Having problems with your 1999 GMC Yukon ?
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?
Yes you should be able to hear the fuel pump run for about 5 seconds once the key is turned to the on pos. check to make sure you have spark. if you do try having someone spray air intake or carb cleaner into intake manifold while you crank. If the truck starts right up for a second (or stays running as you keep spraying) Id say you have a bad fuel pump and id change the sending unit also. (First check the fuel pump fuse and fuel pump relay) GMC and Chevy are nororiously known for having bad fuel pump/sending unit problems. I have prob changed over 60 myself.
My 1999 yukon wont start we replaced the fuel relay switch and it ran fine .we went to store and it wouldnt start again i then replaced it again and it still wont start up what is wrong with it?
Repair Help & Product Troubleshooting for 1999 GMC Yukon
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