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97 Yukon won't start back up


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Taydar
Novice

May 7, 2010, 10:38 AM

Post #1 of 4 (1648 views)
97 Yukon won't start back up Sign In

1997 GMC Yukon
I was driving down the road about 35mph when my engine stopped running. May have been some hesitation first but not much if any. Now I cn't get it to start back up.
I can hear the fuel pump come on when I first turn the key. I used a bit of starter fluid on breather and engin backfired. I checked for a spark and yes I can see one. Used the screwdriver in the plug cap beside a ground test.
Now what? Frown


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

May 7, 2010, 2:41 PM

Post #2 of 4 (1643 views)
Re: 97 Yukon won't start back up Sign In

You need to use a fuel pressure gauge to check the pressure. These are high pressure systems and they are very pressure sensitive. They require a minimum of 55 PSI to even run.



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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



Taydar
Novice

May 15, 2010, 6:02 AM

Post #3 of 4 (1618 views)
Re: 97 Yukon won't start back up Sign In

Got her running.

Thank you Hammer Time for taking the time to answer my orginal post. I did check the fuel pressure and it was 58psi so I started back on the firing.
I had done the check with the screwdriver in the plug cap against the block and had seen some fire. Groping along I started taking things apart. Spark plugs looked warn but not bad enough to cause my engine to stop while running. Took distrabutor cap off and found the problem. The rotor button had actually broken off. Lodged in there shorting the mess out. I was still seeing fire at the screwdriver test but it wasn't enough or at the right time it seems. Replaced rotory cap, rotor, plug wires, and plugs. Running like a top Smile

thanks all
Taydar


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

May 15, 2010, 6:36 AM

Post #4 of 4 (1612 views)
Re: 97 Yukon won't start back up Sign In

Glad you found it. Thanks for posting the fix.



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.







 
 
 






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