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Need to sett timing on a 4.3 gmc

Customer Question
jimmie just did intake gaskets...
need to sett timing on a 4.3 gmc jimmie just did intake gaskets and get po0341 code now
Submitted: 3 years ago.Category: GMC
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Answered in 24 minutes by:
6/12/2015
GMC Mechanic: Tim Mohr, ASE MASTER TECH replied 3 years ago
Tim Mohr
Tim Mohr, ASE MASTER TECH
Category: GMC
Satisfied Customers: 16,700
Experience: 30 YRS EXPERIANCE, AUTO AND TRUCK,FOREIGN AND DOMESTIC, GAS AND DIESEL
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Hi, my name is ***** ***** timing is set using a scanner to watch the cam retard, it must be set to o degrees on these or it will set this cod, do you have a scanner to set this?
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Customer reply replied 3 years ago

no scanner just code reader and timing light

GMC Mechanic: Tim Mohr, ASE MASTER TECH replied 3 years ago
a timing light will not work on these, you need a scanner, the cam retard has to be set to 0 degrees, and a scanner is the only way to do this, there are no timing marks on these,Tim
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Customer reply replied 3 years ago

yes there are timing marks on this 2001 4.3

GMC Mechanic: Tim Mohr, ASE MASTER TECH replied 3 years ago
ok, thise marks are for installing the distributor only, would ou like the procedure for installing the distributor correcly, to makle sure its in time?
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Customer reply replied 3 years ago

no thanks. got it straightened out. code is gone now running well

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