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CATEGORY LISTINGS > GM DIESEL > injector pump problem [ REFRESH ]
Thread Title:

injector pump problem


Created On Monday March 24, 2008 18:45 Diesel Talk
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mike572
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Posts: 1
Joined: Mar 2008

Note Monday March 24, 2008 18:45 View thread in raw text format
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replaced injector pump 3 times in two years on my 6.5L turbo , and it is going out again . got tired of messing with it took it to a shop , and they said it is a malfunction in the injector pump again, and they said it was the new low sulffer fuel that was burning the injector pump up . so when i drive it now i can drive for about a day or so, then it will shut off and sometimes it will start right back and some times it wont start for a couple of days . i also noticed two days ago it started and in ran with a bad miss for about five min. and the it cleared up , but it always has a slight miss . i checked compression #1 is the only one at p.s.i all the rest of the cylinders vary between 375~385 . when it does run it has good power and will pull anything i need it to, but i never knowwhen it will die . most of the time it will die going down the interstate . and i checked all injectors and replaced a couple of them still no diffrent .

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mike westbrook

Edited: Monday March 24, 2008 at 19:13 by mike572
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alexisrois
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Posts: 26
Joined: Feb 2012

Note Tuesday September 25, 2012 23:33 View thread in raw text format
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An Injection Pump is the device that pumps fuel into the cylinders of a diesel engine. Traditionally, the pump is driven indirectly from thecrankshaft by gears, chains or a toothed belt (often the timing belt) that also drives the camshaft. It rotates at half crankshaft speed in a conventional four-stroke engine. Its timing is such that the fuel is injected only very slightly before top dead centre of that cylinder's compression stroke

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