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

16,810

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

16,810

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

  • 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

  • Headlights won't turn on 9 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

  • 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. 225 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 17,538 nationwide Yukon listings starting at $1,777.

ZIP:

Search GMC Yukon Questions

GMC Yukon Experts

#1 clayduster71
clayduster71
Reputation 1,980
#2 Danielle Heller
Danielle Heller
Reputation 440
#3 David Boccabello
David Boccabello
Reputation 380
View All

Related Models For Sale

Used Chevrolet Tahoe
1,078 Great Deals out of 31,862 listings starting at $1,495
Used Chevrolet Suburban
694 Great Deals out of 21,755 listings starting at $2,095
Used GMC Sierra 1500
1,158 Great Deals out of 57,707 listings starting at $2,495
Used Ford Expedition
631 Great Deals out of 22,962 listings starting at $1,100
Used Ford F-150
3,395 Great Deals out of 204,731 listings starting at $1,273
Used Jeep Grand Cherokee
1,137 Great Deals out of 69,559 listings starting at $495
Used Ford Explorer
1,413 Great Deals out of 72,564 listings starting at $985
Used Toyota 4Runner
387 Great Deals out of 20,057 listings starting at $2,995

Used Cars For Sale

2017 GMC Yukon SLE For Sale
197 listings starting at $45,430
2016 GMC Yukon SLE For Sale
151 listings starting at $39,999
2015 GMC Yukon SLE For Sale
3 Great Deals out of 53 listings starting at $33,729
2014 GMC Yukon SLE For Sale
3 Great Deals out of 24 listings starting at $25,998