Brooksz Posted March 29, 2018 Share Posted March 29, 2018 (edited) Would someone please help point me in right direction. My E7 350 mechanical motor is lazy. No power, never smokes . Truck runs great but loaded or towing equipment is a joke. I heard to turn it up but I have heard if android valve diaphragm could be not working. Any help would be great. Thanks Scott Brooks Edited March 30, 2018 by Brooksz Quote Link to comment https://www.bigmacktrucks.com/topic/52952-1996-mack-el-350-no-power-or-smoke/ Share on other sites More sharing options...
fjh Posted March 29, 2018 Share Posted March 29, 2018 13 hours ago, Brooksz said: I have heard if android valve diaphragm could be not working. Any help would be great. Thanks Scott Brooks Hi Bud yup to check the ( anroid) take the 3/8 hose off at the manifold end and either suck on it won't hold vacuam or blow thru it if it leaks won't hold vacuam then you need to replace the diaphram the valve is mounted on the top rear of the fuel pump! 1 Quote Link to comment https://www.bigmacktrucks.com/topic/52952-1996-mack-el-350-no-power-or-smoke/#findComment-395425 Share on other sites More sharing options...
Brooksz Posted March 29, 2018 Author Share Posted March 29, 2018 Ok I will try that today. Is it difficult to change the diaphragm if it is bad? Quote Link to comment https://www.bigmacktrucks.com/topic/52952-1996-mack-el-350-no-power-or-smoke/#findComment-395426 Share on other sites More sharing options...
Brooksz Posted March 30, 2018 Author Share Posted March 30, 2018 Has anyone ever changed the android fuel assembly diaphragm? If so is it difficult I cannot find information on it. Can it be done leaving pump in truck. Quote Link to comment https://www.bigmacktrucks.com/topic/52952-1996-mack-el-350-no-power-or-smoke/#findComment-395454 Share on other sites More sharing options...
YASER Posted June 5, 2018 Share Posted June 5, 2018 Hello, I wanted to know if you found a solution to the problem, I have an E7 350 and the same thing happens, little force in the output when it is loaded, I put new turbo and continued the same. I would appreciate your help Quote Link to comment https://www.bigmacktrucks.com/topic/52952-1996-mack-el-350-no-power-or-smoke/#findComment-400032 Share on other sites More sharing options...
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