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

100,625

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 of 1 people found this helpful.
775

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 of 1 people found this helpful.
715

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 2,684 nationwide Grand Prix listings starting at $1,500.

ZIP:

Pontiac Grand Prix Experts

  • #1
    Js08016
    Reputation
    4,390
  • #2
    Tom Demyan
    Reputation
    2,990
  • #3
    munron
    Reputation
    2,390
View All

Related Models For Sale

Used Chevrolet Impala
480 Great Deals out of 33,615 listings starting at $777
Used Pontiac Bonneville
518 listings starting at $1,799
Used Chevrolet Monte Carlo
16 Great Deals out of 1,304 listings starting at $1,950
Used Pontiac Grand Am
1,066 listings starting at $1,899
Used Ford Mustang
713 Great Deals out of 38,398 listings starting at $895
Used Chevrolet Camaro
385 Great Deals out of 30,498 listings starting at $3,500
Used Chevrolet Malibu
1,074 Great Deals out of 72,017 listings starting at $1,896
Used Pontiac Firebird
10 Great Deals out of 784 listings starting at $2,500
Used Honda Accord
1,033 Great Deals out of 60,523 listings starting at $999

Used Cars For Sale

2008 Pontiac Grand Prix For Sale
12 Great Deals out of 414 listings starting at $1,991
2007 Pontiac Grand Prix For Sale
9 Great Deals out of 370 listings starting at $1,675
2006 Pontiac Grand Prix For Sale
451 listings starting at $3,800
2005 Pontiac Grand Prix For Sale
350 listings starting at $1,500

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.