I scanned my 2000 grand am 2.4l got code p0300 i changed batt.starter.alternator.plugs etc. Starts and runs now but back fire's, has no power and engine shacks bad ontell About 3000 rpm??

Asked by Lou Jan 23, 2015 at 12:32 AM about the 2000 Pontiac Grand Am SE

Question type: Maintenance & Repair

3 Answers

1,645

Google obd 2 p0300 battery starter alternator were waste of $. This may have a multiple coil pack for the ignition spark. I would start there. There are quite a few things to consider. I'm surprised there isn't more than random miss fires. That is why I would start at the coil paxk.

425

change your spark plug wires and coils. also your fuel injectors may be clogged. get a hei spark tester and do a spark test on your coils. You can get coils for 17.98 each at www.partsgeek.com.

Your Answer:

Grand Am

Looking for a Used Grand Am in your area?

CarGurus has 64 nationwide Grand Am listings and the tools to find you a great deal.

ZIP:

Own this car?

Share your experience with others.

2000 Pontiac Grand Am

Review another car

CarGurus Experts

  • #1
    tenspeed
    Reputation
    10,970
  • #2
    james sparrow
    Reputation
    2,360
  • #3
    John Saffrahn
    Reputation
    2,280
View All

Know more, shop wisely

Search

Related Models For Sale

Used Pontiac Grand Prix
196 listings starting at $2,995
Used Pontiac Firebird
11 Great Deals out of 368 listings starting at $5,950
Used Ford Mustang
901 Great Deals out of 22,477 listings starting at $2,000

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. Content will be removed if CarGurus becomes aware that it violates our policies.