2007 chevy Tahoe crank but no start
My 2007 Tahoe cranks but won't start, battery was
replaced and O2 sensors as well. Any help would
Need to check to see if there is spark, and fuel pressure. Have to narrow it down. You could put a scanner on it to see if there are any codes.
Why did you replace the O2 sensors? They will not keep it from starting.
Check fuel relay with gas cap off. And test fuel rail . Next air box.connection. ..and fuse25 amp. Blown. Leads not hook up.
There are mapping sen.for fuel .neg off for 5 sec .the hook on turn key on too run then off the start.
Blown main fuse ( 30 amp inside box. Inside engine wall..replace. check for lose contacks too there. .batt off. Neg.side only. Fr
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