just replaced battery, starter, fuel filter, fuel pump relay. still wont start. will almost start ,but doesnt.Also, starter makes a real nasty sound every cpl of turns

Asked by Jan 28, 2016 at 07:45 AM about the 2000 GMC Yukon Denali 4WD

Question type: Maintenance & Repair

ok, starter got screwed trying to start motor for a cpl days. got new starter, new battery, fuel pump relay. still no start. aparently it was hardstarting before but always started. It seems like it wants to start,a little stumble every once in a while. Fuel pump can be herd. Starter fluid had no response whatsoever.has spark.starter makes ugly sound every cpl of turns, when it almost starts.Also, electrical is doing wierd things, and tranny pops out of gear occasionaly, hard to get reverse. W.T.F.?? The most important  issue is , wont start. messing up other parts trying. HELP, thanx

2 Answers


If you got no response with starter fluid then you do not have spark at the plugs, if you have ground on it long enough that you fried a starter that it is possible that the cylinder walls have been washed by too much fuel also. So verify that you have good spark at the plugs, it should be a bright blue arch on the spark plugs, if not check the coil output, it should be able to throw an arch at least 1 inch and still be a bright blue in color if not replace the coil, if it is then replace the cap, rotor, plug wires, before replacing the plugs I would squirt a little oil into each cylinder then install new plugs, if it doesn't fire in 10 seconds it is not going to and further diagnostics need to be done, i.e. Fuel pressure and flow, exhaust system back pressures, full live data scan.

1 of 1 people found this helpful.

thanks. i will check it out

Your Answer

GMC Yukon Experts

  • #1
  • #2
    David Boccabello
  • #3
View All

Related Models For Sale

Used Chevrolet Tahoe
625 Great Deals out of 37,366 listings starting at $795
Used Cadillac Escalade
250 Great Deals out of 11,801 listings starting at $2,995
Used GMC Yukon XL
216 Great Deals out of 12,544 listings starting at $2,700
Used Chevrolet Suburban
420 Great Deals out of 22,163 listings starting at $2,495
Used GMC Sierra 1500
881 Great Deals out of 58,809 listings starting at $1,980
Used Ford Expedition
435 Great Deals out of 19,800 listings starting at $2,500
Used Chevrolet Silverado 1500
2,171 Great Deals out of 149,980 listings starting at $1,499
Used Ford F-150
2,486 Great Deals out of 219,880 listings starting at $1,222
Used Ford Explorer
835 Great Deals out of 63,811 listings starting at $600
Used Jeep Grand Cherokee
786 Great Deals out of 72,877 listings starting at $999
Used Dodge Durango
220 Great Deals out of 24,239 listings starting at $1,500
Used Toyota 4Runner
310 Great Deals out of 29,734 listings starting at $2,500

Used Cars For Sale

2018 GMC Yukon Denali 4WD For Sale
2,850 listings starting at $62,526
2017 GMC Yukon Denali 4WD For Sale
10 Great Deals out of 624 listings starting at $49,900
2016 GMC Yukon Denali 4WD For Sale
18 Great Deals out of 576 listings starting at $42,698
2015 GMC Yukon Denali 4WD For Sale
19 Great Deals out of 958 listings starting at $33,995

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.