Next was to remove the fuel shut off valves on top of trans. They were loose and could be getting air. Bypassed them to get a good tight connection . Back on the road, I experienced the sam things. I took it further up the freeway bobtail again, and finally got it up to 70mph according to the GPS. The speedo on the dash never went above 60. W g end I put the pedal down my check engine light would come on and go off when I let up . Back at the shop the computer showed 13 times the Turbo Speed Sensor fault. Thing is there is no sensor. This is a Borg Warner quick spool turbo. When I did the delete 3 years ago, we changed the turbo and manifold. Deleted the EGR from the ECM, and reprogrammed it. It has ran wonderful, better horsepower, better response, better and cleaner emissions too. Now today after sitting a day the computer is back to showing a VNT code for a variable vein . There isnt one. According to the mechanics, 3lbs boost it shows when turned off, is from the atmospheric pressure sensor that was installed at the delete to give it better response. Feel free to give positive feedback. Thank you, Glade.
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Did u ever figure out the problem

Longway · Apr 2, 2020

Did u ever figure out the problem I'm having the same problem

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