Question about 1999 Buick LeSabre

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Clean egr valve on 2000 lesabre - 1999 Buick LeSabre

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6ya6ya
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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

  • 975 Answers

SOURCE: Can't find the pcv valve on a 2000 Buick LeSabre.

assume this is a 3800,pcv is on pass side of plastic intake manifold,small plastic locking collar has an arrow on it ,says pcv

Posted on Mar 01, 2009

  • 105 Answers

SOURCE: 2000 Buick LeSabre Will not start Replaced cam

Multiple engine misfire is related to the coils and the ignition control module. I have a 2002 with the 3.8 engine. It has three coils. I just went through this problem. I bought one coil and tried it in each position with no improvement. It was the ignition control module. Mine is located under the three coils. A relatively easy item to replace. Cost about $140.

Posted on Apr 19, 2010

ZJLimited
  • 17970 Answers

SOURCE: 2001 buick lesabre volts goes from 14.5 to 12 and car shuts off mid ride and when in neutral. replaced egr cleaned maf still same problem

DTC P0128 - Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature)This means that the engine's PCM detected that the engine has not reached the required temperature level within a specified amount of time after starting the engine. The intent of the P0128 code is to indicate a faulty thermostat. Experience indicates that the most likely solution is to replace the thermostat.
DTC P0107 - Manifold Absolute Pressure/Barometric Pressure Circuit Low InputThe Manifold Absolute Pressure (MAP) sensor responds to changes in the intake manifold pressure (vacuum). 5 Volts is supplied to the sensor from the PCM (powertrain control module). Inside the MAP sensor is a resistor that moves in relation to manifold pressure. The resistor varies the voltage between about 1 volt to 4.5 volts (depending on engine load) and that voltage signal is returned to the PCM to indicate manifold pressure (vacuum).
This signal is essential for the PCM to determine fuel delivery. A P0107 DTC is set when the PCM sees that the MAP signal voltage is less than .25 volts which is too low. Confirm this measures conditions.

Keep in mind that will need using a scan tool with the Key on and engine running, monitor the MAP sensor voltage. If it is reading less than .5 volts, turn engine off, unplug the MAP sensor and, using a DVOM (Digital Volt/Ohm Meter) check for 5Volts on the 5 Volt reference circuit.


DTC P0401 - Insufficient EGR Flow
This fault code most likely means one or more of the following has happened:

  • The DPFE (differential pressure feedback EGR) sensor is faulty and needs to be replaced
  • There is a blockage in the EGR (tube), most likely carbon buildup
  • The EGR valve is faulty
  • The EGR valve may not be opening due to a lack of vaccuum


Now, about the possible solutions in fixing this code, it is quite common for people to just replace the EGR valve only to have the OBD code return. The EGR valve is not always the culprit.
  • Use a vacuum pump and pull the EGR valve open while monitoring engine RPM's & DPFE voltage. There should be a noticable difference in RPM's with the EGR open
  • Clean out the EGR valve and/or tubing to remove deposits
  • Check the voltage at the DPFE, compare to specified values (refer to a repair manual for your specific model)
  • Replace the DPFE sensor (with a good quality / OEM one)
  • Replace the EGR valve


Hope this helps; also keep in mind that your feedback is important and I`ll appreciate your time and consideration if you leave some testimonial comment about this answer.



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Posted on Aug 23, 2012

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1 Answer

What would be the first and most likely reason for my 1997 buick lesabre to be giving me a egr pintle position circuit malfunction?


This code indicates a problem with the EGR valve's pintle position. The EGR Valve's pintle could just be stuck in which case the problem could be fixed by cleaning the EGR valve.

If the EGR valve is electronically controlled or cleaning the valve does not fix the problem, you will most likely have to replace the EGR Valve.

Keep in mind that the EGR valve relies on inputs from other sensors to determine the pintle position. If one of these other sensors is not operating correctly, it could be giving you a false P1406 error code.

Dec 19, 2012 | 1997 Buick LeSabre

1 Answer

1990 lincoln towncar runs rough and wont idle. could it be egr valve


What you may find will help is to remove the air horn and clean a passage leading to the EGR valve. The passage should be at the base of the airhorn and underneath the gasket. There should be 8 bolts and a $10 gasket to change.

Your car type is set for a 1990 LeSabre and the written part indicates a Towncar. My fix is for the Towncar.

Apr 13, 2012 | 1990 Buick LeSabre

1 Answer

Runs rough under load ,stalls and won,t free rev over 4000 rpm. Acts like rev limiter kicks on.


Hi

one of 3 faults

1 MAF sensor also Known as air mass sensor
2 EGR valve, this is most common with the 4000 rev limit and a top speed of say 50 mph
3 air leaks or tears in air pipes or poor seals.

I would be tempted to clean both the EGR and MAF sensor before spending any money though, these parts ofetn work much lonegr when clean

Regards

Dan

need more info get back to me

Jan 03, 2011 | 2000 Buick LeSabre

1 Answer

2000 buick lesabre sometimes runs fine sometimes not. rough pulsating idle and stalls when slowing or coming to stop and I already replaced fuel filter. I am having trouble figuring out what the problem...


Change the EGR valve and the problem should be a part of the pass..........good plugs and wires............Hope this helps .......common problem .

Oct 16, 2010 | 2000 Buick LeSabre

1 Answer

2000 buick lesabre engine code p1404


P1404 - Exhaust Gas Recirculation (EGR) Closed Position Performance The egr valve is stuck possibly due to carbon buildup. It may be possible to remove the egr valve and clean it with throttle body cleaner or induction cleaner.If the pintle can not be unstuck then the valve egr will probably need replaced.

Sep 21, 2010 | 2000 Buick LeSabre

2 Answers

Location of EGR sensor


the EGR valve in your Buick LeSabre. The EGR valve is located on the driver's side of the engine bay, near the brake fluid reservoir. Since all EGR valves look basically the same, hope this helps

Sep 19, 2010 | 1994 Buick LeSabre

1 Answer

My 2000 Buick Lesabre has the engine code: 1404 Auxilliary Emissions Control rang up...Please tell me what this means?


I believe that is for you EGR valve(exhaust gas resurculation valve). it may be the valve itself of one of the vacume switching valves that are acociated with it. just fixed this on my RAV4.

Jul 18, 2010 | 2000 Buick LeSabre

2 Answers

1992 Buick LaSabre. Where is the EGR valve?


The EGR valve may have a protective cover on it:
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After removing the cover, the egr valve is beneath, you will need to remove retaining clips to remove the egr valve.

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Sep 04, 2009 | 1992 Buick LeSabre

1 Answer

EGR Valve


Check egr solenoid first . Disconnect electrical connector with key on engine off. Should have manifold vacuum to egr hose Reconnect. Should have no vacuum at egr hose

Jan 22, 2009 | 2001 Buick LeSabre

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