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Gm Tech (Cam)
Gm Tech (Cam), GMC Mechanic
Category: GMC
Satisfied Customers: 1667
Experience:  GM Grand Master Technician 2007. 14 year experience.
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Got a check engine light on. Had it scanned, showed bad glow

Customer Question

got a check engine light on. Had it scanned , showed bad glow plug#3. Changed all glow plugs on passenger side. Still have check engine light on.Do I need to disconnect battery to clear code?
JA: Does the light stay on, or does it blink?
Customer: it blinks for a couple seconds and then stays solid.
JA: What is the model/year of your GM?
Customer: 2008 gmc 3500 siera
JA: Are you fixing your 3500 yourself? What have you tried so far?
Customer: fixing myself.
JA: Anything else you want the mechanic to know before I connect you?
Customer: no
Submitted: 2 months ago.
Category: GMC
Expert:  david craig replied 2 months ago.

Hi Im Dave, do you have a scan tool?

Customer: replied 2 months ago.
no I do not
Expert:  david craig replied 2 months ago.

is there anyway you can take it to get the code erased?

Customer: replied 2 months ago.
replacing all the glow plugs . when I get the truck put back together I can take it to the dealer
Customer: replied 2 months ago.
original code was PO673
Expert:  david craig replied 2 months ago.

ok. i thought you replaced them all? and why all when only #3 is faulting?

Expert:  david craig replied 2 months ago.

hows it going?

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