Abs, TCS and 2 codes

Asked by Feb 19, 2015 at 10:25 AM about the 2003 Pontiac Grand Prix GTP

Question type: Maintenance & Repair

I have a 2003 grand prix gtp. I am having a problem with the
abs, TCS and the check engine light flashing. The engine
light is for no.4 cylinder misfire and no.4 injector.  Now all
this happens at once and it makes the engine run ruff. Any
ideas?

5 Answers

60

Well as far as the abs and traction control thats the front hubs ( bearings) as far as the misfire that could be a bad plug or wire or bad coil. The other side of that could be a faulty injector .

I put a new wheel beraring on it. once and awhile when I start the engine it runs real ruff, scanner says injector 4 malfunction and cylinder 4 misfire. service engine soon light starts flashing and the abs and TCS lights come on. After a few minutes the engine clears up and the abs light goes of till it hit the brakes.

4,175

Did you do both wheel bearings? Wheel sensors can also be a problem and worn out axle shafts also seem to cause problems with ABS and TCS.

60

Yes I agree with munron always do both hubs. It's a gm flaw. All gm cars with the sensor in the bearing are a pain. The misfire .... there is only two things to look at ,,,spark and fuel.

It's just weird how they all happen at the same time. I've had both front hubs tested and they check out good.

Your Answer

Grand Prix

Looking for a Used Grand Prix in your area?

CarGurus has 2,751 nationwide Grand Prix listings starting at $1,200.

ZIP:

Pontiac Grand Prix Experts

  • #1
    Js08016
    Reputation
    4,370
  • #2
    Tom Demyan
    Reputation
    2,970
  • #3
    munron
    Reputation
    2,350
View All

Related Models For Sale

Used Chevrolet Impala
572 Great Deals out of 34,619 listings starting at $1,000
Used Pontiac Bonneville
524 listings starting at $1,799
Used Chevrolet Monte Carlo
12 Great Deals out of 1,347 listings starting at $995
Used Ford Mustang
740 Great Deals out of 42,668 listings starting at $1,300
Used Pontiac Grand Am
1,085 listings starting at $1,599
Used Chevrolet Camaro
429 Great Deals out of 31,674 listings starting at $2,395
Used Pontiac GTO
12 Great Deals out of 465 listings starting at $5,995
Used Chevrolet Malibu
1,246 Great Deals out of 77,953 listings starting at $1,500
Used Pontiac Firebird
12 Great Deals out of 817 listings starting at $1,900
Used Honda Accord
997 Great Deals out of 62,552 listings starting at $999

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.