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Deutz engine runs rough

Deutz engine runs rough .starts ,but when revving up it sometimes runs good, then slows down .Almost like running out of fuel.There is a electric transferpump in addition to the original mechanical pump. I emptied the tank,and put clean fuel in with some diesel conditoner. Did not help. What next? (Machine had not been used for 2 years,and the fuel looked like it had water in it.)
hannu

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 1861 Answers

SOURCE: 99 tacoma

Still need the codes.
Injectors can go "bad" in a couple of different ways; all they are is an electromagneticaly controlled nozzle. When the ECU "fires" the injector, it pulses a ground circuit for 4-8 milliseconds, the electromagnet powers up, the valve at the bottom of the injector opens, and the fuel shoots out, under pressure. The wire can be bad/chafed/corodded/ The electromagnet may be weak. The nozzle may be stuck. Lots of things. But, to put in an injector for a number 4 cylinder misfire (p-0304 code) would be one of the last things that I would do.

Posted on Nov 21, 2008

  • 1 Answer

SOURCE: expert van 2.0 hdi engine runs lovely until you

Hi You need to get the ecu checked for fault codes if there are none it is possibly low fuel pressure you should allso check this have you changed the fuel filter or opened any fuel lines this could introduce air
which will lower fuel pressure.Good luck Chris.

Posted on Mar 24, 2009

  • 14036 Answers

SOURCE: Rough idle and generally running terrible!

if idling rough sound like air in system.and your injection pump timing is off.

Posted on May 23, 2009

  • 74 Answers

SOURCE: Engine needs priming every time I want to start it.

wow could be afeul pump going bad or dirty filter injectors but im not sure i know gasoline cars

Posted on Jun 24, 2009

adve1958
  • 246 Answers

SOURCE: engine runs very rough

if is runnig the PCM is not the problem,change the coil pack or the crancshaft position sensor.
the PCM is very expensive(500+) but they hardly go bad. PCM(power control mudule)

one more thing,have you tried the spark plug wires?

Posted on Sep 08, 2009

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