CM2250 Poor fuel mileage |
03-05-2022, (Subject: CM2250 Poor fuel mileage ) Post: #46 | |||
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RE: CM2250 Poor fuel mileage Did you check the psv while doing leakdown test at 29k psi or regular idle? User's Signature: 2010 Lonestar - CM871 - 13sp - 3.70s, 2016 T680 - cm2350 - 13sp - 3.36s - skateboarder | |||
03-05-2022, (Subject: CM2250 Poor fuel mileage ) Post: #47 | |||
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RE: CM2250 Poor fuel mileage | |||
03-06-2022, (Subject: CM2250 Poor fuel mileage ) Post: #48 | |||
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RE: CM2250 Poor fuel mileage (03-04-2022 )Truckdriven Wrote: ... The acceptable range is anything less than 4k psi on one minute (when doing the leak test at 30k psi) and its still ok. User's Signature: ->: What I post is just my own thoughts and Opinions! --- I AM Full Of S__T!. | |||
03-26-2022, (Subject: CM2250 Poor fuel mileage ) Post: #49 | |||
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RE: CM2250 Poor fuel mileage Also I ran Injector leak test and leakdown was 2090, 6k miles ago it was at 900, and 10k before it was at 340. I checked the rail relief valve and there was not a single drip. Something seems to be deteriating should I be concerned or wait till it gets worse and easier to find? fuel pump was rebuilt 17k ago. [/quote] You might want to check the torque on the quill tubes. I had one that was leaking due to improper torgue. I was losing about 10K in a minute on the fuel rail leak down test and now she is sealed up and and holds above 29K for at least a couple minutes. | |||
01-13-2023, (Subject: CM2250 Poor fuel mileage ) Post: #50 | |||
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RE: CM2250 Poor fuel mileage Did you ever find a solution to your fuel milage problem? I have the same issue. | |||
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