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 LS 4-Door RWD

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

118,195

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
    John Carson
    Reputation
    1,010
  • #2
    Tom Demyan
    Reputation
    990
  • #3
    Rowefast
    Reputation
    960
View All

Related Models For Sale

Used GMC Yukon
326 Great Deals out of 21,887 listings starting at $2,950
Used Chevrolet Suburban
336 Great Deals out of 21,799 listings starting at $1,900
Used Cadillac Escalade
233 Great Deals out of 12,127 listings starting at $2,040
Used Chevrolet Silverado 1500
1,726 Great Deals out of 154,936 listings starting at $1,700
Used Ford Expedition
394 Great Deals out of 21,305 listings starting at $1,400
Used GMC Yukon XL
221 Great Deals out of 12,731 listings starting at $2,495
Used Ford Explorer
871 Great Deals out of 66,084 listings starting at $1,275
Used Ford F-150
2,281 Great Deals out of 188,281 listings starting at $1,300
Used Toyota 4Runner
226 Great Deals out of 33,364 listings starting at $1,995
Used Dodge Durango
306 Great Deals out of 25,424 listings starting at $1,998
Used Jeep Grand Cherokee
1,129 Great Deals out of 77,929 listings starting at $1,000
Used GMC Sierra 1500
777 Great Deals out of 60,201 listings starting at $1,500

Used Cars For Sale

2018 Chevrolet Tahoe For Sale
69 Great Deals out of 19,915 listings starting at $35,420
2017 Chevrolet Tahoe For Sale
56 Great Deals out of 3,298 listings starting at $31,999
2016 Chevrolet Tahoe For Sale
25 Great Deals out of 1,193 listings starting at $25,547
2015 Chevrolet Tahoe For Sale
86 Great Deals out of 3,240 listings starting at $23,495
2014 Chevrolet Tahoe For Sale
31 Great Deals out of 571 listings starting at $13,900

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.