I am getting these codes on my son's 2005 Pontiac Grandprix. P0128 P0300.... One is showing Thermostat but he said he replaced that last year... Any clue?

Asked by Oct 06, 2015 at 08:40 PM about the 2005 Pontiac Grand Prix Base

Question type: Maintenance & Repair

Trying to fix car to sell.

1 Answer

254,705

P0300 is a generic misfire code, P0128 can be many things, including the thermostat and coolant temp sensor. Look at this link.....http://www.obd-codes.com/p0128

Your Answer

Pontiac Grand Prix Experts

  • #1
    Js08016
    Reputation
    4,390
  • #2
    Tom Demyan
    Reputation
    2,990
  • #3
    munron
    Reputation
    2,430
View All

Related Models For Sale

Used Chevrolet Impala
514 Great Deals out of 34,056 listings starting at $950
Used Dodge Charger
400 Great Deals out of 27,765 listings starting at $1,979
Used Pontiac Bonneville
3 Great Deals out of 532 listings starting at $1,799
Used Chevrolet Monte Carlo
12 Great Deals out of 1,304 listings starting at $2,500
Used Pontiac G6
56 Great Deals out of 3,935 listings starting at $1,295
Used Pontiac Grand Am
1,077 listings starting at $1,899
Used Ford Mustang
675 Great Deals out of 37,799 listings starting at $895
Used Pontiac GTO
8 Great Deals out of 471 listings starting at $5,995
Used Chevrolet Malibu
1,039 Great Deals out of 70,570 listings starting at $2,499
Used Chrysler 300
304 Great Deals out of 17,766 listings starting at $1,295
Used Honda Accord
1,070 Great Deals out of 61,078 listings starting at $1,099

Used Cars For Sale

2008 Pontiac Grand Prix Base For Sale
14 Great Deals out of 366 listings starting at $1,491
2007 Pontiac Grand Prix Base For Sale
5 Great Deals out of 284 listings starting at $1,675

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.