2003 GMC 1500 NO SPARK

20

Asked by cheydon Sep 11, 2018 at 05:46 PM about the 2003 GMC Sierra 1500 STD Extended Cab LB

Question type: Maintenance & Repair

VEH WILL CRANK BUT HAS NO SPARK? NO CODES PRESENT. VEH
HAD BAD BATTERY. CHANGED BATTERY AND VEH STARTED BUT DIED
AGAIN WITHIN A COUPLE OF MILES AND WOULD NOT RE-START.
CHECKED INJECTORS WITH NOID LIGHT AND NOID LIGHT FLASHES
WHEN CRANKING ENGINE.
CHECKED PCM FUSES AND THEY ARE GOOD. 12VOLTS TO COILS
AND GROUND IS GOOD. THERE ARE 4 WIRES TO EACH COIL. WHICH
ONE IS THE DRIVER THAT FIRES EACH COIL? ARE THERE ANY
OTHER TESTS THAT I CAN PERFORM?

1 Answer

20

FOUND OIL LEAK AT REAR OF INTAKE MANIFOLD CAUSING CAM SENSOR WIRE INSULATION TO CRUMBLE AND EXPOSED WIRES SHORTING.

2 people found this helpful.

Your Answer:

CarGurus Experts

  • #1
    yetilikesbeer
    Reputation
    12,830
  • #2
    dragonflyoffshore
    Reputation
    11,750
  • #3
    John Saffrahn
    Reputation
    11,690
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Chevrolet Silverado 1500
202 Great Deals out of 5,975 listings starting at $2,975
Used Ford F-150
321 Great Deals out of 14,968 listings starting at $1,712
Used GMC Sierra 2500HD
17 Great Deals out of 1,640 listings starting at $9,988
Used Toyota Tundra
35 Great Deals out of 1,184 listings starting at $8,500
Used Chevrolet Silverado 2500HD
16 Great Deals out of 1,285 listings starting at $8,995
Used GMC Yukon
16 Great Deals out of 929 listings starting at $1,225
Used Toyota Tacoma
55 Great Deals out of 1,071 listings starting at $8,708
Used Dodge RAM 1500
3 Great Deals out of 71 listings starting at $4,000
Used Chevrolet Tahoe
24 Great Deals out of 911 listings starting at $11,900
Used Ford F-250 Super Duty
24 Great Deals out of 1,204 listings starting at $7,995
Used GMC Canyon
14 Great Deals out of 1,437 listings starting at $7,495
Used Chevrolet Corvette
29 Great Deals out of 1,060 listings starting at $15,871

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.