1997 GMC Sonoma Slow coolant leak -- Head Gasket ??

1997 GMC SONOMA
130,000 MILES • 4 CYL • 2WD • AUTOMATIC
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NEAMH1
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My truck has been doing this for over a year. Somedays it seams to idle high with my check engine light on but after I drive it a while it will go off. Its like when the exhaust clears out it is fine. It happens a lot more when it is hot out and not so much when it colder out and it does leak a little coolant but I dont know where from. What could this be ???
Jul 1, 2010 at 1:31 PM
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HMAC300
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have a pro pressure check the cooling system to see if he can see anything. It could be an internal leak however. Also have him run a scan on the engine to see what code is being specifically set....
Jul 2, 2010 at 1:52 PM