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Posted on Apr 14, 2017
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Engine misses under acceleration. Spark plugs have been replaced, cables have been replaced engine module has been replaced.. Each time, after about a month, same problem reappears, with "Service Engine soon" lighting up on dashboard. Car was purchased new in March 2000. "service engine soon" showed up on dashboard after a few miles, and dealer replaced computer with one taken from another car in the shop. Has there been any history of malfunctioning computers on 2000 Buick LeSabres"? Spark

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Matt Tonning

Matt Tonning

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  • Posted on Nov 20, 2017
Matt Tonning
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What was the code via the "service engine soon" signal?

3 Related Answers

emissionwiz

Marvin

  • 85242 Answers
  • Posted on Apr 09, 2009

SOURCE: service engine light is on in my 2004 Buick LaSabre

the service engine soon light means a fault has occurred in the engine or emission system's electronic controls, it has nothing to do with any service you did in most cases, there are over 150 problems that turn the light on, to find out what the problem may be go to any Kragen Auto or Autozone parts store and ask them to run a OBD 2 trouble code test, IT IS FREE. then post the code back here for us to look at, which is also FREE.

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Anonymous

  • 36 Answers
  • Posted on May 29, 2009

SOURCE: 1990 buick lesabre when in drive seems like its in neautral

Hello, I'm not sure if you are still dealing with this problem, but here are a few tips.
1.When the car is running and at normal operating temperature, check the transmission fluid level. If the transmission fluid level is low, this will cause the Transmission to slip when in drive.
2.If you transmission fluid level is low, this usually indicates you have a leak. Transmission fluid does not need to be changed like other fluids such as oil.
3.You may also want to add a "stop slip" agent to you car, this may help or possibly correct the problem.
4.If all else fails, I would recommend you take you car into a certified Transmission shop. Please vote or rate this reply if you found this reply helpful.

al at yahoo

  • 115 Answers
  • Posted on Sep 15, 2009

SOURCE: 2000 Buick Park Avenue Service engine soon light

need to take car somewhere to have the code read with a scanner,try parts stores first some will do it for free if not the dealers have them

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Since the engine light is back on the code is likely to help you diagnose the problem.
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Sep 30, 2013 • Ford Mustang Cars & Trucks
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I have a 1995 Chevy S10 4.3L Engine. What would cause the engine to miss during acceleration??
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Jul 31, 2012 • Cars & Trucks
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How do you remove the ignition coil
Each ignition control module (ICM) has the following circuits:
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The PCM controls spark by pulsing the ignition control circuits to the ICM to trigger the coils and fire the spark plugs. The PCM and ICM are internally protected against shorts to power and ground on the ignition control circuits.

The spark plugs are connected to each coil by a short boot. The boot contains a spring that conducts the spark energy from the coil to the spark plug. The spark plugs are tipped with platinum for long wear and higher efficiency.


Ignition Control Module (ICM) Connectors

248af41.jpg

Fig. Ignition coil locations 2001-2004 4.8L, 5.3L, 6.0L Engines



Removal & Installation
2.2L (L61) Engine
  1. Turn OFF the ignition.
  2. Remove the accelerator cable from the bracket.
  3. Remove the accelerator cable bracket bolt.
  4. Remove the accelerator cable bracket.
  5. Disconnect the ignition control module (ICM) harness connector.
  6. Remove the ICM retaining screws.
  7. Remove the ICM from the ignition coil housing.

To install:
  1. Install the ignition control module in the ignition coil housing.
  2. Install the ICM retaining screws. Tighten the retaining screws.
  3. Connect the ICM harness connector.
  4. Install the accelerator cable bracket.
  5. Install the accelerator cable bracket bolt. Tighten the retaining screws.
  6. Install the accelerator cable to the bracket.

2.2L (Ln2) Engine
  1. Remove the air cleaner outlet from the air cleaner.
  2. Remove the ICM electrical connectors (1) and spark plug wires (2).
  3. Remove the ignition coils bolts (3).
  4. Remove the ignition coils and ICM assembly.
  5. Installation is the reverse of the removal procedure.

2.4L Engine
  1. Disconnect the negative battery cable.
  2. Remove the accelerator cable from the hold down clip.
  3. Remove the cruise control cable, if applicable.
  4. Remove the bolt from the fuel line retaining clip.
  5. Disconnect the 11-pin harness connector for the ignition control module (ICM).
  6. Remove the bolts from the ignition coil and the ICM assembly-to-camshaft housing.
  7. Remove the ignition coil and ICM assembly from the engine.
  8. Remove the screws that retain the housing to the cover.
  9. Disconnect the coil harness connector from the ICM.
    CAUTION When removing the housing from the cover, make sure the ground strap stays in place.
  10. Remove the housing from the cover.
  11. Remove the screws that retain the ICM to the cover.
  12. Remove the ICM from the cover.

    9f8592c.jpg
    Fig. Removing the ICM from the camshaft cover

To install:

CAUTION DO NOT wipe grease from the module or coil if the same module is to be replaced. If a new module is to be installed, a package of silicone grease will be included with the module. Spread the grease on the metal face of the module and on the cover where the module seats. This grease is necessary for module cooling.
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  2. Install the screws that retain the ICM to the cover.
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  10. Connect the ICM 11 pin harness connector.
  11. Install the bolt to the fuel line retainer clip.
  12. Install the accelerator cable into the hold down clip.
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Hope this help (remember comment and rated this).
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