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P0404 2000 cadillac dts

The p0404 code is showing up on my 2000 cadillac dts what could this be?

Posted by Anonymous on

6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

michigan man
  • 3533 Answers

SOURCE: 2008 Cadillac DTS navigation manual

try www.edmonds.com

Posted on Mar 21, 2009

motor1258
  • 6674 Answers

SOURCE: Check engine light on, 1997 cadillac Deville.PCM codes

PO135 is oxygen sensor Bank1 sensor1. PO404 is EGR.
personally, I'd pull EGR off, clean pintle good with throttle body cleaner or carb cleaner, re-install, erase codes & try it for a while & see if it code(s) come back.

Posted on May 07, 2009

  • 521 Answers

SOURCE: I have a 2000 Cadillac DTS. It steers hard at low

power steering pump is/may be going bad or the rack and Pinion unit could be bad.

Posted on Jul 31, 2009

  • 1986 Answers

SOURCE: rear door panel 2002 cadillac dts

You'll need to remove screws that are by the door handle, arm rest, under door and side of door and then gently pull back on the panel as there will also be retaining clips attached and you don't want to break them. You'll need to lift the door panel upwards in order to get it off the window ledge. If needed, you can pull back the weather seal (can't reuse it, but it's not that important) and you will be able to access everything inside the door

Posted on Aug 14, 2009

  • 18 Answers

SOURCE: my 2000 cadillac dts keeps

could be head gaket faliure have it block tested

Posted on Nov 08, 2009

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2000 Cadillac Deville DTS 4.6L HO Northstar


Well, I don't think so. The pressure sensor will throw its own code (0450, 0451, 0452, 0453, or 0454). And likewise, the fuel level sender or sensor could also throw its own codes (P0460-P0464).

I'm not sure the level sensor and the pressure sensor are linked together. They are separate on a 2005 buick century, the pressure sensor being at the top of the tank located on the fuel pump module, but Cadillac: anything is possible.

Since you replaced the purge solenoid, there may be a problem in the circuit. The purge should have battery voltage to it with the key on. The ECM will ground the circuit internally when the purge is wanted. One symptom of a purge valve that isn't working or stuck closed can be a whooshing sound when the fuel tank cap is opened, indicating excessive pressure in the tank.
A shop's scan tool could be used to command the purge valve on to check it.

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2006 cadillac DTS service parking assist


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Why would a 2002 cadillac dts shut off while driving


check the crackcase, or crankshaft circuits A or B.. or both..not sure.. which one. but i had similar problem,, i went and bought a code reader and that helped me out alot, with what i had to change.. good luck..

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