Is it fuel pump, transmission, or spark plugs?

Asked by Jul 27, 2015 at 03:15 PM about the 2003 Chevrolet Malibu

Question type: Maintenance & Repair

two days ago i got gas at the store.  after getting the gas now when my car is in drive
it idles hard but is not bad when in park running.  i put heat in the car thinking it was
bad gas and injector cleaner with it in case it was some trash.  i just filled up again so
it cant be water in my gas.  the check engine light came on during all this and i had it
scanned and it said i had bad spark plugs.  Would that make it idle hard and make a
ticking noise.  or is it more of a transmission thing because it gets worse in drive?

2 Answers

17,875

Spark plugs would be the place to start. Pull and if you know how, clean them after you examine them for signs of fowling. Re-set the gap and put them back in. I'd change up the plugs and not put them in the same cylinder. It it improves somewhat, I'd consider getting new plugs. It is not a gas starvation issue it sounds. Bad plugs could cause slight knocking in the engine. Sometimes we need to trust the codes. Plug wires may be another suggested change out.

Changed spark plugs, wires, and coil still did not work. Took it to get looked at and he hooked a pressure gague to where my spark plug for cylinder 6 was. He said there was no compression on 6 so its my head gasket or valve. 1200 to 1500 dollars. Thanks for the help

Your Answer

Chevrolet Malibu Experts

  • #1
    T_S_T
    Reputation
    2,260
  • #2
    tenspeed
    Reputation
    2,190
  • #3
    Tom Demyan
    Reputation
    1,640
View All

Related Models For Sale

Used Chevrolet Impala
514 Great Deals out of 32,242 listings starting at $1,000
Used Honda Accord
852 Great Deals out of 88,504 listings starting at $1,444
Used Toyota Camry
1,107 Great Deals out of 76,443 listings starting at $1,100
Used Nissan Altima
1,175 Great Deals out of 74,524 listings starting at $900
Used Hyundai Sonata
600 Great Deals out of 54,111 listings starting at $1,500
Used Nissan Maxima
335 Great Deals out of 20,542 listings starting at $1,175
Used Kia Optima
502 Great Deals out of 31,920 listings starting at $2,450
Used Chevrolet Camaro
382 Great Deals out of 31,395 listings starting at $3,495
Used Honda Civic
623 Great Deals out of 52,143 listings starting at $1,491

Used Cars For Sale

2018 Chevrolet Malibu For Sale
4 Great Deals out of 20,325 listings starting at $14,257
2017 Chevrolet Malibu For Sale
300 Great Deals out of 9,475 listings starting at $10,999
2016 Chevrolet Malibu For Sale
220 Great Deals out of 6,935 listings starting at $7,900
2015 Chevrolet Malibu For Sale
178 Great Deals out of 5,010 listings starting at $7,000
2014 Chevrolet Malibu For Sale
98 Great Deals out of 2,171 listings starting at $6,900

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.