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Jim Grant Tech Tips Jim Grant Tech Tips
A collection of helpful articles based on reader submissions
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  Jim Grant's Tech TipsJim Grant's Tech Tips
Below is a collection of Jim Grant's Tech Tips sorted by Vehicle Make. These Tech Tips were answers to questions submitted to Jim by ALLDATAdiy.com users over the course of many years.
If you have any questions, please feel free to email us.
 
 

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  Jim Grant's Tech Tips

'01 Pontiac Firebird, Long Life Coolant?

Q: I’ve heard horror stories about long life coolant. I bought a ‘01 Pontiac Firebird with 35k on it. I checked the coolant level and found some brown looking rust colored stuff on the cap. Is this normal? How can I tell if it needs to be changed?

- Kevin S.

A: It sounds as if your vehicle’s cooling system needs service, and it’s a good thing you’re checking under the hood. This long life coolant that GM has been using in their vehicles has been really odd. In some vehicles, the stuff works great and stays low in acidity with good clarity. On other vehicles the stuff doesn’t last 2 years without making that brown stuff you’ve noted. The problem with the long life antifreeze is once it gets out of control it’s is a disaster to deal with. Also, we’ve have found that people have been mixing the old style green anti freeze with the orange long life. That is a big no-no! Never mix the two coolants together. Have your cooling system flushed and refilled and don’t forget the coolant reservoir, it needs to be drained and cleaned as well.

 
     
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