Question about 1997 GMC Yukon

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1997 GMC Yukon, will crank but will not turn over. Even sprayed starting fluid in the intake and got nothing.

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  • GMC Master
  • 2,984 Answers

When did this start? Run out of gas or disconnect the battery for more than 5 minutes?

Posted on Jun 03, 2010

  • 15 more comments 
  • jacobneal13 Jun 03, 2010

    its been on and off for a couple of days now, one day it wouldnt start and i got it towed to my mechanic. It sat there for a day then started right up for him. I picked it up yesterday ran fine all day and now i go out there this morning and it doesn't turn over. just cranks

  • jacobneal13 Jun 03, 2010

    But no, i didnt run out of gas or disconnect the battery

  • Greg Bernett
    Greg Bernett Jun 03, 2010

    Okay...possibilities are:



    Fuel pump may be going bad



    Fuel filter is pretty dirty



    Do you have a check engine light?

  • jacobneal13 Jun 03, 2010

    no lights, but i hear the fuel pump when i first turn the key on

  • Greg Bernett
    Greg Bernett Jun 03, 2010

    Okay, is it fuel injected or carb?

  • jacobneal13 Jun 03, 2010

    fuel injected

  • Greg Bernett
    Greg Bernett Jun 03, 2010

    Okay...just for info...here is the inline fuel filter.








    The cartridge type fuel filter is located along the frame rail






  • Greg Bernett
    Greg Bernett Jun 03, 2010

    Could be the fuel pressure regulator.

  • jacobneal13 Jun 03, 2010

    You think the filter is the problem, even though it was running fine yesterday?

  • Greg Bernett
    Greg Bernett Jun 03, 2010

    Vehicles are weird...even if the system is still pressurized, which it is, sediment can affect things. I would try a pressure check first. The gauge set-up is similar to that of of tire gauge....This will narrow down it to the fuel pump, regulator...but kinda hard to positively point out the filter.

  • jacobneal13 Jun 03, 2010

    gotcha, i appreciate the help but i dont have a fuel pressure gauge to test it

  • Greg Bernett
    Greg Bernett Jun 03, 2010

    You can rent one dirt cheap from like Schuck's/O'reilly's/NAPA/Kragen/Chief's...those kind of places.

  • jacobneal13 Jun 03, 2010

    alright, then what would i hook it up too?

  • Greg Bernett
    Greg Bernett Jun 03, 2010

    On your fuel rail, you have a little nipple that looks just like a tire valve stem....you connect it there.

  • Greg Bernett
    Greg Bernett Jun 03, 2010

    Here is a pic of your rail....you connect where the #15 is:










    Exploded view of the fuel rail assembly-MFI systems

  • Greg Bernett
    Greg Bernett Jun 03, 2010

    Something in the fuel system....looking through some diagrams...if you can get it to the garage, have them take a look at the fuel system...pressure regulate, throttle body, fuel meter....but definitely not a spark problem.

  • Greg Bernett
    Greg Bernett Jun 03, 2010

    Re-reading your comments.....do me a favor and get a reader at a parts store.....they will let you use it for free. They'll even show you how to connect it and read the codes (if any). You may have a stored code....

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I have a 1999 GMC Yukon getting fuel, spark and even cranking good at times. Then if I turn it off for a while, I have to squirt a shot of starting fluid into the intake hole and it cranks over & over...


If you have to spray fluid into it then it sounds like the fuel presseure is not there, get a fuel pressure gauge and see what the pressure reading is, then leave it hooked up for what ever time it takes to not start, before you try to start it check the pressure, if it has dropped then your fuel injector/s or fuel regulator is leaking, crank the engine after taking the reading, the fuel pressure should come back, 60-66 PSI, Vent the fuel tank vapors by loosening the fuel cap.Position the ignition switch and the A/C system in the off position. Install a fuel pressure gauge to the vehicles fuel pressure valve. and with the keyon, engine off verify the PSI reading on the gauge.
Anything less than 60 psi and your fuel pump is weak

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Wont start changed fuel pump relay fuse new battery new starter igntion coil still wants to crank but wont hear fuel pump kicking on but nothing jusy trying to fix this will my husband is doing missionary...


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I was driving down the road and the truck just quit. it cranks very well, but no intentions of turning over. i checked the spark,good but even when i puur gas in the carb. nothing happens


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99 yukon 180,000 mi. doesn't start. cranks forever, but won't start. Should I be able to hear the fuel pump when I turn on the key?


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Nov 30, 2009 | 1999 GMC Yukon

2 Answers

I have a 1999 gmc Yukon it is getting fuel and spark i even sprayed starter fluid in the intake but it still wont start it turns over good but wont start


ok make sure you have good fuel pressure
you must have good spark must fire a spark tester
if all that is good then check compression
and don't use STARTER FLUID on a GAS ENGINE it can blow a hole through the piston
hope this helps

Nov 12, 2009 | 1999 GMC Yukon

2 Answers

Im getting spark for the plugs and im getting fuel. i even put starter fluid in the intake and gas but it wont start it just turns over and nothing


A 1999 GMC Yukon has a fuel-injected engine. They are known for the fuel injector lines inside the intake plenum to break and flood the engine. If you are pouring starter fluid and gas in the intake you are only making it worse. replace the injector assembly with the "new improved" injector assembly and replace the plugs, then it will probably start.

This subject is covered by GM Technical Service Bulletin No.: 00-06-04-003B

See GM Parts List below. This replacement Injector assembly is now also available in the aftermarket.
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Nov 11, 2009 | 1999 GMC Yukon

1 Answer

Timing 97 yukon


distributor has to be installed correctly and then timing set with scan tool

Sep 19, 2009 | 1997 GMC Yukon

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