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Twisted Illusionz · 08-21-2023, 08:13 AM

I am having a problem with my 05 z71 suburban. It was driving fine, shut it off after getting home from work. Went out a couple of hours later and now it will crank and crank and not start. If I stop trying to crank it and go to try again it won't even try to crank. Then if I shut the truck and lock it, then unlock it allows me to crank it again, but only the one time. I tried scanning it, but it shows that it can not communicate with the ecu. I'm thinking new ecu, but would like some suggestions please. I checked all grounds and fuses already.

08-21-2023, 08:13 AM	#1
Twisted Illusionz Registered User Join Date: Feb 2012 Location: Waller, TX Posts: 5	Please Help: Crank, but no start I am having a problem with my 05 z71 suburban. It was driving fine, shut it off after getting home from work. Went out a couple of hours later and now it will crank and crank and not start. If I stop trying to crank it and go to try again it won't even try to crank. Then if I shut the truck and lock it, then unlock it allows me to crank it again, but only the one time. I tried scanning it, but it shows that it can not communicate with the ecu. I'm thinking new ecu, but would like some suggestions please. I checked all grounds and fuses already.