my car is running temp all the way on hot and loosing power to 25-30mph for about 5min then pick back up. The manchine read a code p0446 can you tell me whats going on

Asked by Jan 13, 2013 at 02:41 PM about the 2002 Pontiac Grand Prix SE

Question type: Maintenance & Repair

3 Answers

107,645

P0446 Evaporative Emmission Control System Vent Control Circuit - A code P0446 could mean one or more of the following has happened: Faulty vent valve -- Open, short or excessive resistance on Vent valve control circuit -- Blockage of vent valve -- Bad PCM

1 people found this helpful.
805

check to see if your rad fan is working, could be a bad fan or relay or something, causing it to run hot, it will reduce power once it starts gettin to hot to "protect" itself from damage, the p0446 code is correct on the emission control system, and again it could be a bad vent solenoid or a blockage in a vent line from the gas tank, pretty sure the 2 arnt connected unless the pcm is faulty and causing bad communication between sensors and stuff

1 people found this helpful.
795

PCV valve, http://www.carpartsdiscount.com/auto/parts/2002/pontiac/gran d_prix/pcv_system/pcv_valve_kit.html?3593=260504 (i had an 01 GT from 46,560 to 206,980 meaning i personally drove it 156,420 miles)

Your Answer:

Grand Prix

Looking for a Used Grand Prix in your area?

CarGurus has 1,771 nationwide Grand Prix listings starting at $800.

ZIP:

Pontiac Grand Prix Experts

  • #1
    Js08016
    Reputation
    4,710
  • #2
    Tom Demyan
    Reputation
    3,290
  • #3
    munron
    Reputation
    2,810
View All

Related Models For Sale

Used Chevrolet Impala
448 Great Deals out of 25,776 listings starting at $950
Used Pontiac Bonneville
334 listings starting at $3,800
Used Chevrolet Monte Carlo
3 Great Deals out of 906 listings starting at $3,498
Used Pontiac Grand Am
726 listings starting at $1,900
Used Ford Mustang
273 Great Deals out of 37,795 listings starting at $1,350
Used Chevrolet Camaro
232 Great Deals out of 27,541 listings starting at $2,800
Used Chevrolet Malibu
465 Great Deals out of 51,837 listings starting at $1,975
Used Pontiac Firebird
6 Great Deals out of 667 listings starting at $4,700
Used Buick Regal
83 Great Deals out of 4,008 listings starting at $5,300
Used Honda Accord
539 Great Deals out of 104,189 listings starting at $950

Used Cars For Sale

2008 Pontiac Grand Prix For Sale
288 listings starting at $3,995
2007 Pontiac Grand Prix For Sale
259 listings starting at $2,495
2006 Pontiac Grand Prix For Sale
6 Great Deals out of 295 listings starting at $1,495
2005 Pontiac Grand Prix For Sale
228 listings starting at $5,000

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.