car runs 17 minutes dies will not start next day will start replaced elecrontic modular & coil pack now wont start at all

Asked by Aug 20, 2012 at 10:09 PM about the 1990 Buick Riviera

Question type: Maintenance & Repair

1 Answer

3.8L? We ran into this with a LeSabre, it did not have any trouble codes, just would die for no reason, then no start, would start with N/P in 1 to 2 hours. Fixed problem by replacing the crank sensor, it is behind harmonic balancer, follow wires down on front side of engine to find it (around crank pulley). This sensor is inexpensive and replaced easily on our car with just a couple of bolts mounting it, just make sure slots on sensor are aligned to the 2 timing discs on back side of harmonic balancer. I was told we needed to remove harmonic balancer but that was not the case for us. It is possible that during the coil pack/ignition module replacement crank sensor wires were pulled a bit and broke the already cracked sensor. Place for you to check, Hope this helps! Mike

1 of 1 people found this helpful.

Your Answer

Buick Riviera Experts

  • #1
    Alvin1966
    Reputation
    1,110
  • #2
    Chris Kelley
    Reputation
    550
  • #3
    Jason Zane
    Reputation
    410
View All

Related Models For Sale

Used Buick Regal
172 Great Deals out of 9,147 listings starting at $2,500
Used Ford Mustang
673 Great Deals out of 37,867 listings starting at $895
Used Chevrolet Camaro
401 Great Deals out of 30,711 listings starting at $3,550
Used Chevrolet Caprice
186 listings starting at $10,595
Used Chevrolet Corvette
282 Great Deals out of 20,584 listings starting at $2,990
Used Buick LeSabre
22 Great Deals out of 1,837 listings starting at $999
Used Buick Park Avenue
422 listings starting at $3,995
Used Cadillac DeVille
5 Great Deals out of 1,620 listings starting at $1,995
Used Pontiac Grand Prix
29 Great Deals out of 2,725 listings starting at $1,491

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.