Question about 1997 Buick LeSabre

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Need to know crankshaft dampener pulley bolt head wrench size for 1997 Buick LeSabre

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I think it is 15/16

Posted on Jun 24, 2009

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I need to know the size of the bolt that hold the crankshaft pulley on.On a 1997 saturn sl 1 sohv


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Replacing water pump


Just a standard metric socket set a 10mm wrench, flat screwdriver( to place between two of the bolt heads to hold pump pulley in place so you can loosen bolts) just loosen don't remove yet you will need all to use screwdriver on

Apr 20, 2014 | 1997 Buick LeSabre

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Where is the crancksaft sensor and how do I replace it


The crankshaft sensor is located behind the crankshaft pulley, you will need to remove the pass/side tire and then the lower cover that covers the pulley area the remove the center crankshaft bolt and with a puller remove the pulley but first remove the surpentine fan belt then remove pulley next is to remove the plastic cover behind pulley, this is done by pulling it out then you will see the sensor, remove the connector and then remove the bolts holding it and out it comes, install new.

Jun 25, 2011 | 1997 Buick LeSabre

2 Answers

Where is the crankshaft sensor on a 3.8L in a 97 buick lesaber


Hi,
The sensor is located to the right of the crankshaft behind the vibration dampner (harmonic balancer). You will need a balancer puller and a special tool to space the new sensor correctly.
(can be done also with eye spacing, but the tool is recommended to ensure proper spacing as to prevent damage to new sensor and / or harmonic balancer.) You will also need a strap wrench to hold balancer pulley in place while removing and re-installing balancer to crankshaft bolt. (helper required)

Procedure for replacement:
Remove negative battery cable.
Set parking (emergency) brake.
Release tension on serpentine drive belt and remove belt from harmonic balancer pulley. ( large pulley at bottom of engine)
Break loose lug nuts on passenger side front tire, do not remove bolts yet.
Raise and support vehicle on passenger side, remove wheel.
Remove plastic splash guard (cover) from passenger side wheel well.
Remove dampner / balancer center retaining bolt (counterclockwise, it is torqued very tight.) Use a strap wrench around pulley and have a helper hold that in place while using a 1/2" breaker bar and socket to turn pulley bolt out of crankshaft. Be careful not to rotate engine in a counterclockwise direction while breaking the bolt loose.
Using balancer puller, remove dampner / balancer pulley from engine.
You will now see the crank sensor to the right of the crankshaft bolted to the timing cover.
Disconnect sensor wiring and remove retaining bolts, remove sensor.
Put new sensor in place and screw in bolts, do not tighten them yet.
Reconnect wiring to sensor.
Now use special tool to properly space sensor. If you cannot find one at the parts store, you can space the sensor with the balancer pully held in place (not installed yet) and space the sensor evenly with the veins on the hub of the balancer pulley. Take your time and be sure it is as evenly spaced as possible.
Tighten sensor bolts.
Clean balancer hub free of any oil and dirt deposits using brake or carbeurator cleaner.
Reinstall balancer to crankshaft by tapping around the inner surface of pulley with a rubber hammer.
It is a press fit, so be sure you have it started evenly and progress slowly in a circular motion to ensure you are keeping it aligned straight with the crankshaft.
Reinstall balancer bolt using the same method as removal, torque bolt to 110 foot pounds, then tap around balancer again twice with rubber hammer, turn the engine 2 full revolutions clockwise using the balancer to crankshaft bolt, then tighten bolt an additional 1/4 turn.
Replace splash guard, put wheel on tightening lugs to finger tight and then wrench tight in a star pattern.
Lower vehicle until wheel makes contact with floor, tighten lug nuts to 115 foot pounds in a star pattern using a torque wrench.
Fully lower vehicle, remove jack.
Re-install serpentine drive belt
Re-connect negative battery cable.

End of procedure....Hope that helps!.....Mike

Jun 25, 2011 | 1997 Buick LeSabre

1 Answer

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Hi, on the 1993 Buick Lesabre the crankshaft sensor is located under the dampener pulley. Remove the serpentine belt. Remove right front wheel. Remove plastic access cover thats behind that wheel. With an impact wrench remove dampener pulley bolt. With an Dampener pulley puller remove pulley. There is a plastic cover that snaps in place over the sensor, remove it, and you will have access to the sensor.

May 11, 2011 | 1993 Buick LeSabre

1 Answer

Car starts when cold, but dies as soon as it warms up


By the crankshaft pulley towards front of car. The crankshaft pulley "balancer" will need to be removed to replace the sensor and you will need and air impact wrench to remove and replace the big bolt . Also you will need the correct balancer puller to remove the balancer.

Aug 03, 2009 | 2004 Buick LeSabre

1 Answer

95 buick lesabre crankshaft pulley removal


i had used three bolts they have to be 6mm thik and like about 6 inches long then you install some flat washers by the head and use a regular crank pulley remover, you'll see three little holes inside the groevs at front side of pulley and there is where you install the bolts

Oct 19, 2008 | 1993 Buick LeSabre

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