high idle

Asked by Feb 27, 2016 at 05:32 PM about the 2003 Buick Century Sedan FWD

Question type: General

I replaced the maf, pcv, tps. Still it doesnt idle. I unplug the maf, idle kicks up to maybe 2000 rpms.....any sugestions ?

6 Answers

12,980

scan for codes. possibly idle air control valve.

Ive changed the idle air control valve, still high idle....

12,980

Could be sucking air somewhere, check for vac leaks.

When I unplug the maf, the idle kicks up, I plug it back up and the motor dies. know I didn't mention that earlier. Does that help find a possible solution or pin point the vacuum that could be causing the problem ?

350

Common Century problem is the TPS. It rarely sets off a code is why it's so hard to diagnose. To change one on a late model Century, get a T20-3/8 socket with an extension to get it off. A T20 screwdriver is tight and you might not be able to get your hand in there to grip it. Don't get one of those cheap $5 EBay TPS specials, unless you don't might changing it 4 times a year!

1 of 1 people found this helpful.

If you unplug the maf and it runs betier and you plug it back in and it stalls then it's your maf!!! 100%

Your Answer

Century

Looking for a Used Century in your area?

CarGurus has 696 nationwide Century listings starting at $2,500.

ZIP:

Buick Century Experts

  • #1
    John Saffrahn
    Reputation
    1,030
  • #2
    Tom Demyan
    Reputation
    870
  • #3
    John Pate
    Reputation
    630
View All

Related Models For Sale

Used Buick Regal
137 Great Deals out of 5,215 listings starting at $2,495
Used Buick LeSabre
5 Great Deals out of 1,490 listings starting at $1,299
Used Chevrolet Impala
506 Great Deals out of 32,201 listings starting at $1,000
Used Buick Park Avenue
352 listings
Used Chevrolet Malibu
1,006 Great Deals out of 53,953 listings starting at $1,599
Used Toyota Camry
1,093 Great Deals out of 76,390 listings starting at $1,100
Used Honda Accord
795 Great Deals out of 88,963 listings starting at $1,444
Used Cadillac DeVille
1,414 listings starting at $1,899
Used Chevrolet Monte Carlo
5 Great Deals out of 1,187 listings starting at $1,125
Used Ford Taurus
181 Great Deals out of 16,161 listings starting at $1,900
Used Honda Civic
601 Great Deals out of 52,198 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.