Grand Prix V6-191 3.1L (1989)
Emissions Maintenance Light: Service and Repair
EGR Filter Replacement
EGR FILTER REPLACEMENT
The IEEGR (Integrated Electronic Exhaust Gas Recirculation) valve has a serviceable filter next to the vacuum tube that provides clean fresh air to the
regulator.
1.
Remove filter cover. Use extreme care to avoid breaking the electronic EGR cover and dislodging the vacuum regulator. This cover can best be
removed by prying each segment from the locking lip and gently rocking to remove.
2.
Remove EGR filter.
3.
Install new EGR filter.
EVAPORTIVE CANISTER FILTER REPLACEMENT
Every 24 months or 30,000 miles, the filter on an open bottom canister should be replaced.
1.
Remove all hoses from the top of the canister and mark. Remove the canister.
2.
Remove the filter element by squeezing it out from under the lip surface at bottom of canister and from under retainer bar, where used.
3.
Squeeze the new element under retainer bar, where used, and position it evenly around the entire bottom of the canister. Tuck the edges under the
lip of canister.
4.
Reinstall the canister to its original position on the vehicle, following normal service procedures.
5.
Reconnect the hoses to the top of the canister, according to the labeling on top of canister.
PCV VALVE & FILTER REPLACEMENT
The PCV system should be checked every 15,000 miles and also during regular engine tune-ups. If the PCV system includes a breather filter, located in
the air cleaner housing, this filter should be replaced whenever the PCV valve or air cleaner element is replaced. When a periodic inspection indicates
the PCV is not functioning properly, it should be serviced by replacement only.