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Ask GM Tech (Cam) Your Own Question
GM Tech (Cam)
GM Tech (Cam), Chevy Technician
Category: Chevy
Satisfied Customers: 29427
Experience:  GM Grand Master Technician 2007. 14 years experience.
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Chevrolet Impala LS MY 2007 IMPALA IS LOSING ANTIFREEZE BUT

Resolved Question:

MY 2007 IMPALA IS LOSING ANTIFREEZE BUT DO NOT IS ANY ON THE GROUND WHERE IT IS PARKED. THE SMELL IS STRONG AFTER DRIVING 30 MILES.
Submitted: 5 years ago.
Category: Chevy
Expert:  GM Tech (Cam) replied 5 years ago.

GM Tech (Cam) :

Hello, I'm Cam. Please include all the details about your issue so I can accurately advise you. I cannot see your vehicle so please be detailed.

GM Tech (Cam) :

How much is it loosing and what size engine do you have?

JACUSTOMER-etw72yqr- :

3.5 about a half a pint every 3 days

JACUSTOMER-etw72yqr- :

3.5 about a half pint every 200 miles

GM Tech (Cam) :

Wgat size engine?

JACUSTOMER-etw72yqr- :

3500

GM Tech (Cam) :

One moment.

GM Tech (Cam) :

There is a bulletin for leaking head gaskets on these.

GM Tech (Cam) :

If a leak is found to be coming from a cylinder head gasket, the gasket must be replaced. When replacing the gasket be advised that larger flange hex head bolts are now to be used at locations 5 and 8. The larger flange hex bolts are the same as the ones used at the other six locations. When installing the two large flange hex head bolts at locations 5 and 8 a new style lower intake manifold gasket that has provisions to allow for the larger flange bolts must be used. These new lower intake manifold gaskets are contained in the gasket kits listed below.

JACUSTOMER-etw72yqr- :

did not receive the gasket kits recomendid

GM Tech (Cam) :
















Part Number



Description



Qty



19179755



Gasket Kit, Cylinder Head



1



11569648



Bolt, Cylinder Head



8 required per head


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