Question about 1995 Cadillac Seville

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Had my Waterpump replaced 4 Months ago. Since about a Week or so my Temperature is going up to 225 and then back down (without A/C). Before it was normal like around 203. Weak Waterpump....????

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Check for coolant flow at the Purge line,this is a common problem on the Northstar.
There is a small diameter hose coming from near the top of the coolant tank,this is the purge line.
With the engine idling,pull the purge line from the tank,if there is no coolant flow from this small hose,it is blocked and this will cause overheating.If the hose is clear, check for blockage at the nipple on the tank.

Posted on Sep 23, 2009

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Can be low anti-freeze, air in the coolant system or a bad headgasket

Posted on Sep 23, 2009

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