Engine rattling sound in 99 Mercury Sable sohc 3.0

Asked by GuruRVB85 Feb 05, 2020 at 06:16 PM about the 1999 Mercury Sable LS Sedan FWD

Question type: Maintenance & Repair

When I start the car it constantly sounds like marbles rattling around in the bottom of the engine while at idle. I haven't checked the converter heat shield yet, but I was thinking maybe the timing belt or tensioner might be worn. Any ideas?

1 Answer
41,240

TDolby answered 4 years ago

Yes, also check the idler pulley or belt tensioner. Remove the serpentine belt and spin the pulley's by hand to see if they are crunchy, spin very freely and or make noise. If they never were replaced, your due.

1 people found this helpful.
Mark helpful

Your Answer:

Related Questions

Shortcuts

Search Mercury Sable Questions

CarGurus Experts

  • #1
    JP1956
    Reputation
    1,940
  • #2
    Guy Outland
    Reputation
    800
  • #3
    Paul Tuck
    Reputation
    690
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Mercury Grand Marquis
2 listings
Used Nissan Altima
22 Great Deals out of 716 listings starting at $1,400
Used Toyota Camry
52 Great Deals out of 985 listings starting at $2,212

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.