by Gusmacker on March 20th, 2007

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How do i change the rear spark plugs on a 1991 grand prix? this unit has a 3.1 liter engine. i cannot get a wrench on the far right (passenger side)rear plug, which is broken.

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by scotty2006 on March 20th, 2007
You should have 2 engine mounts on the top of the engine that go between the engine and the radiator support. take both the through bolts out of these mounts at the engine place one of the bolts back in the front engine mount bracket without the mont in place. Use a prybar and roll the engine towards the frt of the car, on the bottom side of the other mount you will see an extra mounting hole line it up with the other engine through bolt and mount while the engine is rolled foward. This will allow you the clearance you need to get to the back set of plugs.
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You're reading How do i change the rear spark plugs on a 1991 grand prix? this unit has a 3.1 liter engine. i cannot get a wrench on the far right (passenger side)rear plug, which is broken. - which can also be phrased in the following ways:

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How do i change the rear spark plugs on a 1991 grand prix? this unit has a 3.1 liter engine. i cannot get a wrench on the far right (passenger side)rear plug, which is broken.

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How do i change the rear spark plugs on a 1991 grand prix? this unit has a 3.1 liter engine. i cannot get a wrench on the far right (passenger side)rear plug, which is broken.

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