Huge win for car owners! All TSBs to be made public. The Center for Auto Safety just made the NHTSA (US Government) make public the full text of all TSBs from now on. They are the same organization that has petitioned the NHTSA & filed lawsuits to protect car owners over exploding gas tanks & other major safety issues. Whenever you drive in your car, you are safer thanks in part to a lot of work over the years by this small but very effective consumer advocacy group.

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Runs Roughly, Stalls Seal Of Avoid Like The Plague


pretty bad
Typical Repair Cost:
Average Mileage:
113,937 miles
Total Complaints:
6 complaints

Most Common Solutions:

  1. not sure (5 reports)
  2. replace manifold pressure sensor (1 reports)
1999 Pontiac Grand Am engine problems

engine problem

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1999 Pontiac Grand Am Owner Comments

problem #6

Sep 232010

Grand Am SE V6

  • Automatic transmission
  • 119,000 miles


Car runs roughly low idle, when in park- it runs high idle. Was intermittent for months, now is constant and check engine light came on. Pontiac has serious issues, thinking of trading this piece of junk in if it costs me too much again! Just got ignition lock replaced for $900 in July, I've had it with this car! 5 years ago I reported the infamous window regulator problem--haven't rolled down any four of my windows since then in fear they will break and cost me mega bucks!! My other grand am has same window problems, I also don't roll them down. Air vent knob even fell off!

No more pontiacs for me, I will run this one to the ground since it is probably worthless to use as a trade-in!

- , Oroville, CA, USA

problem #5

Jul 172010

Grand Am ES 2.4L V4

  • Automatic transmission
  • 126,624 miles

Rough idle after warming up, stall in turns, RPMs up and down, spits and sputers when giving it the gas. The manifold pressure sensor needs to be replaced.

- , Saratoga Springs, NY, USA

problem #4

Dec 012009

Grand Am SE 3.4L V6

  • Automatic transmission
  • 124,000 miles

I live in Wisconsin and we have some cold weather right now. My coolant is currently leaking and I am looking into that problem, but my car is having trouble starting. I originally thought it was because of the cold weather, but my car sits in my garage? Prior to the cold weather, I did notice it seemed like my car was hesitating when I would step on the gas. I really didn't think this was a big deal. With all the other problems I am having with this car, I am wondering if this is part of the problem. Any ideas?

- , Muskego, WI, USA

problem #3

Mar 282007

(reported on)

Grand Am GT V6

  • Automatic transmission
  • 127,000 miles


As ive discovered about 10:45 at night 10 miles from the place i was staying, GRAND AM'S SUCK!!!! Mine had stalled and died once a week ago while the mechanics were changing the oil, installing new air filters, running a bottle of fuel injector cleaner through it..... Only died once since that, at a stoplight, and restarted fine with no problem. Drive probably 40-55 miles and as im in the middle of a back country s curve, it dies as im coming out of the first turn. Restarts but sounds like it will blow the hell up, RPM's are running high, and the minute you put it into drive it kills the engine and wont start for a minute. Towed the car to house, father thinks it is a clogged fuel filter, something messing up in the fuel lines... not really sure as of yet. I hate this car, only got it because my toyota messed up and had to have a car for work 3 years ago. Parts are expensive, labor is high to install said parts, and not worth the money. I was planning to sell the car last month and purchase my recently deceased grandfather's pickup to help g-ma out, but now have to pay somewhere probably between 500-1000 to get this damn car able to sell for what i owe on it. Piece of crap, would never let anyone i know buy a pontiac.

- , Topeka, KS, USA

problem #2

Apr 192006

(reported on)

Grand Am SE

  • 150,000 miles

am now having this problem with my grand am but I can not drive it! The previous poster had this problem for three years, are you still driving it? Mine randomly stalled out at a light on my way home and then continued to stall out unlesss I gave it gas. When I got home I opened the hood to a burning smell and a little bit of smoke. The car idles and drives so hard it feels like going up hill on a wooden rollercoaster. Have you found anyone who knows what the problem is yet? Have you taken it to Pontiac dealerships? My problem is it crapped out at the wrong time and its my only car! I have no money to randomly pay mechanics to tell me they dont know! This isnt the only problem I have had with this damn car my parents handed down to me. NEVER BUY THIS CAR, EVER!

- , Richmond, VA, USA

problem #1

Mar 242003

(reported on)

Grand Am

  • 37,000 miles

jerks and dies while taking off and idling. had these same problems for 3 yrs. now and not one mechanic out of numerous different ones, can locate the problem.

- , Lake Charles, LA, USA

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