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91 buick remove the vacuum modulator

To reach thermostat

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  • Cars & Trucks Master
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Im thinkin youre on the wrong side of the car....

Posted on Dec 26, 2013

  • 1 more comment 
  • mike
    mike Dec 26, 2013

    The ctuise control stuff is blocking the thermostat

  • mike
    mike Dec 26, 2013

    & I can't find all the nuts to remove it.

  • mike
    mike Dec 26, 2013

    Add a CommentBastard engineers don't want you to fix your own car

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I have a 2006 Buick Lucerne V6 code po128 comes up. What does it mean?


P0128 BUICK P0128 BUICK - Engine Coolant Temperature Below Thermostat Regulating Temperature Repair Importance Level: 3/3 Repair Difficulty Level: 2/3 help.jpg Share facebook.png twitter.png linkedin.png google-plus.png sep.png print.png pdf.png share.jpg 3 comments.png ' Add Comment xicon.jpg http://www.autocodes.com/p0128_buick.html Forum Code Possible causes - Leaking or stuck open thermostat
- Low engine coolant level
- Insufficient warm up time
- Faulty engine coolant temperature sensor
- Engine coolant temperature sensor harness is open or shorted
- Engine coolant temperature sensor circuit poor electrical connection
help.jpg What does this mean? Tech notes If cooling system is not leaking and the fluid level is OK, replacing the thermostat usually takes care of the problem.
help.jpg What does this mean? When is the code detected? If the Powertrain Control Module (PCM) detects the calibrated amount of air flow and engine run time have been met, and the Engine Coolant Temperature (ECT) has not met the minimum thermostat regulating temperature, the code P0128 will set. Possible symptoms - Engine Light ON (or Service Engine Soon Warning Light) P0128 Buick Description An Engine Coolant Temperature (ECT) sensor monitors the temperature of the coolant. This input is used by the Powertrain Control Module (PCM) for engine control and as an enabling criteria for some diagnosis. The air flow coming into the engine is accumulated and used to determine if the vehicle has been driven within the conditions that would allow the engine coolant to heat up normally to the thermostat regulating temperature. If the coolant temperature does not increase normally or does not reach the regulating temperature of the thermostat, the diagnostic that use ECT as enabling criteria may not run when expected.



Read more: http://www.autocodes.com/p0128_buick.html#ixzz3vprh5jzz

Regarding which thermostat to use, I am guessing it depends on where you live.

Ask these people when you order the thermostat.

http://www.autopartswarehouse.com/shop_years/buick-lucerne-thermostat-2006.html

Dec 30, 2015 | 2006 Buick Lucerne

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Where on transmission is the modalator valve located on a 99 Buick century 3.1


Should be on the side of the transmission with a vac hose attached.

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What does code p0446 mean on a 2001 Buick Centry?


P0446 Evaporative Emission Control System Vent Control Circuit Malfunction The code P0446 is set when the engine computer recognizes a fault or restriction at the vent control part of the Evaporative emission control system (EVAP). The description of the fault varies between different car manufacturers, but one thing is common, the code P0446 doesn't directly point to a defective part; some testing might be required to pinpoint the faulty component. What can cause the code P0446: - faulty vent control valve - blockage at the vent hose, vent filter or vent control valve - open or short in the vent control valve circuit - bad charcoal canister - EVAP system leak - faulty EVAP system pressure sensor - bad vacuum switching valve (VSV) - stuck open purge valve (solenoid)

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Buick Lesabre


i would check a couple things, the vacuum modulator and the passing gear cable, a clogged filter will not prevent it from not shifting, it would slip instead so that can pretty much be ruled out.
you have the old school 3800 and they have decent transmissions.

Sep 01, 2012 | Cars & Trucks

1 Answer

Need to replace thermostat for a 3.3 liter buick century motor. 92 model.


when engine is cold,.Remove the bolts holding the coolant outlet housing to the engine, using a socket wrench and an 8 mm socket. On cruise control equipped models, you'll need to remove the vacuum modulator bracket from the coolant outlet housing with the socket and wrench first.

Pull the coolant outlet housing off the engine, by hand. Shove a rag into the outlet housing to prevent debris from entering the engine.

Clean the sealing surface on the engine and housing, using a gasket scraper. Wipe the area clean with a rag. Apply a 3 mm bead of RTV gasket maker into the gasket groove on the housing. Place the new thermostat into the housing, making sure it has the same orientation as the old thermostat. Bolt the housing to the engine, using the socket wrench and socket (and reattach the vacuum modulator if you removed it earlier). Start the engine and let it run until the temperature gauge reaches operating temperature. Fill the coolant overflow tank to the "Hot Fill" mark with a 50-50 mixture of Dexcool and distilled water. Inspect for leaks around the coolant outlet housing. good-day ! drain radiater if need be to change thermostat.




Jan 14, 2012 | 1992 Buick Century

1 Answer

How do you install a vacuum modulator in a 94 regal


Remove the vacuum line at the modulator. Remove the bolt and the modulator assembly retainer. Remove the modulator assembly. Reverse order to install.

NOTE: if the modulator valve comes out of the bore when removing the modulator vacuum assembly, note the orientation of the valve and reinstall it in the bore before installing the new vacuum modulator assembly. (see picture)


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1 Answer

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The first thing is to check the transmission fluid level, then check the vacuum modulator located out on the side of the transmission, and be certain that the vacuum line is connected to the vacuum modulator, and that the vacuum line also has no leaks and it is connected to an intake manifold vacuum source. If you remove the vacuum line from the vacuum modulator and if there is any transmission fluid is in the vacuum line then the vacuum modulator is faulty and it will need to be replaced.


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2 Answers

1993 buick century 3.3 transmission modulator help


it is located on the side of the transmission case, it has a vacuum hose going to it, make sure that hose is good and has vacuum from the engine going to the modulator, here is a picture of the modulator so u can ID it.

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