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Ask GM Tech (Cam) Your Own Question
GM Tech (Cam)
GM Tech (Cam), Chevy Technician
Category: Chevy
Satisfied Customers: 15201
Experience:  GM Grand Master Technician 2007. 14 years experience.
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Engine missing while idealing

Customer Question

engine missing while idealing
Submitted: 1 year ago.
Category: Chevy
Expert:  Reggie Whiddon replied 1 year ago.

Hello does the miss go away when the truck isnt idling in other words driving down the road its okay?

Customer: replied 1 year ago.
Expert:  Reggie Whiddon replied 1 year ago.

Okay we most likely have a vacuum leak, do you hear an air sucking sound coming from engine bay

Customer: replied 1 year ago.
no
Expert:  Reggie Whiddon replied 1 year ago.

Do you have a check engine light on and a way to scan the engine, it would be real easy to determine vacuum leak if you did

Expert:  Reggie Whiddon replied 1 year ago.

If you light is on you can jump the pins in the aldl with a paper clip and get the codes by counting flashes

Customer: replied 1 year ago.
check engine light does not come on
Expert:  Reggie Whiddon replied 1 year ago.

Okay at idle when you are feeling this miss tell me about how it feels and exactly when it goes away

Customer: replied 1 year ago.
I don't feel the miss
Expert:  Reggie Whiddon replied 1 year ago.

What is it that makes you think it has a miss at idle then

Customer: replied 1 year ago.
don't no
Customer: replied 1 year ago.
running ruff
Customer: replied 1 year ago.
ok later
Expert:  Reggie Whiddon replied 1 year ago.

No sir i am here okay you say running rough

Expert:  Reggie Whiddon replied 1 year ago.

Let me ask you this if you went and stood behind your truck with it idling would the exhaust burn your eyes or your nose

I know it sounds crazy but it will tell me if it is running rich or lean

Expert:  Reggie Whiddon replied 1 year ago.

Sir

Expert:  Reggie Whiddon replied 1 year ago.

Sir are you still working on this