Engine wont crank

Sometimes I have a no crank happen it is just like there is no battery. Zero volts, no lights, no dome lights no keyless entry, nothing ziltch. If I hook up the jumper cords and jumpstart it it jumps starts easy. I can shut it off and it will start right up again like nothing was wrongwith it. It might start fifty times untill wham it dont do nothing zero. No power etc, no dashlights no keylessentry nothing has power. Ok I have cleaned the battery terminals wich wernt dirty.I replaced the battery. I have checked and cleaned the grounds on the engine block and the fender. I have removed the cover on the underhood fuse block and checked the main power feed to the fuse box. The funny thing today when it did it I hooked up a jump box to the battery started the truck shut it off and unhooked the jump box and then the truck starts fine now. I just have to wait for about fifty time and it wont have power again. I dont know what to do. It did this with the old battery and the new battery. A friend of mine told me that he thought I should replace the fuse box under the hood. I removed it and checked the main big power power feeds and all plugs were clean tight.

Sorry it took so long to get back. When this happens I have no headlights no nothing. Usually when I walk up to the truck and I use my keyless entry. If it works every thing will be fine but when it does its thing the keyless entry wont work either.I have no dome light no headlights no nothing like the battery is gone missing. When I cleaned the cables there was no acid or corrision on them. I replaced the long bolt and the spacer too.

Electrical problem
2002 GMC Yukon V8 Two Wheel Drive Automatic 91000 miles

Last several weeks, turn key and only clicking sound happened, no cranking then after serveral tries it cranks and starts. Somtimes it would turn over without any delay at other times needed to turn key several times before it would start. Now only a clicking sound from turning the key, no cranking. Battery and starter tested at parts store both checked out good. Battery connections look good but somthing is wrong. Can anyone help on this?

I tried the 10 min x3 on off sequence without success. My battery was disconnected for about 1 week.

My truck has two alarms on it and it wont crank and it is flashing and, battery, and the security light is flashing.

My girlfriends Yukon started up the other day and as soon as she started to take off it died on her and now wont even turn over I checked the cables and there is power but I have not checked the starter yet and also she said the ignition was never able to turn without the key but now is able to. Just looking for some parts to look at before I start replacing any help will be much appreciated.

2003 GMC Yukon V8 Four Wheel Drive Automatic 76800 miles

A week ago I parked my 2003 Yukon XL running great. Last evening I tried to start the car but the starter would not operate. I suspected that the battery (1 year old) may be low on charge so I placed it on a charger over night. This afternoon I again tried to start the car after a good charge but the starter wouldn't operate. I then choose to try out various accessories (lights, horn, power seat & window, etc) and all worked well; in fact all on at the same time and no power starving...I think the battery is fine. I next tried to start the car and noticed that when the key is turned to starting mode, the dash instrument lights dim and the accessories suffer from power starvation. I think something other than starter problems is at play here... No indication that the starter solenoid is operating normally. Any clues?

Having the exact same problem ---> 2003 GMC Yukon XLT

Please let me know if you figure it out!

Am considering replacing starter

Hi there - hope you had luck with your yukon. Ended up taking mine into a shop. Turned out the electronic fuel pump wires had been fried and the car has some sort of automatic shut off if there is no fuel getting to the engine so it saves the battery. Cost 677.00 dollars. Hope this helps!

Electrical problem
1994 GMC Yukon V8 Four Wheel Drive Automatic

lot of new parts, can jump selanoid. Turn key no turn over.

New ign sw, new lock cyl, two starters, three selinoids. Complete new power supplypassing fuse box. Steering col was once replaced, cant find nsw, not on bot of column, not on trans?