If my timing is off 45 degrees on the distributor cap will I still get fire to the spark plugs?

Asked by May 10, 2016 at 11:38 AM about the 1999 Chevrolet Tahoe 4 Dr LS SUV

Question type: Maintenance & Repair

I recently had my O2 sensor wires melted to my
exhaust. Right around the same time my truck
backfired and apparently jumped timing. I went
back to fix the wires and correct all that now my
truck won't start anymore. I got up under  the hood
and  found out that I wasn't getting fire to my spark
plugs. Ive replaced spark plugs, wires, distributor
cap, rotor, ignition sensor, coils, camshaft
positioning sensor, and still have no fire to my
number one spark plugs I was wondering if maybe
my timing being off that far if it could possibly
affect me not getting spark?

1 Answer

98,515

What are the trouble codes? I am concerned about the backfire and the fact that it shifted the timing that far off, it is possible that it jumped the cam timing as well due to a worn timing chain. I would do a compression test too see if it is low, if it is then a timing chain is a real possibility. Any way if all that checks good then the computer controls the spark on this rig, with the distributor that far out you should be getting a sync signal code, bring number one up on TDC on the compression stroke and reposition the distributor so the rotor is on number one firing tower location, this just a ball park setting to get it running and the dealer can realign the cam sync with the crank sync signals later on, or if it runs good and no check engine light about the sync signal then you don't have too. HTH

Your Answer

Chevrolet Tahoe Experts

  • #1
    Tom Demyan
    Reputation
    840
  • #2
    Rowefast
    Reputation
    830
  • #3
    Lucia Taylor
    Reputation
    550
View All

Related Models For Sale

Used GMC Yukon
416 Great Deals out of 20,900 listings starting at $2,000
Used Chevrolet Suburban
279 Great Deals out of 20,492 listings starting at $1,000
Used Cadillac Escalade
207 Great Deals out of 11,019 listings starting at $2,900
Used Chevrolet Silverado 1500
2,080 Great Deals out of 181,410 listings starting at $1,898
Used Ford Expedition
368 Great Deals out of 21,702 listings starting at $1,500
Used Ford Explorer
788 Great Deals out of 62,797 listings starting at $1,425
Used Ford F-150
2,130 Great Deals out of 181,862 listings starting at $1,000
Used Toyota 4Runner
250 Great Deals out of 21,411 listings starting at $2,300
Used Jeep Grand Cherokee
857 Great Deals out of 70,765 listings starting at $995
Used Dodge Durango
263 Great Deals out of 20,183 listings starting at $999
Used GMC Yukon XL
215 Great Deals out of 13,109 listings starting at $1,495
Used GMC Sierra 1500
783 Great Deals out of 67,750 listings starting at $1,350

Used Cars For Sale

2017 Chevrolet Tahoe For Sale
92 Great Deals out of 20,147 listings starting at $36,401
2016 Chevrolet Tahoe For Sale
46 Great Deals out of 1,849 listings starting at $31,643
2015 Chevrolet Tahoe For Sale
70 Great Deals out of 2,979 listings starting at $24,995
2014 Chevrolet Tahoe For Sale
10 Great Deals out of 634 listings starting at $11,995
2013 Chevrolet Tahoe For Sale
37 Great Deals out of 1,371 listings starting at $10,495

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.