1996 gmc Yukon vortec v8. runs great. till you let it sit 30 min then no start. checked fuel ,has 64 psi has spark. just won't start in the morning or after it sits. any clues?

Asked by Aug 02, 2015 at 09:37 AM about the 1996 GMC Yukon SLE

Question type: Maintenance & Repair

3 Answers

18,510

Need to check the fuel pressure and for spark when engine will not start.

Yes. There is both @ startup. And still nothing until I prime with a little gas. I am sure the injectors are not priming the cyclders prior to starting. I rented a fuel pressure tool and all is fine. In specs. And like I said once it starts you can drive all day ,no problems. New plugs. New cap,button,wires,fuel filter. Also it has 96,000 orig miles. I need help

18,510

Sounds like you have dirty fuel injectors add fuel injector cleaner to gas tank and clean throttle body with throttle body cleaner spray. Also check air filter.

Your Answer

Add photo

Related Questions

  • Headlights won't turn on 11 answers

    My Yukon has auto headlights that turn on at night. Leaving the gym last night they wouldn't turn on auto or manually. The parking lights were on dim and my high beams would work. Its both the lf/rt l...

    2000 GMC Yukon SLT 4WD

    -

    Maintenance & Repair

  • What can be wrong with my 2003 GMC yukon if it is not the fuel pump, relay, or fuse? 1 answer

    I started my car the other morning and it was running up till the point I put it in reverse and then it died. My dad couldnt hear the fuel pump coming on, and the fuse still clicks under the hood. M...

    2003 GMC Yukon 4WD

    -

    Maintenance & Repair

  • Rough Idle/No start 5 answers

    Okay guys, so my truck has been sitting since May of this year, and it broke down while I was driving about 200 miles from home. So obviously, it was running well and I didn't think there were any ...

    1996 GMC Sierra 1500 C1500 SL Standard Cab LB

    -

    Maintenance & Repair

  • rough idle, stalling, loss of power. 228 answers

    o2 sensor code 44 (lean) Replaced: coolant temp sensor, tps, map sensor, fuel filter, and o2 sensor. It will run normal on occasion but only lasts about 45 seconds or so. I don't think its the torqu...

    1995 GMC Sierra 1500 K1500 SL 4WD Extended Cab Stepside SB

    -

    Maintenance & Repair

  • Not starting after leaving it sit over night 32 answers

    I have a '99 mercury grand marquis. I just got a brand new starter put on and some wires cleaned up. I paid an extra $90.00 an hour on a machine for the wiring and nothing came up. It starts up but af...

    1999 Mercury Grand Marquis 4 Dr GS Sedan

    -

    Maintenance & Repair

Yukon

Looking for a Used Yukon in your area?

CarGurus has 17,656 nationwide Yukon listings starting at $2,950.

ZIP:

Search GMC Yukon Questions

GMC Yukon Experts

#1 clayduster71
clayduster71
Reputation 2,130
#2 David Boccabello
David Boccabello
Reputation 490
#3 Danielle Heller
Danielle Heller
Reputation 470
View All

Related Models For Sale

Used Chevrolet Tahoe
568 Great Deals out of 27,890 listings starting at $1,500
Used Chevrolet Suburban
311 Great Deals out of 19,403 listings starting at $1,350
Used GMC Sierra 1500
794 Great Deals out of 67,648 listings starting at $1,995
Used Ford Expedition
460 Great Deals out of 24,703 listings starting at $1,400
Used Ford F-150
2,176 Great Deals out of 204,450 listings starting at $1,499
Used Jeep Grand Cherokee
1,057 Great Deals out of 73,843 listings starting at $800
Used Ford Explorer
958 Great Deals out of 72,522 listings starting at $999
Used Toyota 4Runner
245 Great Deals out of 20,470 listings starting at $1,995

Used Cars For Sale

2017 GMC Yukon SLE For Sale
461 listings starting at $38,725
2016 GMC Yukon SLE For Sale
28 listings starting at $38,995
2015 GMC Yukon SLE For Sale
55 listings starting at $33,725
2014 GMC Yukon SLE For Sale
12 listings starting at $23,500
2013 GMC Yukon SLE For Sale
21 listings starting at $18,500

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.