98 GMC 4.3 v6. Cranks but won't start even if I spray gas in throttle body. I'm guessing spark issue but would like some tips before I work on after work. Any suggestions?

Asked by GuruD9N Mar 16, 2017 at 05:21 PM about the 1998 GMC Sierra 1500 C1500 SL Standard Cab Stepside SB

Question type: Maintenance & Repair

1 Answer

220,505

Yes, probably have no spark. First thing to do is to see if you can spin the rotor. It should not spin. Then check the cap and rotor for carbon tracks & cracks. The rotor would have a burn mark underneath in the center. Make sure the spark plug wires are in good shape. If you want to test any with a digital multi meter then it is 8000Ω per foot. If your not seeing anything obvious, then take the coil and the ignition control module to an auto parts store and have them tested. One other thing is it is possible the crankshaft sensor could be bad.

Your Answer:

CarGurus Experts

  • #1
    yetilikesbeer
    Reputation
    12,280
  • #2
    dragonflyoffshore
    Reputation
    11,440
  • #3
    John Saffrahn
    Reputation
    11,410
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Chevrolet Silverado 1500
222 Great Deals out of 9,112 listings starting at $2,900
Used Ford F-150
363 Great Deals out of 12,802 listings starting at $599
Used Chevrolet Silverado 2500HD
39 Great Deals out of 1,814 listings starting at $1,000
Used Dodge RAM 1500
85 listings starting at $2,500
Used Toyota Tacoma
43 Great Deals out of 684 listings starting at $9,975
Used GMC Yukon
17 Great Deals out of 941 listings starting at $5,998
Used Chevrolet Tahoe
18 Great Deals out of 859 listings starting at $9,980
Used Ford F-250 Super Duty
31 Great Deals out of 720 listings starting at $4,290

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.