Changed Maf senor, crankshaft, fuses, spark plugs. fuel filter and ignition modulator and the car starts but only runs about five mins. before stalling. No engine light comes on. No bad codes show up. Can't find any bad hoses. My mechanic teacher has looked and we can't figure it out. I am a student and can't afford to fix much more and nothing I have spent money on has worked so far. When I first put the maf in the car worked great for about a week but the transmission was still skipping

10

Asked by ezpit Apr 10, 2015 at 09:47 AM about the 2002 Buick LeSabre Custom Sedan FWD

Question type: Maintenance & Repair

Changed Maf sensor, crankshaft, fuses spark plug fuel filter and ignition modulator. Checked hoses. No engine light comes on no bad codes show up.  After replacing maf the car worked great for a week but still skipped in the transmission..  NOw it starts and runs five min. before stalling.  Sounds great for the five mins.  My mechanic teacher has looked over and we are stumped.

2 Answers

10

Nothing showed up when we did the scan tool. Does it matter what brand senors you buy? Are there certain things that can go wrong that don't show up on the scan tool?

1 people found this helpful.

Recheck your fuel pressure while running before and after that 5 minute mark. I suspect your fuel pressure regulator or in-line fuel filter is the problem. If it is idling the whole time, check how clean the idle air valve is (mine was very dirty at 80K miles on my 2004 LeSabre...

Your Answer:

LeSabre

Looking for a Used LeSabre in your area?

CarGurus has thousands of nationwide listings and the tools to find you a great deal.

Postal Code:

CarGurus Experts

  • #1
    John Saffrahn
    Reputation
    4,100
  • #2
    txbarney
    Reputation
    3,230
  • #3
    joes098
    Reputation
    2,720
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Buick Regal
5 Great Deals out of 37 listings starting at $5,600
Used Toyota Camry
52 Great Deals out of 985 listings starting at $2,212
Used Honda Accord
40 Great Deals out of 910 listings starting at $1,599
Used Chevrolet Impala
9 Great Deals out of 107 listings starting at $4,632
Used Lincoln Town Car
7 listings starting at $9,995
Used Chevrolet Silverado 1500
202 Great Deals out of 5,975 listings starting at $2,975
Used Toyota Corolla
108 Great Deals out of 2,035 listings starting at $2,795
Used Honda Civic
180 Great Deals out of 3,705 listings starting at $1,995
Used Honda CR-V
103 Great Deals out of 3,896 listings starting at $1,795

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.