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<blockquote data-quote="woody" data-source="post: 1284170" data-attributes="member: 18138"><p>The last month I have been having cooling issues with my 96 GT. Started with a cracked intake where the plastic meets the crossover tube at the thermostat. I have replaced all hoses, water pump, intake, and both sensors on the crossover tube over the past month. Drove it to Vegas and back and had no issues other than forgetting to tighten the radiator cap, causing it to overheat and force coolant out the cap. Replaced the degas tank when I got home as the low coolant sensor would not go off even though it was full of coolant and the temp was normal.</p><p></p><p>The car is quick to get real hot to the touch. The temp gauge moves up to the "O" in normal and stays there. The heater works, and there is no coolant under the carpet indicating a bad heater core. However I can smell coolant at times, especially after I stop and turn off the car. </p><p></p><p>The last week under hard acceleration from a stop the heater core inlet hose (the one that comes off the top rear of the intake) pops off leaking coolant everywhere. This has happened twice, and both under hard acceleration. Normal driving it's fine.</p><p></p><p>I'm thinking I may have a damaged a head gasket. :cry:</p><p></p><p>Any Ideas?</p><p></p><p>I will be compression testing the car this Thursday when I have more time.</p><p></p><p>Based on my Service Manual, I think I may have narrowed it down to a heater core issue.</p><p></p><p>Based on this cooling system diagnosis and testing flow. I need to do the Pinpoint Test B.</p><p></p><p><img src="http://img.tapatalk.com/d/14/05/12/9usamu4e.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>And based on Pinpoint Test B:</p><p></p><p>B1 - coolant level good</p><p></p><p>B2 - no signs of contaminants</p><p></p><p>B3 - no leaves or outside obstructions</p><p></p><p>B4 - the inlet and outlet hoses are different temps.</p><p></p><p>I narrowed it down to a no on B4</p><p></p><p><img src="http://img.tapatalk.com/d/14/05/12/asube7yj.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p></blockquote><p></p>
[QUOTE="woody, post: 1284170, member: 18138"] The last month I have been having cooling issues with my 96 GT. Started with a cracked intake where the plastic meets the crossover tube at the thermostat. I have replaced all hoses, water pump, intake, and both sensors on the crossover tube over the past month. Drove it to Vegas and back and had no issues other than forgetting to tighten the radiator cap, causing it to overheat and force coolant out the cap. Replaced the degas tank when I got home as the low coolant sensor would not go off even though it was full of coolant and the temp was normal. The car is quick to get real hot to the touch. The temp gauge moves up to the "O" in normal and stays there. The heater works, and there is no coolant under the carpet indicating a bad heater core. However I can smell coolant at times, especially after I stop and turn off the car. The last week under hard acceleration from a stop the heater core inlet hose (the one that comes off the top rear of the intake) pops off leaking coolant everywhere. This has happened twice, and both under hard acceleration. Normal driving it's fine. I'm thinking I may have a damaged a head gasket. :cry: Any Ideas? I will be compression testing the car this Thursday when I have more time. Based on my Service Manual, I think I may have narrowed it down to a heater core issue. Based on this cooling system diagnosis and testing flow. I need to do the Pinpoint Test B. [img]http://img.tapatalk.com/d/14/05/12/9usamu4e.jpg[/img] And based on Pinpoint Test B: B1 - coolant level good B2 - no signs of contaminants B3 - no leaves or outside obstructions B4 - the inlet and outlet hoses are different temps. I narrowed it down to a no on B4 [img]http://img.tapatalk.com/d/14/05/12/asube7yj.jpg[/img] [/QUOTE]
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