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Chevrolet 2006 Z71 Problem


bmccoy423

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Posted

I have a problem with my 2006 z71 5.7.As i was driving home I got an engine light with service 4wd .When i got home I checked for error messages and got po758 and po740.The truck wouldn't even turn over when i tried to start it back.After turning the key on and off it finally started.Also after I got the error message I noticed it wouldn't shift down into passing gear.I am thinking ignition problems.Any ideas?If so, what to replace?

Posted

brent....do not guess at a problem that is controled by computors ,,it will burn you every time ...

 

those are tranny codes i think

 

do not throw parts at it,ok??

 

it could be several things ....im sorry ,take it in,

 

good luck

 

Rob

Posted
brent....do not guess at a problem that is controled by computors ,,it will burn you every time ...

 

those are tranny codes i think

 

do not throw parts at it,ok??

 

it could be several things ....im sorry ,take it in,

 

good luck

 

Rob

 

I noticed today that the blower for the airconditioner also stops when the service 4wd light comes on.

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