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CAT 420D IT - lack of power- changed two fuel filters, one by injector pump and other between left front tire and fuel tank. Air filters cleaned, tractor serviced, Then used air to blow thru lines back into fuel tank not satisfied with POWER, tractor will not self load front bucket without busting up material with backhoe first.. Suggestions???? Is there need to turn up fuel injector pump?

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  • Cars & Trucks Master
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You may have this posted in the wrong product category. Please select another category appropriate to the problem and re-post the problem so the correct expert will see and respond to the question..
This is for car and truck problems related to Factory Installed Systems not add on aftermarket systems.
This post can't be removed or moved, please re-post the question in the correct product category. Thanks

Posted on Nov 02, 2012

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 10 Answers

SOURCE: air in fuel lines wont

Did you replace the filter and lines because of the airlocked injectors or did you get the problem after changing the filter and lines? Did you replace the injectors?

On the TDI's it takes a lot to get them bled. Even just replacing the fuel filter can be a pain. It is recommended to fill the filter with fuel through the center opening when replacing. I usually just take the old filter and pour it into the new filter. Try this and you still may have to crank it several times(many, many times). Let me know if there is any change.

Posted on Jan 08, 2009

cadman000
  • 607 Answers

SOURCE: lose of power on acceleration like its starving

Sounds like there is a load of dirty fuel in that gas tank. Ran good for a while after changing fuel filter, then began to run poorly again. Remove fuel tank, drain and clean out, replace fuel filter AGAIN. That should cure it. Hope this helps

Posted on Jun 18, 2009

Tnsiouxfalls
  • 617 Answers

SOURCE: S10 blazer lacks power, bogs under acceleration

Check your coil output, buy a cheep spark tester. Pull of a spark plug wire and plug in the tester(ground the other end), set it to bridge a gap for 30,000 volts.Have someone start it and make sure the spark will jump the gap on the tester.Danger-Very high voltage! It will light you up if your touching the tester while the car is running!You'll be able to see a bright blue spark(and hear it as well) if your coil is good.If it's a yellow thin spark it's probably the coil.
If you have good spark, check the fuel filter and fuel pressure at the fuel rail.
Back firing could be timing,cam position or crank position sensor.Worst case scenario, timing chain or belt.

Posted on Jul 27, 2009

  • 3 Answers

SOURCE: 4M40 engine lacking power and blowing black smoke.

http://www.delicaclub.com/load.php?id=20

Install the egr mod, will stop it smoking in no time
Delica owner...

Posted on Dec 21, 2009

  • 58 Answers

SOURCE: 88 iroc,(305)-shaking and losing power when

Sounds like timing still did you replace the iginition module at the tune up??

Posted on Jan 14, 2010

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Lose of power on acceleration like its starving


Sounds like there is a load of dirty fuel in that gas tank. Ran good for a while after changing fuel filter, then began to run poorly again. Remove fuel tank, drain and clean out, replace fuel filter AGAIN. That should cure it. Hope this helps

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