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2000 RPM no fuel pressure and idles @ 2000 RPM.

Tiny
ROBINLAFOUNTAIN
  • MEMBER
  • 2001 CHEVROLET ASTRO
  • 16,000 MILES
Fuel injectors changed with brand new Bosch injectors still doing the same thing 2000 rpm no fuel pressure it sits there and idles @ 2000 rpm.

My husband has a 2001 duramax diesel and he changed the fuel injectors because thats what the company told him. He changed the injectors brand new bosch.
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Thursday, September 13th, 2012 AT 10:54 AM

13 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Did they check the high pressure? Did you return to the shop for a follw up as there repair did not work. Did he change the injectors or the shop?

Roy
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Thursday, September 13th, 2012 AT 10:56 AM
Tiny
ROBINLAFOUNTAIN
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His buddys diesel mechanic changed them. He has spent 3,000.00 any ideas about what could be wrong. What do you mean high pressure?
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Thursday, September 13th, 2012 AT 11:05 AM
Tiny
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Its the way the system works. That was an expensive guess.

You need a real shop to at least diag it for you. They will do all the needed checks to verify the problem. Not something you can do at home.

Roy
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Thursday, September 13th, 2012 AT 11:10 AM
Tiny
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He did take it to a shop that is why he changed the injectors. But it is still doing the same. What should he be looking for now?
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Thursday, September 13th, 2012 AT 11:14 AM
Tiny
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Take it back to the shop as I suggested in my first post for a follow up. They mis diaged it and should follow up for you to verify the issue,

it is not as simple as me suggesting something as it would be a guess. You have already spent way too much for a guess. Get it cheked correctly eithere at the shop or another shop.

Roy
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Thursday, September 13th, 2012 AT 11:18 AM
Tiny
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I would have bet on a ficm before going to the injectors but this needs to be verified before throwing anything at it.

Roy
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Thursday, September 13th, 2012 AT 11:19 AM
Tiny
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What does ficm mean?
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Thursday, September 13th, 2012 AT 11:29 AM
Tiny
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Fuel injection control module.
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Thursday, September 13th, 2012 AT 11:33 AM
Tiny
ROBINLAFOUNTAIN
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Ok I will get back to you, but with the high pressure and checking the ficm will that give him fuel pressure and wont sit there @ 2000 rpm's. Just asking.
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Thursday, September 13th, 2012 AT 11:38 AM
Tiny
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Could be, but I cannot give you a definite answer unless I did the actual testing. You are there and I am here going on your info only.

Roy
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Thursday, September 13th, 2012 AT 11:50 AM
Tiny
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Ok thanks for your help.
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Thursday, September 13th, 2012 AT 11:52 AM
Tiny
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We have a guy that has a computer & did a diagnostic on the system. When it is running 180 psi when he goes up a hill it drops to 120 psi. Any suggestions?
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Thursday, September 13th, 2012 AT 9:15 PM
Tiny
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Is this guy a shop? What does he say? Is he truck technician? Are we sure of his readings?

Pressure sounds very low.

Roy
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Friday, September 14th, 2012 AT 1:22 AM

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