2001 w/coolant leak at intake manifold

[woundedknee]

Got a 2001 SLE which is showing signs of a coolant leak out of the bottom front driver-side of the intake manifold. I know there were problems in the past (98-99) with plastic manifolds.

Does the 2001 still have the plastic manifold?
Anyone else see this?

Thanks

[markwb]

The 2001 Bonnevilles do have the composite material (plastic) upper intakes. Check the area around the throttle body to upper intake junction. There is a gasket there, check it with an inspection mirror.

[woundedknee]

Thanks Mark. I'll check it out.

Nice bonnie! Factory color?

WN

[markwb]

Thanks, the color is Maple Red Metallic, and it is factory.

[SatchBoogie]

Originally Posted by woundedknee

Got a 2001 SLE which is showing signs of a coolant leak out of the bottom front driver-side of the intake manifold. I know there were problems in the past (98-99) with plastic manifolds.

Does the 2001 still have the plastic manifold?
Anyone else see this?

Thanks

On my mom's 2002, i already had to replace the stupid plenum(plastic molding) because there was a coolant leak. You might want to look into that if its cracked anywhere. It's quite a job, but you will save a lot on labor.

[auto trainy]

Pressure test the cooling system to be sure its the plenum and not the lower intake manifold gasket,there were some issues with those also,I wouldn't want to put on a plenum and have to do the job over for a lower intake gasket,Good Luck

[jdq]

Either way do the lower anyways while your in there.